Earnings and event risk for swing traders

What you will learn

• Which company and market events can gap a share during a swing trade
• How to estimate the implied move of an earnings report from option prices
• How to compare three choices before an event: exit, reduce or hold
• How ex-dividend dates change the price and can trigger stops

Explanation

What an earnings report contains (revenue, margins, guidance) is covered in the Stocks course, and macroeconomic events are covered in the Risk Management course. This lesson looks only at one question: what happens to an open swing position when a known event falls inside the planned holding period?

The event check

Before every entry, check the following for the planned holding period plus a few days:

• Earnings date: from the company's investor relations financial calendar. Note whether results are released before the market opens or after it closes; both mean the reaction appears as a gap at the next open.
• Annual general meeting and ex-dividend date: in Germany, many companies pay one dividend per year, and the ex-date is usually the first trading day after the annual general meeting (Hauptversammlung). On the ex-date the price usually opens lower by roughly the dividend amount, which can move price through a tight stop. Some venues or brokers also delete or adjust standing orders around corporate actions, so check that your stop is still active.
• Sector events: results of a large competitor or regulatory decisions.
• Market events: central bank decisions and major economic releases, which move the whole market.

Some news cannot be scheduled. Under the EU Market Abuse Regulation, listed companies must publish inside information as soon as possible as an ad-hoc announcement (Ad-hoc-Mitteilung), which can happen in the evening. This is unavoidable background gap risk, handled by sizing (lesson 7).

Estimating the implied move

Where listed options exist on the share, their prices show how large a move the market is pricing. A quick approximation uses the at-the-money straddle: one call and one put with the strike nearest the current price and the first expiry after the event (options are covered in the Derivatives course).

Implied move ≈ straddle price ÷ share price

This is the market's estimate of the typical absolute move, not a limit. Actual reactions can be smaller or much larger. If no options exist, look at the share's past earnings gaps on the chart as a rough guide and treat the largest one as a realistic stress case.

Three choices before the event

A practical rule of thumb: hold through an event only if (1) your open profit is at least as large as the implied move and (2) a gap of twice the implied move would still cost no more than about 1R from today's price. Decide and write it down before the event.

Worked example

Hypothetical example: you bought 50 shares at €60.00 with a stop at €57.00 (risk €150 = 1R). Four days later the share trades at €63.00, and earnings are due after tomorrow's close. The at-the-money straddle costs €5.04.

1. Implied move: €5.04 ÷ €63.00 = 8%.
2. Exit fully at €63.00: profit 50 × €3.00 = €150 = +1R, locked in.
3. Hold 50 shares, three scenarios for the next open: - +8% to €68.04: gain 50 × €8.04 = €402 = +2.7R. - −8% to €57.96: still above the stop; open loss 50 × €2.04 = €102 = −0.7R. - −15% to €53.55: stop filled near the open; loss 50 × €6.45 = €322.50 = −2.15R.
4. Reduce: sell 25 shares at €63.00 (+€75) and hold 25. Results: +8%: €75 + €201 = +€276; −8%: €75 − €51 = +€24; −15%: €75 − €161.25 = −€86.25.

Open profit (5% of price) is smaller than the implied move (8%), so rule (1) fails. Holding the full position is not allowed by the rule; exiting or reducing is. Excluded: costs, slippage beyond the open and taxes.

Common mistake

Practice activity

Hypothetical data: 25 shares bought at €120.00, stop €112.00 (risk €200). The share now trades at €126.00; earnings are due before tomorrow's open. Straddle €11.34.

1. Calculate the implied move.
2. Calculate the result of holding all 25 shares if the share opens 9% lower and 18% lower.
3. Calculate the result for the 18% case if you sell 15 shares at €126.00 first and hold 10.
4. Apply the two-part rule from the lesson. What do you do?

Key takeaways

• Check earnings, dividend, sector and market events for the whole planned holding period.
• Implied move ≈ at-the-money straddle ÷ share price; it is an estimate, not a limit.
• Decide before the event: exit, reduce or hold, using a written rule.
• Ex-dividend dates lower the price mechanically and can trigger tight stops.

Next step

In the next lesson you build a sizing method that limits the damage of any large gap, scheduled or not.