Applied Optoelectronics closed at USD 131.41, down 15.16%.

Despite the sharp single-day decline, large options activity displayed a distinctly bullish tilt. The standout transaction was a $0.30 million out-of-the-money call purchase, suggesting that at least one sizable trader views the drop as a longer-term opportunity rather than the start of sustained downside. Total bullish large-trade flow of $0.30 million was unmatched by any bearish large trades, leaving a net bullish imbalance of $0.30 million.

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Options Indicators

AAOI’s implied volatility is 109.34%, while its IV percentile stands at 31.47%, which places current option pricing in a broadly neutral volatility zone, though still near the lower end of that range. Combined with an IV/HV ratio of 0.73, implied volatility is running below historical realized volatility, suggesting the options are not being priced aggressively despite the still-high absolute IV level.

The Call/Put volume ratio is 1.46.

Large Trades

A CALL buy worth $0.30 million was the standout large trade, with 1,097 contracts purchased in the August 21, 2026 $148.00 call. With the stock reference price at $131.41, this strike sits out-of-the-money, making it a clearly bullish directional bet that requires further upside in AAOI over time to gain intrinsic value. The $0.30 million premium outlay points to a trader willing to pay for upside exposure rather than collect income, suggesting expectations for a meaningful advance into next year.

Overall sentiment is bullish. Total bullish large-trade flow reached $0.30 million versus $0.00 million bearish, for a net difference of $0.30 million in favor of the bulls. The directional bias is therefore clearly positive, and the tone of the flow is reinforced by the fact that the only highlighted large trade was an outright out-of-the-money call purchase, a structure typically associated with speculative upside positioning and confidence in higher prices rather than hedging or neutral premium-selling activity.

Strategy Reference

For traders seeking to monetize the still-high absolute IV without taking on unlimited upside risk, selling the August 2026 $200 call would carry a low assignment probability given the $148 long call focus, while a call spread such as buying the $148 call and selling the $200 call can reduce net premium and margin requirements relative to an outright long call.