ARM Options
ARM $223.86 · Updated Oct 26, 4:00 PM ET
ARM is at $223.86. The nearest expiration, Oct 30, 2026 (4 days out), lists 93 strikes, with 13,987 calls and 9,043 puts traded in the latest session. At-the-money implied volatility is 83.7%. The at-the-money straddle prices a move of about $15.83 (7.1%) by expiration.
ARM Options Chain
ARM is at $223.86. The nearest expiration, Oct 30, 2026 (4 days out), lists 93 strikes, with 13,987 calls and 9,043 puts traded in the latest session. At-the-money implied volatility is 83.7%. The at-the-money straddle prices a move of about $15.83 (7.1%) by expiration.
ARM Gamma Exposure (GEX)
ARM total dealer gamma exposure is -$26M across all listed expirations. Negative GEX means dealers are net short gamma; their hedging tends to amplify price moves. The call wall is $250.00 and the put wall $220.00.
ARM Max Pain
ARM max pain for Oct 30, 2026 (4 days out) is $227.50, 1.6% above the current $223.86. 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 $250.00.
ARM Put/Call Ratio
Across every listed ARM expiration, the put/call ratio is 0.74 by volume and 1.31 by open interest. More calls than puts are trading. 341,550 puts and 260,883 calls are open in total.
ARM Implied Volatility
ARM at-the-money implied volatility is 83.7% for Oct 30, 2026 (4 days out). For Nov 27, 2026 it is 73.8%. Near-term volatility is priced above longer-dated volatility, an inverted term structure that usually accompanies an event or stress.
ARM Open Interest by Strike
Across all ARM expirations, the largest call open interest near the current $223.86 sits at the $200.00 strike (8,804 contracts) and the largest put open interest at $250.00 (19,696). 260,883 calls and 341,550 puts are open in total.
ARM Expected Move
The options market prices ARM to move about $15.83 (7.1%) by Oct 30, 2026, a range of $208.03 to $239.68. For Nov 27, 2026 (32 days out) the expected move is $38.97 (17.4%).