Options market record
ISRG options flowcalls and puts bought each day.
On Oct 5, 2026, traders bought 1.6K ISRG call contracts ($2.9M) and 528 put contracts ($911.6K). Calls were 1.2× and puts were 0.5× their respective 20-day medians. The underlying closed at $406.89 and 30-day implied volatility was 43.8%. On the call-buy top 10 on 5 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 277, max 24.25K, latest 1.6K. Put contracts: min 217, max 16.51K, latest 528.
30-day implied volatility
30-day IV: min 20.9%, max 70.9%, latest 43.8%.
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 |
|---|---|---|---|---|
| Sep 8, 2026 | — | 9 | 4.0× | 3.6× |
| Jul 20, 2026 | — | 6 | 2.9× | 5.2× |
| Jul 17, 2026 | — | 4 | 5.0× | 9.6× |
| Jul 14, 2026 | — | 3 | 2.3× | 8.1× |
| May 11, 2026 | — | 3 | 3.4× | 9.2× |
| Apr 22, 2026 | 8 | — | 9.9× | 3.6× |
| Apr 21, 2026 | — | 4 | — | 6.8× |
| Oct 23, 2025 | 4 | — | 10.8× | 2.1× |
| Oct 22, 2025 | 4 | 6 | 13.7× | 8.0× |
| Apr 22, 2025 | — | 6 | 3.7× | 5.1× |
| Jan 24, 2025 | 5 | — | 11.5× | — |
| Jan 23, 2025 | 6 | — | 11.8× | — |
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