Options markets carry real information — sometimes more current than the stock price itself, since options let sophisticated investors express a specific view with defined, often smaller upfront cost. "Options flow" refers to the pattern of options being bought and sold, and unusual activity can be a hint (never a guarantee) about what informed money is positioning for.
Two of the most-watched signals: the put/call ratio (relative volume of bearish puts versus bullish calls — an unusually low ratio suggests bullish positioning, an unusually high one suggests bearish positioning) and implied volatility (how much price movement the options market is pricing in going forward, which tends to spike ahead of known catalysts like earnings).
Current options chain snapshot for SPY.
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