Itaú Unibanco Holding S.A. options tape
Read from CBOE's delayed chain on 26 September 2026, with Itaú Unibanco Holding S.A. at $8.11: open interest within 90 days was 16,189 call and 8,190 put contracts, a put/call ratio of 0.51; the day's volume was 223 calls and 271 puts (1.22). The most call open interest sits at the $8.00 strike (5,433 contracts) and the most put open interest at $8.00 (7,670). The at-the-money straddle for 16 October 2026, 20 days out, was priced at 8.9% of spot. For 16 October 2026, implied volatility was 47.4% at the put 5% below spot and 44.6% at the call 5% above, +2.8 points.
Where the open interest sits
| Side | Strike | Open interest |
|---|---|---|
| Calls | $8.00 | 5,433 |
| Puts | $8.00 | 7,670 |
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 ITUB, the free 15-minute-delayed chain, read once a day. Figures describe positioning; they are not a forecast.
The same record on your computer
GreekSoup is also a free program for your own computer. It reads these same filings for the names you follow, refreshed as they land, with no account. One pasted line installs it.