ARM closed at 306.34 USD, down 7.88%, after opening at 319.23 USD and moving between 303.65 USD and 326.00 USD during the session.
The most notable large options trade was a call sale at the 340.0 strike expiring on 2026-09-25, worth 41,100.00 USD across 1,245 contracts. With the stock well below that strike, the flow leaned bearish-to-cautious, favoring premium collection over upside bets.
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Options Indicators
ARM’s implied volatility is 79.56%, and with an IV percentile of 70.92%, current option volatility sits in an elevated range, indicating that options are priced expensively relative to their own recent history. At the same time, the IV/HV ratio of 0.94 suggests implied volatility is slightly below realized volatility, which tempers the richness somewhat, but overall premiums still lean toward the expensive side given the high percentile reading.
The Call/Put volume ratio is 2.02.
Large Trades
A call sale worth 41,100.00 USD was the standout large trade, with 1,245 contracts sold at the 340.0 strike expiring on 2026-09-25. With ARM referenced at 306.34, this call sits out of the money, making it a bearish-to-cautious income-oriented position that leans on the stock staying below the strike through expiration. Strategically, selling an OTM call typically reflects either a view that upside will be capped or a willingness to collect premium against a subdued price outlook rather than chase further gains.
Overall, the large-trade flow in ARM was clearly bearish. The session’s notable activity was entirely concentrated in call selling, with no offsetting bullish large orders showing up in the bulk flow, which points to restrained expectations for upside and a preference for premium collection over directional upside exposure. Taken together, the large-order positioning suggests the market is leaning toward limited near-term appreciation and a more cautious stance on ARM.
Strategy Reference
For a low assignment probability, a seller could consider the 360.0 strike call expiring in the same September 2026 cycle, or use a bear call spread such as selling 340.0 and buying 360.0 to cap margin requirements while still collecting premium.