SK hynix closed at USD 154.38, rising 8.17%.
The stock’s strong daily gain was met with heavy institutional options activity, dominated by bearish call-selling flows. A single out-of-the-money call sale worth US$5.75 million overwhelmed a US$6.48 million bullish synthetic long, signaling that large traders were primarily focused on capping upside and harvesting premium rather than chasing the rally.
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Options Indicators
SKHY’s implied volatility is 120.52%, while its IV percentile stands at 31.25%, which suggests current volatility is sitting in a broadly neutral zone, just above the threshold where options would be considered especially cheap. With the IV/HV ratio at 0.74, implied volatility is running below historical volatility, indicating option pricing is not particularly stretched despite the high absolute IV level and may be relatively reasonable compared with the stock’s realized movement. The Call/Put volume ratio is 1.17.
Large Trades
A bullish synthetic long position worth US$6.48 million stood out as one of the day’s key combination trades, built by buying 1,593 December 18, 2026 200.0 calls for US$3.52 million while simultaneously selling 1,593 December 18, 2026 120.0 puts for US$2.96 million. Both legs were out of the money versus the reference stock price of 154.38, and the structure carries a net premium of negative US$0.56 million, making it a net debit trade. Strategically, a synthetic long is used to create bullish directional exposure that behaves similarly to owning the stock, allowing the trader to position for upside over the longer term while accepting downside risk through the short put leg.
A bearish single-leg call sale worth US$5.75 million was the other highlighted large trade, with 2,600 contracts sold in the December 18, 2026 210.0 call. This strike was out of the money relative to the 154.38 reference price, and the trade reflects a premium-collection stance that benefits if SKHY remains below 210.0 through expiration or if upside stays limited. Selling an out-of-the-money call in this size typically signals a cautious-to-bearish outlook, as the trader is monetizing volatility and effectively expressing the view that a major rally beyond the strike is unlikely.
Overall, large-trade sentiment in SKHY was bearish. Although there was one notable bullish synthetic long that showed willingness to add long-dated upside exposure, the broader flow was dominated by call-selling activity, including multiple sizable bearish trades that point to income generation and expectations for capped upside. Taken together, the pattern suggests institutional traders were more focused on fading rallies and harvesting premium than on positioning for a strong advance, leaving the overall options tone clearly negative.
Strategy Reference
Given the bearish institutional flow and elevated implied volatility, traders seeking to generate income could consider selling the December 18, 2026 210.0 call, which aligns with the day’s largest bearish trade and offers a low probability of assignment above the strike.
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