Skip to content
← The syllabus
Corrections

What we got wrong

Every course corrects itself. Most do it quietly: the lesson is edited, the old wording disappears, and a reader who learned the wrong thing never finds out. This is the list instead — what a lesson said, what it says now, and what made the difference.

67 corrections across 56 lessons. A correction is recorded in the same change that fixes the lesson, so this list cannot quietly fall behind the academy.

Lesson links open with membership; the corrections themselves are public.

A ledger of corrections with one row lit, each line marked with what changed.
It was wrong2026-10-06
Reading where price sits
It said

That a casefile’s Why-the-score section carries a profile factor, and that the reader finds it there and reads which of the three states it names.

It says

That the casefile’s Levels section gives the value high, the point of control and the value low, and how far the price sits from the point of control, from which the reader reads the price’s state.

What made the difference

Why the score lists the seven factors of the conviction score, and the volume profile is not one of them; the casefile shows the profile under Levels. Found while correcting the factor lessons for S-2.

It was wrong2026-10-06
The factors
It said

That each factor under a score is printed as a score from 0 to 100, the number above its bar (such as “63/100”) being that factor’s own score and the fill being the score, with the quiz keying “Its score out of 100”; and that the Why-the-score section shows what each factor’s band has been worth in the record.

It says

That each factor is printed as a reading, high, mixed or low, with the exact score kept on the server, and its bar fills a third, two thirds or the whole way; that the quiz keys “Its reading: high, mixed or low”; and that below the list the section shows how calls that scored in the same band have resolved.

What made the difference

From 6 October 2026 (S-2) /api/conviction-score sends each factor as a reading instead of its score, because the seven exact scores beside the exact composite let the weights be solved, and the casefile and the conviction page print the word. The section never showed a record for each factor’s band; the record beside the list is the score’s.

It was wrong2026-10-06
Zones on this platform
It said

That the casefile’s Why-the-score section shows the zone factor as a score beside the other six factors, a number standing for the zone position, and that the reader reads the supply demand factor’s score there.

It says

That the section shows the zone factor as a reading, high, mixed or low, which comes from the zone position the lesson lists, and that the reader reads that reading there.

What made the difference

From 6 October 2026 (S-2) the casefile prints each factor as a reading rather than its score.

It was wrong2026-10-05
Allocation, rebalancing and adding over time
It said

That at $1,000 a month, closing a $12,000 gap with new contributions alone takes about a year.

It says

That with nothing sold the account grows as the money goes in, so reaching the target takes about twenty months.

What made the difference

The accuracy read redid the arithmetic: after twelve months the account in the example is still at 62% stocks.

It was read as something else2026-10-05
Building a watchlist, and keeping it short
It said

A quiz offered "a record of every name considered" as a wrong answer, though the lesson describes a never-emptied list in nearly those words.

It says

That option is replaced with one the lesson does not support, so only one answer is right.

What made the difference

A line-by-line accuracy read of every lesson on October 5, 2026, with each suspected error checked a second time independently before it was changed.

It was wrong2026-10-05
What happens between the click and the fill
It said

That monthly execution-quality reports are published by trading venues and not by brokers.

It says

That since August 2026 the largest brokers publish them as well as the venues.

What made the difference

The accuracy read checked the amended disclosure rule, which took effect in August 2026.

It went further than its source2026-10-05
Compounding, inflation and real returns
It said

That subtracting inflation from the nominal return always overstates the real return, by more as rates rise.

It says

That the shortcut overstates a positive real return and overstates the size of a negative one.

What made the difference

The accuracy read found the lesson's own third example running the other way.

It went further than its source2026-10-05
Before and after the bell
It said

That trading in US stocks runs from four in the morning to eight at night Eastern, stated as the whole of it.

It says

That those are the exchanges' hours; some brokers also offer an overnight session on a separate venue, and the large exchanges have announced overnight sessions of their own.

What made the difference

The accuracy read checked the current state of overnight trading.

