WDC closed at $533.04, a change of 15.37%.

Western Digital shares surged on heavy volume, yet the most notable options flow struck a decidedly cautious tone. A single trader initiated a large bear put spread valued at $1.49 million, positioning for a pullback from these elevated levels. This institutional-sized trade arrived as implied volatility spiked to the 92nd percentile, signaling that option premiums have become historically expensive amid the price rally.

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Options Indicators

WDC’s implied volatility stands at 106.75%, and with an IV percentile of 92.43%, current volatility is clearly in an elevated regime, indicating that options are priced expensively relative to their own historical range. The IV/HV ratio of 1.11 further suggests implied volatility is running modestly above realized volatility, reinforcing the view that the options market is embedding a premium for near-term uncertainty. The Call/Put volume ratio is 0.89.

Large Trades

A bearish put spread worth $1.49 million dominated the large-trade activity in WDC, with the trader buying 2,000 July 31, 2026 $490.00 puts and simultaneously selling 2,000 July 31, 2026 $470.00 puts. Both legs were out of the money versus the $533.04 reference stock price, making this a defined-risk bearish strategy aimed at profiting from a decline in the shares over time while capping the maximum payout below $470.00. Based on the trade details provided, the structure involved $1.00 million in premium paid for the long put leg and $0.49 million in premium received from the short put leg, resulting in a net premium of -$0.51 million, so this was a net-debit position expressing downside directional exposure rather than income generation.

Overall, the large-trade flow in WDC was clearly bearish. The sentiment was driven overwhelmingly by the sizable bear put spread, while the only bullish large trade was a much smaller short $355.00 put position that suggested limited willingness to collect premium at a far lower strike rather than a strong upside view. Taken together, the options flow points to institutional positioning for downside risk or a pullback in WDC rather than confidence in continued upside from current levels.

Strategy Reference

Traders who share the bearish outlook but prefer a neutral-to-bullish income strategy can consider selling the July 31, 2026 $355.00 put, which sits far out of the money with a low probability of assignment, while those seeking a defined-risk bearish position with limited margin requirements may find the put spread structure already demonstrated in the large trade to be a suitable template.