Stats Options, shorts and positioning Put call ratio

Cboe publishes five put call ratios, and they disagree

DateContextEquityIndexTotal
12 Mar 2020COVID crash1.281.411.46
16 Mar 2020minus 12% session1.101.251.28
27 Jan 2021meme stock peak0.401.150.73
16 Jun 2022bear market low0.861.501.24
5 Aug 2024yen carry unwind0.771.551.28
7 Apr 2025tariff selloff0.631.581.20
30 Jun 2026calm baseline0.641.010.88
31 Jul 2026latest0.631.010.91

On 7 April 2025 the equity ratio was identical to a calm day while the index ratio was near its sample high. The two measure different behaviour. Source: Cboe daily market statistics.

The put call ratio divides put volume by call volume. Cboe publishes at least five of them, and on the tariff selloff of 7 April 2025 the equity ratio read 0.63 while the index ratio hit 1.58. Single stock options speculate; index options hedge.

0.63Equity ratio, 31 Jul 2026
1.01Index ratio, same day
42.3%Index share of Cboe volume
4 Oct 2019Cboe history stops

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