It was wrong2026-10-05
Fibonacci retracements, and what is known about them
It said

That this platform's chart draws the fifth retracement level at 76.4%.

It says

That the chart's drawing tool draws 78.6%, while the Fibonacci levels the platform works out by itself use 76.4%.

What made the difference

The accuracy read compared the lesson with what the chart actually draws.

It was wrong2026-10-05
Fresh, tested, and the strength of a zone
It said

A quiz explanation said that the age of a zone is its freshness.

It says

That how long ago a zone formed is not one of the four readings, and freshness is about revisits, not age.

What made the difference

The accuracy read found the explanation contradicting the lesson's own definition of a fresh zone.

It was wrong2026-10-05
Funded-account challenges, and the arithmetic of the fee
It said

That an evaluation asking for ten trading days requires the trades to fit inside ten days.

It says

That ten days is a floor, not a ceiling: the trades may take longer, and passing in about ten days means 8 to 16 trades a day.

What made the difference

The accuracy read found the sentence contradicting the lesson's own definition of the ten days as a minimum.

It went further than its source2026-10-05
Futures: an obligation with a date on it
It said

That exchange margin requirements are changed without notice.

It says

That the exchange changes them at short notice, often about one business day, and that it is a broker's own added margin that can rise with no notice at all.

What made the difference

The accuracy read checked how the exchange publishes margin changes.

It was read as something else2026-10-05
The gate and a parked day
It said

A quiz explanation said the difference between a parked answer and a data failure was "the next question", which it was not.

It says

It now says the difference is a separate question further down the quiz.

What made the difference

A line-by-line accuracy read of every lesson on October 5, 2026, with each suspected error checked a second time independently before it was changed.

It went further than its source2026-10-05
Inflation prints, and what a tenth of a point does
It said

That a central bank's inflation goal is usually written against the price index inside the national accounts; and that month 1 was the largest month in the example.

It says

That the United States writes its goal that way while most other central banks use a consumer price index; and that month 1 was the second-largest month in the example.

What made the difference

The accuracy read checked the published mandates of the large central banks, and the lesson's own table.

It was wrong2026-10-05
Judging a record someone else shows you
It said

A scenario answer referred to "the two years" around a six-month record, in a case where the service had existed for 20 months.

It says

It now refers to the 20 months as a whole.

What made the difference

A line-by-line accuracy read of every lesson on October 5, 2026, with each suspected error checked a second time independently before it was changed.

It was wrong2026-10-05
Liquidity sweeps
It said

That the reclaim after a sweep is a close back inside the range on the same bar or the next one.

It says

That the reclaim is a close back inside the range on the same bar; a bar that closes beyond the level is a break.

What made the difference

The accuracy read found the next-bar case contradicting the lesson's own rule that a sweep is a wick and never a close.

It was read as something else2026-10-05
Options and the expected move
It said

The lesson pointed to "the previous lesson" for the volatility index, after another lesson had been placed between the two.

It says

It now names the lesson, Reading volatility, where the volatility index is explained.

What made the difference

A line-by-line accuracy read of every lesson on October 5, 2026, with each suspected error checked a second time independently before it was changed.

It was wrong2026-10-05
What happens to an option when the company changes
It said

That a large special cash dividend adjusts an option contract by a ratio, and that crossing a $0.60-wide quote twice costs $1.20 a share.

It says

That the strike is reduced by the amount of the dividend with the deliverable left at 100 shares, and that in at the ask and out at the bid costs the width once, $0.60 a share.

What made the difference

The accuracy read checked the options clearing organisation's published adjustment policy and redid the arithmetic; the worked example and a quiz answer changed with it.

It was wrong2026-10-05
Ranges, and the three ways they end
It said

That the 5.0R in the table is one extreme of the range to the other, divided by the distance to the stop.

It says

That it is the distance from the entry to the far extreme, divided by the distance to the stop.

What made the difference

The accuracy read redid the division: extreme to extreme gives a different figure from the one in the table.

