Petrobras - Petroleo Brasileiro SA options tape
Read from CBOE's delayed chain on 26 September 2026, with Petrobras - Petroleo Brasileiro SA at $20.46: open interest within 90 days was 753,649 call and 499,722 put contracts, a put/call ratio of 0.66; the day's volume was 19,505 calls and 5,269 puts (0.27). The most call open interest sits at the $24.00 strike (184,844 contracts) and the most put open interest at $13.00 (68,855). The at-the-money straddle for 2 October 2026, 6 days out, was priced at 4.3% of spot. For 16 October 2026, implied volatility was 48.6% at the put 5% below spot and 48.9% at the call 5% above, -0.3 points.
Where the open interest sits
| Side | Strike | Open interest |
|---|---|---|
| Calls | $24.00 | 184,844 |
| Puts | $13.00 | 68,855 |
The strike with the most open interest on each side, across expiries within 90 days.
Strikes where the day's volume was at least twice the open interest
| Contract | Volume | Open interest before | Premium traded |
|---|---|---|---|
| 30 October 2026 call at $22.00 | 928 | 291 | $73,776 |
| 30 October 2026 call at $24.00 | 2,414 | 131 | $62,764 |
| 30 October 2026 put at $19.50 | 725 | 12 | $61,988 |
Volume of at least 200 contracts and at least twice the open interest, with at least $25,000 of premium at the mid; contracts expiring the same day are left out. Premium is mid price times volume times 100.
Open-interest builds against the previous day appear from the second daily read of this name.
Source
CBOE delayed quotes for PBR, the free 15-minute-delayed chain, read once a day. Figures describe positioning; they are not a forecast.
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