Mizuho Financial Group Inc. options tape
Read from CBOE's delayed chain on 26 September 2026, with Mizuho Financial Group Inc. at $11.04: open interest within 90 days was 1,287 call and 1,170 put contracts, a put/call ratio of 0.91; the day's volume was 0 calls and 1,001 puts. The most call open interest sits at the $12.50 strike (1,134 contracts) and the most put open interest at $10.00 (1,033). The at-the-money straddle for 16 October 2026, 20 days out, was priced at 12.9% of spot. For 16 October 2026, implied volatility was 61.9% at the put 5% below spot and 40.9% at the call 5% above, +21.0 points.
Where the open interest sits
| Side | Strike | Open interest |
|---|---|---|
| Calls | $12.50 | 1,134 |
| Puts | $10.00 | 1,033 |
The strike with the most open interest on each side, across expiries within 90 days.
Open-interest builds against the previous day appear from the second daily read of this name.
Source
CBOE delayed quotes for MFG, the free 15-minute-delayed chain, read once a day. Figures describe positioning; they are not a forecast.
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