It was wrong2026-10-05
The ratios a record is judged by
It said

That all four ratios in the table are computed per period and annualised by the square root of the number of periods.

It says

That only the first two are per-period ratios of that kind; the other two are computed from totals.

What made the difference

The accuracy read compared the sentence with how the lesson's own table computes each ratio.

It was wrong2026-10-05
Reading where price sits
It said

That this platform marks price as stretched by its distance from the point of control.

It says

That the distance is measured from the edge of the value area, as a share of the point-of-control price.

What made the difference

The accuracy read compared the quiz with how the platform makes the measurement.

It was read as something else2026-10-05
REITs, preferred shares and closed-end funds
It said

A quiz offered "a discount of $2.00" as a wrong answer for a fund holding $20.00 a share and trading at $18.00, which is also true.

It says

That option is replaced with a wrong percentage, so only one answer is right.

What made the difference

A line-by-line accuracy read of every lesson on October 5, 2026, with each suspected error checked a second time independently before it was changed.

It was wrong2026-10-05
Replaying a resolved call
It said

In two places, that a profitable replay is weak evidence about the method.

It says

That a replay is not evidence about the method at all, which is what the rest of the lesson already said.

What made the difference

The accuracy read found the lesson landing on both sides of its own distinction.

It was wrong2026-10-05
RSI, MACD and momentum
It said

That a shrinking MACD histogram means the distance between the two moving averages is closing.

It says

That the histogram is the gap between the MACD line and its signal line, so when it shrinks the distance between the two averages has stopped growing as fast, or has begun to narrow.

What made the difference

The accuracy read recomputed a case where the histogram shrinks while the two averages are still moving apart.

It was wrong2026-10-05
Sequence risk: why the order of returns matters once money is leaving
It said

The lesson cited the journal article under the title of its earlier working-paper version.

It says

The title is now the one the article was published under in the journal named.

What made the difference

A citation check against the journal's own listing.

It was wrong2026-10-05
The trades you did not take
It said

A quiz explanation said the results of passed signals exist only because the passes were written down on the day.

It says

That the results can be scored afterwards from the price; what only a record made on the day holds is the reason each signal was passed.

What made the difference

The accuracy read found the explanation contradicting the lesson body.

It was read as something else2026-10-05
Trading while employed by someone
It said

A quiz offered selling "whenever the price reaches a target" as a wrong answer, though a pre-set price is one of the plan terms the lesson itself lists.

It says

That option is replaced with one the lesson does not support, so only one answer is right.

What made the difference

A line-by-line accuracy read of every lesson on October 5, 2026, with each suspected error checked a second time independently before it was changed.

It was wrong2026-10-05
Value at risk: three ways to compute it and what it leaves out
It said

The lesson gave a working-paper number with the title of a different, earlier paper by the same authors.

It says

The title now matches the working paper cited: it carries the subtitle "Evidence from Factors and Transactions Data".

What made the difference

A citation check against the published record of both papers.

It was wrong2026-10-05
Name the bar
It said

A quiz explanation said volume, range and the close are all measured against the name's own recent bars.

It says

That volume and range are measured against the recent average, and the close is read inside the bar itself.

What made the difference

The accuracy read found the explanation contradicting the lesson body.

It was wrong2026-10-05
What a sector is, and what moves one
It said

That when a company is moved to a different sector, the published histories of both sector indices are rebuilt on the new membership.

It says

That the change normally applies from the review forward, and the history already published stays as it was, built on the membership of its time.

What made the difference

The accuracy read checked the index providers' own announcements of the 2018 sector changes; the quiz answer was wrong with the text and is corrected too.

It was read as something else2026-10-05
What the research actually supports
It said

A quiz offered "over a single day of holding" as a wrong answer, though the study did report daily returns.

It says

That option is replaced with one that is false, so only one answer is right.

What made the difference

A line-by-line accuracy read of every lesson on October 5, 2026, with each suspected error checked a second time independently before it was changed.

