Options market record
RIO options flowcalls and puts bought each day.
On Oct 5, 2026, traders bought 1.97K RIO call contracts ($316.2K) and 1.01K put contracts ($254.7K). Calls were — and puts were — their respective 20-day medians. The underlying closed at $95.65 and 30-day implied volatility was 33.1%. On the call-buy top 10 on 7 of 473 trading days since Nov 11, 2024.
Each point is one trading day since Nov 11, 2024. Latest rankings
Daily contracts bought
Call contracts: min 133, max 457.4K, latest 1.97K. Put contracts: min 57, max 10.34K, latest 1.01K.
30-day implied volatility
30-day IV: min 26.4%, max 49.2%, latest 33.1%.
Days in a top-10 list
Ranked by contracts bought today compared with the stock's own median over the previous 20 trading days.
| Date | Call-buy rank | Put-buy rank | Call vs normal | Put vs normal |
|---|---|---|---|---|
| Mar 5, 2026 | 1 | — | 278.4× | — |
| Feb 18, 2026 | — | 10 | 0.5× | 5.9× |
| Dec 22, 2025 | 7 | — | 7.1× | — |
| Oct 13, 2025 | 9 | — | 8.9× | — |
| Aug 14, 2025 | 1 | — | 102.1× | — |
| Aug 11, 2025 | 6 | — | 9.9× | — |
| Mar 6, 2025 | 1 | — | 49.3× | — |
| Jan 28, 2025 | 6 | — | 7.2× | — |
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