MSCI Inc. options tape
Read from CBOE's delayed chain on 23 September 2026, with MSCI Inc. at $558.97: open interest within 90 days was 1,423 call and 2,738 put contracts, a put/call ratio of 1.92; the day's volume was 129 calls and 220 puts (1.71). The most call open interest sits at the $580.00 strike (215 contracts) and the most put open interest at $520.00 (456). The at-the-money straddle for 16 October 2026, 23 days out, was priced at 5.6% of spot. For 16 October 2026, implied volatility was 27.5% at the put 5% below spot and 25.3% at the call 5% above, +2.2 points.
Where the open interest sits
| Side | Strike | Open interest |
|---|---|---|
| Calls | $580.00 | 215 |
| Puts | $520.00 | 456 |
The strike with the most open interest on each side, across expiries within 90 days.
Source
CBOE delayed quotes for MSCI, the free 15-minute-delayed chain, read once a day. Figures describe positioning; they are not a forecast.
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