It was read as something else2026-10-05
What this platform does not do
It said

A sentence about the cost of "keeping the last of those back" pointed at the wrong item in the list above it.

It says

It now says what it meant: keeping the method back has a cost, and the cost falls on the reader.

What made the difference

A line-by-line accuracy read of every lesson on October 5, 2026, with each suspected error checked a second time independently before it was changed.

It was wrong2026-10-05
If your broker fails, and how an account moves
It said

That a dividend paid during an account transfer goes to whoever held the shares on the payment date.

It says

That it goes to the firm that held the shares on the record date, and is passed on afterwards.

What made the difference

The accuracy read checked how a dividend entitlement is fixed.

It was wrong2026-10-05
When returns arrive: overnight and the session
It said

That the overnight-return study covered a decade.

It says

That the study covered the years 1993 to 2006.

What made the difference

A citation check against the working paper's own sample period.

It went further than its source2026-10-02
The gate and a parked day
It said

That OPEN "means conditions historically favoured long picks" and CLOSED that they "did not", and that "the gate itself is under live testing; its record is on the experiments pages".

It says

That OPEN means the gate's conditions for long picks were met and CLOSED that they were not, and that the gate's reads so far do not agree: one confirmed that gated long picks beat the index; a later one failed, with the caveat that the gate never closed in its window. Both rows are on the receipts page's ledger.

What made the difference

A Fable review on 2026-10-02: "historically favoured" said more than the record shows. The ledger carries one read that confirmed the gate (E2-GATE) and a later one that failed (E3-H1). The glossary and the title page carried the same claim and were corrected the same day.

It went further than its source2026-10-02
Reading a LONG or SHORT call here
It said

That a call's direction means "the data favours a rise" (or a fall), that its plan's target is "where it has historically resolved", and that its factors are "trend, momentum, relative strength, patterns, regime".

It says

That the direction is which way the factors lean, taken together, a description and not a forecast; that the target is a reference level in the call's direction, set by a fixed rule and framed in ATR, not a forecast that price reaches it; and that the factors are the seven readings behind the score — trend, momentum, range position, setup quality, volume, confluence and the supply/demand zone.

What made the difference

A Fable review on 2026-10-02 checked the plan code: a target comes from a fixed rule per setup (a multiple of ATR, a pattern's measured move, or a multiple of the risk), not from a record of where such setups ended, and the platform has not measured that. The factor list named five things that are not the score's seven. The order-types lesson's take-profit line said the same about targets and was corrected with it.

It was wrong2026-10-02
Screens and event alerts
It said

That a name with no earnings date on file is read one way on a screen registered from October 6, 2026 and another way on every other screen, where it is always left out of an "earnings not within N days" screen.

It says

That from October 6, 2026 every screen reads it one way: after a night the earnings calendar answered, no date on file means no report in the calendar's window and the name passes; after a night it did not answer, the name is left out and the rankings page says so in a line. A screen registered before that date keeps the earlier reading for its record.

What made the difference

A Fable review on 2026-10-02 found that leaving every undated name out drops exactly the names whose reports are furthest away, and that a live screen has no record to protect, so live screens follow the same rule from the same date. The scenario now takes place on a night the calendar did not answer, where the name is still left out.

It was wrong2026-09-30
Estimates, surprises and what happens after
It said

That the casefile's earnings-drift table "records what a name's price did after each of its own past reports" — and, in the earnings-report lesson, that the table "measures this per name".

It says

The same words, true from Sep 29, 2026: the table now measures from the report date. Until then it measured from the day each fiscal quarter ENDED, about a month before the report, so the lesson described a table the platform did not yet have.

What made the difference

A read of the EPS history feed's dates on Sep 29, 2026 (they are quarter ends, not report dates) while moving the casefile's price history to a second source. The route was corrected the same day (e96856a) and the error is on the public ledger's integrity list (SEP-29). The lesson's wording stands; what was wrong was the platform behind it.

