Western Digital closed at $289.78, up 9.86%, after opening at $271.28, ranging between $269.87 and $293.40, with roughly 8.42 million shares changing hands.
Large options flow was decisively bearish, led by a $2.05 million net-debit bear put spread involving 3,900 contracts each of the 290.0 put expiring 2026-11-20 and the 210.0 put expiring 2027-03-19. A much smaller $216,600 out-of-the-money call purchase at the 375.0 strike expiring 2026-11-27 provided only a modest bullish offset, leaving institutional positioning skewed firmly to the downside.
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Options Indicators
Western Digital currently has an implied volatility of 81.82%, while its IV percentile stands at 51.39%, which places current volatility expectations in a neutral historical range. In other words, although the absolute IV level is high, relative to its own past pricing this suggests options are neither especially cheap nor especially expensive at the moment. The IV/HV ratio of 0.83 also indicates implied volatility is running below recent realized volatility, suggesting the market is not assigning a premium far above what the stock has actually been delivering.
The Call/Put volume ratio is 1.04, which points to roughly balanced overall options activity on the surface, but this ratio does not capture the large-trade bearish skew that dominates institutional positioning.
Large Trades
A bearish put spread with a net debit of $2.05 million was the dominant large trade, combining the purchase of 3,900 contracts of the 290.0 put expiring 2026-11-20 and the sale of 3,900 contracts of the 210.0 put expiring 2027-03-19. This is a classic bear put spread structure, established for a net debit, which signals a directional downside bet rather than premium collection. The long 290.0 put was in the money versus the $289.78 reference stock price, while the short 210.0 put was out of the money, showing the trader is positioning for weakness in Western Digital but also defining part of the payoff profile by selling lower-strike downside exposure. The use of a spread, rather than an outright put purchase, suggests a bearish view expressed with some cost control and a targeted downside range in mind.
A call purchase worth $216,600 was the other highlighted large trade, consisting of 1,416 contracts of the 375.0 call expiring 2026-11-27. With the strike well above the $289.78 reference stock price, this call was out of the money and reflects a bullish directional bet on a substantial upside move over time. Even so, the overall large-trade picture remains clearly bearish: the flow was dominated by the much larger bear put spread, while the bullish call buying was comparatively small and speculative in nature. Taken together, the bulk-order activity points to institutional sentiment leaning decisively negative on Western Digital, with traders primarily positioning for downside while only a limited amount of capital was committed to upside participation.
Strategy Reference
For a lower assignment probability on a bearish view, a seller could consider the 210.0 put expiring 2027-03-19, which is far out of the money relative to the $289.78 close; alternatively, a put credit spread using that same 210.0 strike as the short leg and a lower long put would cap margin while still aligning with the dominant downside flow.