There's a single number that tells you whether the money is leaning bullish or bearish. Most people read it wrong — they see the number but miss what it means. This lesson fixes that.
Lesson 4 of 9. You can spot prints, read the market picture, and weigh sweeps against blocks. Now the accounting system that turns all of it into direction.
The two lines that run everything:
• Bullish flow = bought calls + sold puts
• Bearish flow = bought puts + sold calls
Why do sold puts count as bullish? Selling a put means agreeing to buy the stock lower — you only do that if you're comfortable owning it. Quiet bullishness: "I'll own it down there, and I'll take premium while I wait." Institutions love this structure. Sold calls are the mirror: capping upside for income, often marking a "ceiling" where someone doesn't expect a rip.
The ratio: bullish premium ÷ bearish premium. Above 1.0, upside money dominates. Below 1.0, defensive. (October 5th's tape sat below 1.0 in every major sector — remember Lesson 2's snapshot? Now you know exactly how that number is built.)
The lesson-within-the-lesson — what separates beginners from practitioners: the ratio tells you direction, not character. $5M of urgent call sweeps and $5M of passive put selling both read "bullish." One is aggressive speculation; the other is income collection. Same number, different bets. This is why Lessons 1–3 came first: you need the vocabulary — sweeps, blocks, urgency — to interrogate the ratio instead of just reading it.
Try it yourself: find any bull/bear ratio and ask what's driving it — which flow types, which strikes, what urgency? If you can't answer, you don't have a signal yet. Just a number.
How to read it without getting faked out:
Tomorrow (Lesson 5): open interest vs volume — new position or housekeeping?
You can now read the ratio. Check it on any ticker, live: start your 7-day free trial:
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