It went further than its source2026-09-25
Fundamentals on this platform
It said

That “a technical grade has been worth different amounts in different names, and the fundamentals are the most likely reason”, and that the casefile shows “the grade, the plan, the record of that grade”.

It says

That two calls with the same score can sit on very different businesses and the platform makes no claim about what that difference has been worth, and that the casefile shows the score, the plan, the record of past calls and the fundamental context.

What made the difference

Since the E4-H3 read on 2026-09-25 the grades are internal-only pending a recalibration charter and the grade-based record is no longer shown, so the lesson could neither say what a grade has been worth nor that the casefile shows it.

It went further than its source2026-09-25
Guidance, estimate revisions and insiders
It said

That the fundamental context the casefile shows beside the score is “the reason the same grade has been worth different amounts in different names”.

It says

That it is context shown beside the score and one of the things a reader weighs that the score leaves out, with no claim about what a grade has been worth.

What made the difference

The sentence rested on grades having a measured worth. The E4-H3 read on 2026-09-25 found the grades did not rank outcomes, and they are internal-only pending a recalibration charter.

It was wrong2026-09-25
Golden crosses and death crosses
It said

That the record of what followed each trend state is on the track-record pages, “and it is that record, not the name of the cross, that the grade uses”.

It says

That the trend factor reads the stack of averages and its slope, that what followed each state is on the track-record pages, and that the score describes the reading, not what followed it.

What made the difference

A check of the lessons after the E4-H3 read on 2026-09-25, which found the grades did not rank outcomes and left them internal-only pending a recalibration charter. The score is worked out from how the factors read on the night a call is logged, and the grade was a band of that score, so neither drew on the record of what followed.

It was read as something else2026-09-25
Moving averages and trend
It said

That a long call in a stacked uptrend and a long call against a falling 200-day are different animals, “and the grade reflects it”, which read as the grade telling the stronger call from the weaker.

It says

That the trend factor reads the two differently, and that the score describes that difference and does not say which call will do better.

What made the difference

Since the E4-H3 read on 2026-09-25 the grades are internal-only pending a recalibration charter: the sentence pointed to a letter the pages no longer print, and the read found the higher bands of long calls had not done better than the lower ones.

It went further than its source2026-09-25
Reading a LONG or SHORT call here
It said

That a call’s grade is “a measured category with a historical hit rate”, that a reader should know “what the grade has actually been worth in the record”, and that a SHORT call’s grade of A describes “How the factors line up, and the band’s record”, which the quiz marked correct.

It says

That a call carries a conviction score out of 100 describing how its factors read in the call’s direction, and that the score describes “How the factors line up”, now the correct answer, with no claim about what any band has done.

What made the difference

The E4-H3 read on 2026-09-25 found the grades did not rank outcomes, so there is no band record for the lesson to point to; the grades are internal-only pending a recalibration charter. The lesson had also kept the old answer after the quiz in What BUY means was corrected, so the two disagreed.

It was wrong2026-09-25
Replaying a resolved call
It said

That a replay opens a resolved call with its “symbol, side, grade and the night it was logged all shown”.

It says

That it shows the symbol, the side and the night the call was logged. The record still keeps the grade it stamped at the time; the replay does not print it.

What made the difference

Since the E4-H3 read on 2026-09-25 the grades are internal-only pending a recalibration charter, and the replay no longer prints the grade.

It was wrong2026-09-25
Screens and event alerts
It said

That an event alert reports a name’s grade changing, worded like “NVDA grade B → C”, and that a screen can filter on the grade.

It says

That the alert reports the conviction score moving far enough to cross one of the internal bands, worded like “NVDA conviction score 71.4 → 63.9”, and that a screen filters on the other readings a casefile prints.

What made the difference

Since the E4-H3 read on 2026-09-25 the grades are internal-only pending a recalibration charter: the alert now carries the score’s move instead of the letters, and a new screen no longer offers a grade filter.

