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Options Indicators

Western Digital Corporation closed at $477.22, rising 2.23%. The trading day featured significant options activity, with a large out-of-the-money put sale capturing attention.

WDC’s implied volatility is 117.51%, and with an IV percentile of 100.00%, current option volatility sits at the extreme high end of its historical range, indicating that options are priced expensively rather than cheaply. The IV/HV ratio of 1.10 further suggests implied volatility is running modestly above realized volatility, showing the market is embedding a premium for forward uncertainty and that option buyers are paying up for exposure at current levels. The Call/Put volume ratio is 0.94.

Large Trades

A PUT sale worth $1.20 million stood out as the day’s key large trade, with 1,500 contracts of the July 31, 2026 $355.00 put sold. With the stock reference price at $477.22, this strike sits out of the money, making the trade a bullish cash-secured-put style expression or a premium-collection strategy that benefits if WDC remains above $355.00 into expiration. The seller is effectively taking on downside assignment risk at a much lower level while expressing confidence that the shares will hold comfortably above the strike, and the out-of-the-money positioning suggests a willingness to monetize elevated downside premium rather than an urgent need for protection.

Overall sentiment in WDC’s large-trade flow was clearly bullish, with total bullish premium at $1.20 million versus bearish premium at $0.00 million, leaving a net bullish difference of $1.20 million. The directional judgment is decisively positive, as the entire notable flow was concentrated in out-of-the-money put selling, a structure typically associated with premium income generation and constructive downside confidence rather than defensive positioning. In short, the large-trade activity suggests investors were comfortable underwriting lower-strike downside risk and leaned toward a favorable outlook on WDC.

Strategy Reference

For sellers aiming for a low assignment probability, selecting a put strike further OTM, such as $300.00, could be considered; alternatively, a bear put spread could be employed to define risk and reduce margin requirements for those with a more cautious outlook.