SK hynix closed at USD 187.50, up 2.46%.

Options flow showed institutional conviction toward downside protection, led by a $2.00 million net-debit bear put spread targeting the 190.00/175.00 strike zone into October 2026 expiration. While the session also contained limited bullish premium-selling in lower-strike puts, the dominant order was decisively bearish in both size and structure, pointing to long-dated hedging rather than short-term speculation.

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Options Indicators

SKHY’s implied volatility stands at 61.96%, while its IV percentile is just 4.17%, which indicates that although the absolute IV level appears high, it is low relative to its own recent volatility history. With the IV/HV ratio at 1.00, implied volatility is essentially in line with historical volatility, suggesting options are currently cheaply priced rather than carrying a significant premium.

The Call/Put volume ratio is 1.60, showing more call contracts traded than puts in raw volume, yet the notional and net-debit flow from the dominant spread trade remains bearish. This contrast highlights the importance of reading structure and size rather than relying on simple call/put volume as a directional signal, especially when a single institutional spread can skew headline volume metrics.

Large Trades

A bear put spread with a net debit of $2.00 million was the standout large trade, expressing a clearly bearish view into the 2026-10-16 expiration. The position was built by buying 2,450 contracts of the 190.00 put, an in-the-money leg worth $2.98 million with the stock reference at 187.50, while simultaneously selling 1,750 contracts of the 175.00 put, an out-of-the-money leg worth $980 thousand. As a spread strategy, its size should be read by the preprocessed net debit rather than the gross leg totals, and that net debit shows the trader paid premium to position for downside while capping the maximum payoff below 175.00. Strategically, this is a defined-risk bearish directional bet that also reduces upfront cost versus a naked long put, suggesting the trader expects meaningful downside but not an unlimited collapse.

Overall, the large-trade flow points to a bearish conclusion for SKHY. The dominant order was a sizable put spread purchased for a meaningful net debit, which strongly outweighs the small bullish premium-selling activity seen in the lower-strike short puts. That pattern suggests market participants are primarily positioning for downside over the longer-dated horizon, while the minor bullish trades appear more consistent with limited premium collection at distant strikes rather than strong upside conviction.

Strategy Reference

For a low assignment probability setup, a seller could consider shorting the 150.00 put, which sits far below the 175.00 sold leg and outside the expected downside range of the institutional spread; if margin efficiency is a concern, a defined-risk put credit spread such as selling the 160.00/150.00 put spread may provide a more capital-friendly bearish-to-neutral alternative.