It went further than its source2026-09-25
The grade
It said

That the conviction score is banded into six grades from A+ to D, set out in a table that called A+ “historically the highest-hit-rate band”; that Best Available considers only grade A and above because lower grades “showed no reliable edge at the July read”; and that a band’s word is replaced by its actual hit rate once enough calls have closed.

It says

That the conviction score is a weighted seven-factor total out of 100 that describes and does not forecast; that its letter grades are internal-only pending a recalibration charter, because the E4-H3 read, a test of long calls, found they did not rank outcomes, the higher bands of long calls having done no better than the lower ones; and that no band is claimed to have done better than another.

What made the difference

The pre-registered E4-H3 read on 2026-09-25 tested long calls and found that the grades did not rank their outcomes at seven days (A −2.17, B+ −0.78, B +0.33 points against the index). The ledger row demotes the grades to internal-only pending a recalibration charter and removes the public grade-based win-rate context, so the lesson could no longer teach the bands or what they had done.

It was wrong2026-09-25
The ledger and the gate's own receipt
It said

That each row of the public ledger shows the night, the symbol, the side, the grade, the logged price, the seven- and thirty-day results and the verdict.

It says

That each row shows the night, the symbol, the side, the logged price, the seven- and thirty-day results against the index and the verdict, with no grade.

What made the difference

Since the E4-H3 read on 2026-09-25 the grades are internal-only pending a recalibration charter, and the public ledger no longer carries a grade column.

It was wrong2026-09-25
What BUY means
It said

That a long call on this platform is a description made of “a grade, the factors behind it, and a plan with a stop and a target”.

It says

That it is made of “a direction, the factors behind it, and a plan with a stop and a target”, and the last quiz question asks about a high conviction score rather than a grade of A.

What made the difference

The grades have been internal-only since the E4-H3 read on 2026-09-25, pending a recalibration charter, so a call no longer carries a letter on the page.

It went further than its source2026-09-25
What BUY means
It said

That the grade on a long call “says how many factors agree and what that band has historically done”, in the answer to the lesson’s last quiz question.

It says

That a high conviction score describes how the factors line up for the name: a description, not a forecast of what the price will do. The letter grades themselves have been internal-only since the E4-H3 read, pending a recalibration charter.

What made the difference

The pre-registered E4-H3 read on 2026-09-25 found that the grades did not rank the outcomes of long calls at seven days (A −2.17, B+ −0.78, B +0.33 points), so the answer could no longer point to what a grade band has done.

It went further than its source2026-09-25
Writing it down
It said

That once the plan is written the platform’s readings become inputs to it, and that “a conviction grade is part three”, the part of the plan that states the setup the reader is looking for.

It says

That a conviction score is a reading to check against part three, the setup the plan states, rather than a verdict on it.

What made the difference

The E4-H3 read on 2026-09-25 found the grades did not rank outcomes, and they are internal-only pending a recalibration charter, so a plan could not take a grade as its setup. The score describes how the factors read; it does not stand in for a setup the reader has written down.

It went further than its source2026-09-16
Annuities: four contracts and what each charges
It said

That the SEC's bulletins describe an annuity's surrender period as typically six to eight years, sometimes ten or longer.

It says

That the SEC's bulletin describes it as typically six to eight years, sometimes as long as ten.

What made the difference

A read of the SEC's Updated Investor Bulletin: Variable Annuities (30 October 2018) found the wording "after six to eight years or sometimes as long as ten years"; the lesson's "or longer" went past the source.

It was wrong2026-09-16
Dow Theory and Elliott wave: two old theories and what testing found
It said

That Cowles (1933) classified Hamilton's editorials from 1902 to 1929, and that both studies read one writer over about twenty-seven years.

It says

That Cowles's sample ran from December 1903 to November 1929, about twenty-six years, and found about 12% a year from following the editorials against 15.5% from holding; 1902 is the year Hamilton took the editorship, which is how Brown, Goetzmann and Kumar date his record.

