The earnings decision
Lesson 19 · about 10 min
You did not enter within five days of earnings. But swing trades last two to three weeks, and companies report every quarter, so sooner or later you will be holding a position with a report two days away. This is the moment most swing traders handle worst, because they treat it as a prediction problem ("will the numbers be good?") when it is a sizing problem ("how much can I afford to be wrong about a coin flip?").
What earnings actually does to a stock
The options market prices an expected move for the report, typically 5% to 12% for a large stock and more for a small one. Historically the direction is close to a coin flip even for companies that beat estimates, because the reaction depends on guidance and positioning as much as on the numbers. What is not a coin flip is the size: the stock will likely move several days' worth of range in one gap.
So the question is never "will it go up?" It is "what does a move of the expected size, in the wrong direction, do to my position and my account?"
The framework
Answer four questions the night before the report is due (or the weekend before, if the report is early in the week).
1. Where does the trade stand in R?
| Unrealised P&L | Default action |
|---|---|
| Under 1R | Exit fully before the report. You are risking 1R of fresh loss on a coin flip for no structural reason. |
| 1R to 2R | Exit at least half; move the stop on the rest to break-even and accept a gap could jump it. |
| Over 2R with partial already taken | Hold the remainder (it is house money after the partial) or reduce it to a size where a 15% adverse gap costs under 1% of the account. |
2. What would a 15% adverse gap cost?
remainder shares × entry price × 0.15 = worst-case dollar hit
If that number is over 1% of the account, cut the remainder until it is not. Note that the stop is irrelevant here; the gap jumps it.
3. Is the regime green?
Post-earnings drifts continue more reliably in green regimes. In amber or red, reduce further or exit; the market will punish even good reports.
4. Is there a reason to want the exposure?
The only good answer is "the position is already well in profit and the remainder is small enough that the worst case is trivial". Reasons like "I think they will beat" or "the chart looks ready" are prediction, and prediction is not the job.
Worked example
Account $40,000. Entry $60, 100 shares, stop $57. The stock is at $66 (2R). Partial of 50 shares was taken. Earnings tomorrow after the close.
- Remainder: 50 shares × $60 entry × 0.15 = $450 worst-case hit on a 15% gap against the entry price; from the current $66 it would be 50 × $66 × 0.15 = $495.
- 1% of the account is $400.
- $495 exceeds $400, so cut the remainder to 40 shares (40 × $66 × 0.15 = $396).
The trade now holds 40 shares through the report with $300 already banked and a worst realistic case that leaves the trade roughly flat overall. Whatever the report says, the account does not care much.
Before the decision After the decision
100 shares at $66 40 shares at $66, 60 sold
15% gap = -$990 15% gap = -$396 (banked +$300 +$360)
= 2.5% of account = 1.0% of account, trade still positive
Key idea: Holding through earnings is a sizing decision, not a forecast. Reduce the position until a 15% adverse gap costs less than 1% of the account, or exit.
The other direction: entering after the report
The gap-and-hold setup (Module 4) exists for the day after. If you exited before the report and the stock gaps up and holds, you may re-enter under those rules. If it gaps down through your old stop, you avoided the loss. Either way, you made a clean decision with a complete bar in front of you, which is the swing trader's entire advantage.
Non-stock equivalents
- Crypto: token unlocks, protocol upgrades, exchange listings, and regulatory announcements. Same framework; use a 20% adverse move instead of 15% because the moves are larger.
- Forex: central-bank rate decisions and the major monthly data prints. A 15% move does not happen, but a 2% to 3% move in a leveraged position is the equivalent damage. Compute the worst case in dollars, not percent.
- Futures: the same macro calendar. Index futures around a Federal Reserve decision behave like a stock around earnings, on a smaller scale.
The mistake in both directions
Traders who hold everything through earnings are gambling. Traders who exit everything before earnings on principle are giving up the post-earnings drift, which is one of the more reliable sources of large winners. The framework sits between: hold only what is already paid for and small enough not to hurt.
Try it: Take your current or most recent position and imagine earnings are tomorrow. Compute the worst-case hit from a 15% adverse gap on the current size. Compare it to 1% of your account. Write down how many shares you would need to sell to comply, and whether the trade is over or under 1R.
Recap
- Earnings direction is close to a coin flip; the move size is not. Treat it as sizing, not prediction.
- Under 1R: exit. 1R to 2R: exit at least half. Over 2R with a partial taken: hold a remainder small enough that a 15% adverse gap costs under 1% of the account.
- Reduce further in amber or red regimes.
- Re-enter after the report only via the gap-and-hold rules.
- Apply the same framework to crypto unlocks, central-bank decisions and major data releases.
See it drawn
Original diagrams for the ideas on this page. Illustrative, not real market data.