SanDisk Corporation closed at 1484.95 USD with a -0.96 % change.
SanDisk saw notable options activity driven by a single large put purchase worth $2.33 million, with 1,099 contracts bought at the 1200.0 strike expiring on 2026-09-25. The out-of-the-money long put signals bearish institutional hedging or a directional downside view, while the absence of offsetting bullish large trades suggests caution among major participants.
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Options Indicators
SNDK’s implied volatility stands at 73.83%, but its IV percentile is only 5.18%, which indicates that despite the high absolute IV level, current option pricing is still cheap relative to its own historical range and volatility is sitting on the low side. With an IV/HV ratio of 0.75, implied volatility is also running below realized volatility, reinforcing the view that current premiums are relatively inexpensive rather than overstretched.
The Call/Put volume ratio is 1.58.
Large Trades
A PUT buy worth $2.33 million was the standout large trade, with 1,099 contracts purchased at the 1200.0 strike expiring on 2026-09-25. With the stock reference price at 1484.95, this put was out of the money at the time of the trade, indicating the buyer was paying premium for downside protection or a bearish directional view over a longer-dated horizon. As a single-leg put purchase, the position reflects a clearly negative stance, using defined risk to position for a meaningful decline in SNDK or to hedge downside exposure.
Overall, the large-trade flow points to a bearish near-to-medium-term read on SNDK, because the only significant block activity was an out-of-the-money long put purchase. The absence of offsetting bullish large trades suggests institutional participants were focused on downside exposure rather than upside participation, which typically signals caution and a willingness to pay premium for protection or for a bearish speculative setup.
Strategy Reference
For a low assignment probability on the short side, a seller could consider the 1200.0 strike put expiring 2026-09-25, though given the bearish large-trade signal, a bear put spread using the 1400.0/1200.0 strikes may offer defined risk without posting excessive margin.
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