What made the difference

A read of the text of Brown, Goetzmann and Kumar (1998): they quote Cowles on "the 26 years under review" and date their Table I from December 1903 through November 1929. The lesson had given Cowles the 1902 start that belongs to Hamilton's editorship.

It went further than its source2026-09-16
Dow Theory and Elliott wave: two old theories and what testing found
It said

That Brown, Goetzmann and Kumar (1998) found Hamilton's calls earned less return than holding the market, with less risk taken.

It says

That Brown, Goetzmann and Kumar (1998) found Hamilton's timing had value once risk is counted: his calls kept the portfolio out of the market for long stretches, so that in their own simulation it earned about the same as holding the market with less volatility, and measured against the risk it carried the record showed high Sharpe ratios and positive alphas. The lower-return finding is Cowles's (1933).

What made the difference

A check of the paper's abstract (Journal of Finance 53(4), 1311–1333) found no statement that the calls earned less than holding; that result belongs to Cowles, and the lesson had attached it to the later paper. Confirmed the same evening against the paper's text: its Table II puts the Hamilton portfolio at 10.73% a year against 10.75% for the all-stock portfolio, with a Sharpe ratio of 0.559 against 0.456 and a Jensen alpha of 4.04%.

It was read as something else2026-09-16
Fibonacci retracements, and what is known about them
It said

That no widely accepted study known to the academy shows prices turning at the retracement levels more often than chance, that this was the honest state of the evidence, and that it was why nothing was cited — which read as though no test of the ratios had been published.

It says

That Batchelor and Ramyar, in Magic numbers in the Dow (2006), tested turning points of the Dow Jones Industrial Average from 1914 to 2002 and found ratios near Fibonacci values no more often than chance; that Prechter replied in Elliott Waves, Fibonacci and Statistics (2006) that filtered trends are not Elliott waves; and that no widely accepted study shows the levels marking turns better than chance.

What made the difference

A survey of what the major curricula teach turned up a published test of Fibonacci ratios in Dow swings, and a published reply to it, that the lesson had said nothing about.

It was wrong2026-09-16
Practising on five-minute bars
It said

That the daily loss limit adds up the realised losses of the whole trading day.

It says

That it adds the day's realised profits and losses together and pauses the session when that running total falls to the limit, which is what the simulator does.

What made the difference

A read of the simulator's code (lib/academy/sim.js): the limit nets the day's closed trades rather than summing losses alone.

It was wrong2026-09-16
The economic calendar
It said

That the scheduled releases which move everything at once are government releases, with the ISM manufacturing survey listed among them without distinction.

It says

That most are from government statistical agencies and the ISM survey is published by the Institute for Supply Management, a private association, so a lapse in federal funding delays the federal releases and not the private surveys.

What made the difference

The Institute for Supply Management is not a government agency; the lesson had grouped its survey with the federal releases.

It was read as something else2026-09-16
Trading while employed by someone
It said

That the reporting rules do not require the compensation element to be included in the basis a broker reports for employer shares.

It says

That for shares acquired through an equity plan since 2014 the rules do not let the broker include it: Treas. Reg. §1.6045-1(d)(6)(iii).

What made the difference

"Not required" understated the rule; the regulation forbids the inclusion for post-2013 equity-plan shares, which is why the reported basis is commonly nothing or the discounted price paid.

It was read as something else2026-09-16
The volatility risk premium and the VIX term structure
It said

That Credit Suisse announced the XIV notes would be valued on 15 February 2018 and repaid on 21 February "at the closing indicative value of that date", which read as the value on 21 February.

It says

That the notes were valued at their closing indicative value on 15 February 2018, the accelerated valuation date, and repaid at that value on 21 February, the acceleration date.

What made the difference

A read of Credit Suisse's 6 February 2018 release (SEC EDGAR, exhibit 99.1) found the payment set at the closing indicative value on the accelerated valuation date, 15 February; the sentence had pointed "that date" at the payment date instead.

It went further than its source2026-09-16
Who is on the other side of your order
It said

That under Rule 605 the venues that execute orders publish monthly execution-quality statistics, with nothing said about brokers.

