XBI Options
XBI $150.47 · Updated Oct 26, 4:00 PM ET
XBI is at $150.47. The nearest expiration, Oct 30, 2026 (4 days out), lists 66 strikes, with 778 calls and 4,021 puts traded in the latest session. At-the-money implied volatility is 39.8%. The at-the-money straddle prices a move of about $5.05 (3.4%) by expiration.
XBI Options Chain
XBI is at $150.47. The nearest expiration, Oct 30, 2026 (4 days out), lists 66 strikes, with 778 calls and 4,021 puts traded in the latest session. At-the-money implied volatility is 39.8%. The at-the-money straddle prices a move of about $5.05 (3.4%) by expiration.
XBI Gamma Exposure (GEX)
XBI total dealer gamma exposure is -$14M across all listed expirations. Negative GEX means dealers are net short gamma; their hedging tends to amplify price moves. The gamma flip is $151.98, with spot 1.0% below it. The call wall is $175.00 and the put wall $150.00.
XBI Max Pain
XBI max pain for Oct 30, 2026 (4 days out) is $151.00, 0.4% above the current $150.47. That is the settlement price at which the open contracts on that date would pay holders the least. For Nov 27, 2026, max pain is $154.00.
XBI Put/Call Ratio
Across every listed XBI expiration, the put/call ratio is 3.77 by volume and 1.11 by open interest. More puts than calls are trading, a defensive tilt. 270,757 puts and 244,314 calls are open in total.
XBI Implied Volatility
XBI at-the-money implied volatility is 39.8% for Oct 30, 2026 (4 days out). For Nov 27, 2026 it is 32.5%. Near-term volatility is priced above longer-dated volatility, an inverted term structure that usually accompanies an event or stress.
XBI Open Interest by Strike
Across all XBI expirations, the largest call open interest near the current $150.47 sits at the $165.00 strike (14,990 contracts) and the largest put open interest at $140.00 (24,677). 244,314 calls and 270,757 puts are open in total.
XBI Expected Move
The options market prices XBI to move about $5.05 (3.4%) by Oct 30, 2026, a range of $145.42 to $155.52. For Nov 27, 2026 (32 days out) the expected move is $11.55 (7.7%).