Western Digital closed at USD 558.30, rising 0.29%.
A single block of options trades dominated the session, as a massive $6.22 million bull call spread signaled a calculated bullish bet extending into mid-2026. The trade defined a clear upside corridor while keeping the entry cost efficient amid elevated option premiums.
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Options Indicators
WDC’s implied volatility is 112.97%, and with an IV percentile of 98.01%, current option pricing sits at the extreme high end of its recent range, indicating volatility is elevated and options are priced expensively. The IV/HV ratio of 0.99 suggests implied volatility is roughly in line with realized volatility, so while premiums are rich on a historical percentile basis, they are not dramatically detached from the stock’s actual recent movement. In this setup, long premium positions face a high entry cost, while defined-risk premium-selling structures or spreads may offer a more efficient way to express a view.
The Call/Put volume ratio is 0.57.
Large Trades
A bullish call spread worth $6.22 million stood out as the key large trade in WDC, built by buying 1,570 July 31, 2026 $600 calls and simultaneously selling 1,570 July 31, 2026 $630 calls. This is a classic bull call spread executed for a net debit of $6.22 million, with both strikes currently out of the money versus the $558.30 stock reference. Strategically, this structure expresses a moderately bullish directional view while capping upside above $630 in exchange for lowering the entry cost versus an outright call purchase. The trade suggests the buyer is looking for WDC to rise meaningfully over time, but within a defined upside target range rather than making an unlimited upside bet.
Overall, large-trade sentiment in WDC was clearly bullish, with total bullish flow of $6.22 million against bearish flow of $0.00 million, leaving a net difference of $6.22 million to the bullish side. The directional judgment is decisively positive, as the entire notable large-trade activity was concentrated in a premium-paid bullish call spread, indicating traders were willing to commit capital for upside exposure while still using a defined-risk, cost-efficient structure. That combination points to constructive sentiment with measured optimism rather than aggressive speculative chasing.
Strategy Reference
Given the extreme IV percentile, traders seeking premium collection could consider selling a put spread below the current price, such as a put credit spread with the short strike around a low-delta level, to benefit from elevated volatility while maintaining a defined-risk profile.
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