The gambler's fallacy: why nothing is 'due'

Flip a fair coin and get five heads in a row. What's the chance the next flip is tails? Most people feel it's higher — tails is "due." It isn't; it's still 50/50. That stubborn intuition is the gambler's fallacy, and it leads traders into some of their worst decisions.

What's going wrong

The gambler's fallacy is the belief that past independent outcomes change future probabilities — that a streak of one result makes the opposite "due." It stems from what Tversky and Kahneman called the representativeness heuristic: we expect even short sequences to look "random," so a run of the same result feels like it must correct.

But independent events have no memory. The coin doesn't know it just landed heads five times. Each flip starts fresh.

How it hurts traders

• "I'm due for a win." After a losing streak, the urge to bet bigger — to make it back on the trade that's surely coming — is the gambler's fallacy in action. It's exactly how a normal losing streak becomes a blown account.
• "It can't keep going." A trend that's run a long way feels like it must reverse, so traders fight it — often right before it runs further.
• Misreading randomness as signal. Streaks are a guaranteed feature of randomness, not evidence that the odds have shifted.

The discipline

The cure is to treat each trade on its own merits, sized by your rules, independent of recent results:

• Your position size shouldn't grow because you're "due."
• A losing streak is a reason to check your process, not to chase with bigger bets.
• Let the rule decide each trade as if it were the first.

Streaks happen. They mean nothing about the next trade. Acting as if they do is just gambling with extra steps — and the math is not on your side.

---

This article is educational and does not constitute investment advice or a recommendation. Options trading involves substantial risk and is not suitable for every investor. Autopilot Options does not guarantee profits or prevent losses. Past performance and historical data do not guarantee future results.