Options market record
ZSL options flowcalls and puts bought each day.
On Oct 5, 2026, traders bought 45 ZSL call contracts ($7.6K) and 8 put contracts ($425). Calls were — and puts were — their respective 20-day medians. The underlying closed at $27.03 and 30-day implied volatility was 79.2%. On the call-buy top 10 on 4 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 0, max 135.16K, latest 45. Put contracts: min 0, max 20.66K, latest 8.
30-day implied volatility
30-day IV: min 28.3%, max 1735.2%, latest 79.2%.
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 |
|---|---|---|---|---|
| Jun 5, 2026 | 10 | — | 5.7× | — |
| Jan 30, 2026 | 5 | — | 10.3× | 8.1× |
| Jan 26, 2026 | 8 | — | 10.3× | 5.2× |
| Jan 5, 2026 | 6 | — | 16.5× | — |
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