SK hynix closed at USD191.56, up 2.78%.

Despite the gain, large options trades showed a firmly bearish institutional bias. The tape was dominated by a $6.90 million synthetic short via a 2026 $190.00 call sale and put purchase, plus a $1.52 million double call sale at the same strike and year. Traders positioned for downside or capped upside, with only negligible bullish offsetting flow.

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Options Indicators

SK hynix currently has an implied volatility (IV) of 60.70%, while its IV percentile is just 3.77%, indicating that although the absolute IV level is not low, it sits near the bottom of its own historical range. In that context, volatility is on the low side and options appear cheaply priced rather than expensive. With the IV/HV ratio at 1.00, implied volatility is essentially in line with realized volatility, suggesting current option premiums are broadly consistent with the stock’s actual recent movement. The Call/Put volume ratio is 1.45.

Large Trades

A synthetic put structure with a $6.90 million combined size dominated the tape, created by selling the October 16, 2026 $190.00 call and buying the October 16, 2026 $190.00 put for a net credit of $70,000.00. With SKHY referenced at $191.56, the short call was in the money while the long put was out of the money, but together the position closely replicates a short stock exposure at the $190.00 level. Strategically, this is a distinctly bearish positioning trade that benefits from downside in the underlying while also bringing in a small upfront credit, signaling conviction that shares may weaken over the longer-dated horizon.

A $1.52 million same-side double call sale was the next key trade, structured as a call-selling combination at the October 2, 2026 $190.00 strike for a net credit of $1.52 million. Because both legs were sold calls at the same strike and expiration, this reads as a premium-collection call-selling strategy rather than a directional upside bet, with the trader leaning toward rangebound to mildly bearish price action and seeking to monetize elevated option premium. Since the strike sat below the $191.56 reference price, the calls were in the money, which reinforces the view that the seller was comfortable fading upside or expressing the expectation that SKHY will remain contained rather than stage a sustained rally.

Overall, the large-trade flow points clearly bearish. The session’s biggest order was a synthetic put that effectively mirrors short stock exposure, and the second-largest trade also leaned against upside through aggressive call premium collection at an in-the-money strike. While there was a small bullish put sale elsewhere in the broader flow, it was negligible relative to the dominant downside-oriented positioning, so the institutional tone in SKHY appears decisively cautious with expectations for weakness or, at best, limited upside.

Strategy Reference

For a defined-risk bearish trade without the margin of a naked short call, a bear call spread such as selling the October 16, 2026 $190.00 call and buying the $200.00 call can express a rangebound-to-lower view while capping loss; alternatively, sellers seeking low assignment probability could look further out-of-the-money above $210.00, though premium would be thinner given the low IV percentile.