How the Put/Call Ratio Is Calculated
How the put/call ratio is calculated: the volume and open interest formulas, why index readings run higher, and what counts as a normal reading in 2026.
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How the put/call ratio is calculated: the volume and open interest formulas, why index readings run higher, and what counts as a normal reading in 2026.
Unusual options activity ranked from the full US options tape: which underlyings traded far above their own 20-session average, and how calls and puts split.