Earnings Season
How quarterly results move stocks, why expectations matter more than numbers, and how to prepare.
Earnings season is the period each quarter when listed companies report their financial results. Stocks often move sharply on these reports — but in a way that surprises beginners, because what moves a stock isn’t the raw numbers but how they compare to expectations.
- The principle — stocks move on results vs expectations (the surprise), not absolute good/bad, because expectations are already priced in.
- So — record profits can fall (a “miss” vs higher hopes); a loss can rise (a “beat” vs worse fears).
- “Buy the rumour, sell the news” — stocks often run up before results and fade after, as the surprise disappears.
- For investors — judge vs expectations, watch guidance (the futureA binding agreement to buy or sell at a set price on a future date. matters most), and beware earnings volatilityThe size of price swings — not their direction./crush.
Should I buy a stock before its earnings to catch a good result?
It’s risky — even a genuinely good result can drop the stock if it missed *expectations* or guidance disappoints, and options/volatility are inflated pre-earnings (a crush often follows). You’re essentially betting on a surprise *and* on how an already-anticipating market reacts. Many long-term investors simply hold through earnings per their thesis rather than trading the event; short-term earnings bets are a low-edge, high-variance game.