ARM closed at USD 275.29, decreasing 6.48 % from the previous close.

The session’s most notable options flow was a large, net-credit call spread package worth $453,000, involving out-of-the-money calls across two 2026 expirations. The structure sold upside premium rather than buying directional exposure, with all legs above the underlying close. Overall large-trade flow leaned bearish-to-neutral, suggesting sophisticated traders are comfortable collecting income while the stock consolidates or pulls back after the sharp single-day decline.

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Options Indicators

ARM’s implied volatility stands at 72.21%, while its IV percentile is 57.77%, which places current volatility conditions in a neutral range rather than an extreme one. Although the absolute IV level is high, the percentile suggests this is relatively typical versus ARM’s own recent volatility history, so options are not especially cheap or especially expensive at current levels. With the IV/HV ratio at 0.77, implied volatility is also running below historical volatility, indicating option premiums are somewhat conservative relative to realized movement.

The Call/Put volume ratio is 1.25.

Large Trades

A call spread package with a net credit of $453,000 was the standout large trade in ARM, structured as a four-leg calendar-style call combination. The trade sold 1,678 contracts of the October 16, 2026 $292.50 call and bought 1,678 contracts of the October 16, 2026 $302.50 call, while also selling 1,678 contracts of the October 9, 2026 $335.00 call and buying 1,678 contracts of the October 9, 2026 $325.00 call. Since the structure contains both buy calls and sell calls, it is best viewed as a spread strategy rather than a synthetic position, and its size should be measured by the provided net credit of $453,000. With all four strikes above the $275.29 reference stock price, every leg was out of the money, pointing to a premium-collection trade that also expresses a cautious bearish-to-neutral view, as the trader appears willing to cap upside while collecting income from elevated call strikes across two expirations.

Overall, the large-trade picture for ARM leans bearish. The only highlighted block was a net-credit call spread structure built entirely with out-of-the-money calls, which typically reflects a view that the stock is unlikely to rally aggressively toward those upper strikes in the near term. The positioning suggests traders are more interested in harvesting premium and fading upside than in chasing further gains, leaving the bulk-order sentiment tilted moderately negative.

Strategy Reference

For a defined-risk alternative to the large net-credit structure, a bear call spread at the $335.00/$325.00 strikes in the October 9, 2026 expiration offers a similar premium-collection profile with lower margin requirements, while a more conservative seller may look to short the $335.00 call alone for a low assignment probability given the distance from spot.