ARM closed at $289.66, down 1.37%.

Institutional options flow in ARM was dominated by a single large net-credit call structure expiring in 2026, pointing to cautious positioning against a sharp rally. The standout trade combined short and long call spreads for a net credit of $197 thousand, while the broader volume profile leaned call-active with a Call/Put ratio of 1.56. This block activity suggests institutional interest in collecting premium from a contained upside path rather than chasing bullish momentum.

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Options Indicators

ARM’s implied volatility is 76.10%, and its IV percentile stands at 67.73%, which places current volatility conditions in a broadly neutral zone rather than an extreme one. Even though absolute IV is high, the percentile suggests current option pricing is not especially stretched relative to ARM’s own recent history, so options appear fairly priced overall rather than distinctly cheap or expensive. The IV/HV ratio of 0.81 also indicates implied volatility is running below realized volatility, suggesting the market is not assigning an aggressive premium versus recent actual movement.

The Call/Put volume ratio is 1.56.

Large Trades

A call spread structure with a net credit of $197 thousand was the standout large trade, built as a four-leg call combination expiring on 2026-10-02. Specifically, the trader sold the 292.50 call and bought the 297.50 call, while also buying the 322.50 call and selling the 332.50 call, with all four legs out of the money against the current stock reference price of 289.66. This is a call spread strategy combining a short call spread and a long call spread, executed for a net credit of $197 thousand. The structure suggests a premium-collection approach with a bearish-to-range-bound bias, as the trader is willing to take in premium while positioning for ARM to remain contained rather than stage a strong upside breakout through the lower short-call strike area.

Overall, the large-trade flow points to a mildly bearish outlook on ARM. The only institution-sized order visible in the bulk activity was a net-credit call spread combination, and its design reflects a preference for collecting premium from capped upside expectations rather than paying up for outright bullish exposure. Taken together, the block-trade profile indicates cautious sentiment, with positioning that leans against a sharp near-term rally and favors a stock path that stays below key upside levels.

Strategy Reference

For a defined-risk premium collection approach, traders could consider selling a short call spread such as the 300.00/305.00 call spread, choosing an out-of-the-money strike above the key 292.50 level to maintain a lower assignment probability while keeping margin requirements relatively contained.