It says

That the SEC's 2024 amendments to Rule 605, in force from 1 August 2026, also require broker-dealers introducing or carrying 100,000 or more customer accounts to publish the same monthly statistics for their customers' orders.

What made the difference

The lesson described the rule as it stood before the 2024 amendments; the compliance date was moved to 1 August 2026 (Federal Register, 2 October 2025) and has now passed.

It was wrong2026-09-15
Accounts that change the tax
It said

That a Roth withdrawal is qualified once the account has been open five years.

It says

That it is qualified at least five tax years after the first contribution to any Roth IRA, and that a Roth 401(k) counts its own five years.

What made the difference

A check against the tax authority’s own guidance found the lesson attaching the clock to the wrong thing — the account rather than the taxpayer’s first Roth contribution.

It was read as something else2026-09-15
Adjusted earnings and one-off items
It said

That a charge may not be called non-recurring when something similar is likely within two years, stated as though it applied to everything a company says.

It says

The same rule, framed as applying in filings.

What made the difference

A check found the lesson applying a filing rule to a company’s speech generally.

It went further than its source2026-09-15
Estimated tax: paying through the year
It said

That paying the whole of last year’s tax is enough to avoid a penalty, with no condition attached.

It says

The same, provided a return was filed for last year and it covered all twelve months.

What made the difference

A check found the lesson stating a safe harbour without the condition that makes it available.

It was read as something else2026-09-15
Owning the index or picking stocks
It said

That a fund in the top quarter over one five-year period has rarely stayed there over the next.

It says

That few funds in the top quarter of their category in one year have stayed in the top quarter in each of the years that followed.

What made the difference

A citation check found the lesson describing a different measurement from the one the published persistence tables actually report.

It went further than its source2026-09-15
Judging a record someone else shows you
It said

A description of the publisher’s exclusion from adviser registration that was broader than the case supports.

It says

That a bona fide publication of general and regular circulation offering impersonal advice falls outside the definition of an adviser, citing Lowe v. SEC (1985).

What made the difference

A check against the decision found the lesson dropping the two conditions the ruling turns on.

It went further than its source2026-09-15
New listings: IPOs, lock-ups and the first months
It said

That after a listing the underwriting banks’ analysts do not publish research for a period, stated as a general rule without its source or its exceptions.

It says

That FINRA’s rules set a minimum quiet period of ten days before the underwriting banks’ analysts publish research, that the minimum does not apply to emerging growth companies, and that coverage often starts later still.

What made the difference

A read-only check against FINRA’s own rule found the lesson had turned a minimum with a named exception into a flat rule.

It was read as something else2026-09-15
New listings: IPOs, lock-ups and the first months
It said

A citation of Brav and Gompers that reported the underperformance without reporting what the authors concluded from it.

It says

That they found the gap concentrated in the smallest listings without venture-capital backing, that established firms of similar size and book-to-market did about as badly, and that they concluded it was not an effect of listing as such.

What made the difference

A citation check found the lesson using a paper to support a claim the paper argues against.

It was wrong2026-09-15
Settlement, margin and the borrow
It said

That a margin account’s maintenance requirement is measured at the close.

It says

That the requirement must be met throughout the trading day — twenty-five percent for long positions in marginable stock and more for short positions — and that a deficit left unmet for several business days can restrict the account’s credit.

What made the difference

A check against FINRA’s margin rule found the lesson describing the old end-of-day test rather than the intraday one.

This list covers what has been found and fixed. It is not a claim that nothing else is wrong — an academy of this size will contain errors nobody has caught yet, and the honest thing to say about those is that they exist.

IntellaZone is an educational and informational platform. Nothing on it constitutes investment, financial or trading advice, or a recommendation to buy or sell any security. All scores and plans are descriptions of data.

Past performance — including the forward-tested record — does not guarantee future results. Investing involves risk, including the risk of loss; short selling carries losses that can exceed the amount invested.

www.intellazone.com