A stock closes at $84. The report drops after the bell. By morning it's at $92, or it's at $76, and there was nothing to do about it while it happened.

No chart to watch. No stop that could have fired. Just a closed position, a scheduled report, and roughly seventeen hours between the close and the next bell.

Most of what decides whether that gap is survivable was already decided the day before: whether the position was sized for its actual worst case, whether the options bought were priced for a move the stock had any real chance of delivering, whether the report date was even confirmed instead of guessed at.

IV crush. The gap. Drift versus reversal. Four setups. Straddle risk. Binary-event sizing. Six ideas that sound simple individually and completely change how an earnings report reads once they're understood together.

Twelve modules. No ticker calendar, no beat-or-miss predictions, no chat room. You get the mechanics behind sizing and structuring a position around an event you can't watch unfold in real time.

The Earnings Trading System — a Trading Habits course cover

A Trading Habits Course

The Earnings Trading System

IV crush, the gap, drift versus reversal, four setups, options strategy, and binary-event position sizing, read the way a genuine earnings trader reads them.

  • Length 12 modules, built for genuine depth, not padding
  • Format A private, self-paced course page with working calculators and a candlestick drill built into the lessons, not links out to them
  • Access Instant, right after checkout, yours to re-read for good
  • Covers Reading a report, IV crush, the gap, post-earnings drift, post-earnings reversal, four setups, straddle and spread strategy, binary-event sizing, a personal calendar, and the behavioral guardrails that keep an account alive
  • Author TradingHabits.com

Built for one job: sizing and structuring a position around a scheduled event that can't be watched, and can't be stopped out, while it happens.

Abstract illustration of a glowing gold line making a sharp vertical jump upward, leaving a dark gap beneath it Abstract illustration of a single bright point of light leaving a long, slowly fading trail drifting across a dark background Abstract illustration of a single point of gold light splitting into two symmetrical diverging trails

What's Inside

The 12 Modules

  • 01What earnings trading actually is: confirmed vs. estimated dates, and why BMO and AMC reactions behave completely differently.Module 1
  • 02Reading the report like a trader: the headline beat or miss, why guidance usually moves the stock more, and the whisper number.Module 2
  • 03IV crush: reading the market's own expected move off the straddle price, and what crush does to that position the instant the report is out.Module 3
  • 04The gap: measuring it against the same relative-volume framework that governs any other gap in this shop's catalog.Module 4
  • 05Post-earnings announcement drift: the real 1968 academic finding, and why it still shows up in reports today.Module 5
  • 06Post-earnings reversal: fade the pop, fade the drop, and why neither drift nor reversal is the default outcome.Module 6
  • 07Four setups worth studying and backtesting personally, each one built from the mechanics already covered.Module 7
  • 08Options strategy around earnings: long straddles, defined-risk spreads, and why premium sellers have structure on their side, and their own risk.Module 8
  • 09Position sizing for a binary, gap-risk event: why there's no stop, and how to size by worst case instead.Module 9
  • 10Building a personal earnings calendar and a pre-trade checklist that actually gets checked before every position.Module 10
  • 11The five behavioral patterns that blow up earnings accounts, named plainly.Module 11
  • 12An 8-week path from paper to live size.Module 12

+ Setup Practice Lab in Module 7: 12 interactive candlestick drills built around post-earnings continuation and reversal. Watch a chart build, call Buy or Sell before the next candle prints, then see what happened.

Read This Before You Buy

Who This Course Actually Fits

You're a fit if

  • You already trade, or want to trade, around earnings reports and want to understand why some gaps hold and others fade.
  • You want to understand IV crush and the expected move before buying an option into a report, not after finding out the hard way.
  • You're willing to size a position by its worst case instead of a stop-loss distance that doesn't exist overnight.
  • You can hold two competing, equally real ideas at once, drift and reversal, without needing a single rule that predicts every gap.
  • You want the honest behavioral patterns that end earnings accounts, named plainly, not softened.

Skip it for now if

  • You're looking for a calendar of stocks about to beat or miss. This course teaches the mechanics of the reaction, not predictions about the report itself.
  • You've never placed an options trade and want to start with earnings positions as your first one. Module 8 assumes basic options mechanics.
  • You want a guarantee that reading a report correctly means the trade wins. No course can honestly offer that.
  • You're already sizing earnings positions by worst-case loss and checking the expected move before every entry. You may already have what this course teaches.
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Behind The Course

Where Post-Earnings Drift Was Actually Discovered

A 1968 Finding That Broke a Core Assumption

Ray Ball and Philip Brown published "An Empirical Evaluation of Accounting Income Numbers" in the Journal of Accounting Research in 1968. Studying how stock prices reacted to earnings announcements, they found something the dominant efficient-market thinking of the time didn't predict: prices kept drifting in the direction of an earnings surprise for months afterward, instead of adjusting immediately and completely the moment the news came out.

Why It Still Matters to a Trader Today

The finding has been replicated across decades of subsequent academic research and remains one of the most well-documented anomalies in finance, even as its size has generally shrunk in the decades since as markets have gotten faster. Module 5 covers the actual shape of that drift and why it sits alongside an equally real, opposite tendency: some earnings gaps reverse instead of continuing, covered in Module 6.

From a 1968 Paper to a Documented Market Anomaly

1968 Ball & Brown publish the original drift finding 1970s–1990s Widely replicated across decades of market data Today Still documented, size has generally narrowed

A finding from 1968 that directly challenged the strict efficient-market thinking of its era, replicated for decades since, still visible in how earnings reactions actually unfold today.

Try It: Step Through The Research Timeline

1968Period
Ball & Brown publish the original drift findingWhat Happened

Same three milestones as the timeline above. Drag through them in order and a single 1968 paper stops reading as a historical curiosity and starts reading as the origin of a pattern this course's Module 5 still teaches today.

Background only. The course itself works the expected-move, gap, sizing, and payoff math an earnings account runs on.

Common Questions

Who actually discovered post-earnings announcement drift?

Ray Ball and Philip Brown, in a 1968 paper in the Journal of Accounting Research. They found that stock prices kept drifting in the direction of an earnings surprise for months after the announcement, instead of adjusting all at once.

Does that mean every earnings gap keeps drifting in the same direction?

No. Module 6 covers the equally real, opposite pattern: many earnings gaps reverse instead of continuing. Both outcomes are documented and common. Neither is the guaranteed default for any individual stock.

Why can't a stop-loss protect an earnings position the way it protects a normal trade?

Because the market is closed, or trading on thin after-hours volume, while the report comes out and the gap happens. There's no order that can execute at a chosen price once the move has already occurred overnight. Module 9 covers sizing by worst case instead.

Sources & Further Reading

  • Ball, R. & Brown, P. (1968). “An Empirical Evaluation of Accounting Income Numbers.” Journal of Accounting Research, 6(2), 159-178.

    The original post-earnings-announcement drift finding Module 5 is built on.