NEBIUS closed at $159.17, down 7.23 percent after opening at $164.75 and fluctuating between $155.73 and $167.50.
Large-options activity was dominated by a $25.78 million net-credit put spread executed in the 2026-10-23 expiry, reflecting heavy short in-the-money put exposure. A $12.05 million net-debit double call buy in the 230.0 calls expiring 2027-03-19 provided selective bullish speculation, but failed to offset the broader defensive, put-heavy institutional tone visible across displayed block trades.
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Options Indicators
NEBIUS has an implied volatility of 111.33%, and with an IV percentile of 74.10%, current option volatility sits in an elevated range, indicating that options are priced expensively relative to the stock’s own recent history. The IV/HV ratio of 1.44 further suggests implied volatility is running meaningfully above realized volatility, showing that the options market is embedding a sizable premium for expected movement.
The Call/Put volume ratio is 1.24.
Large Trades
A $25.78 million net-credit four-leg put spread was the largest displayed trade, built entirely in the 2026-10-23 expiry and centered on deep in-the-money strikes versus the $159.17 stock reference. The structure sold the 200.0 put, bought the 205.0 put, sold the 210.0 put, and sold the 207.5 put, making it a multi-leg put spread strategy rather than a synthetic position, and its size should be read as the stated $25.78 million net credit. Because the trade contains both long and short puts and was opened for a substantial credit, it points to a premium-collection stance with downside exposure management embedded in the structure, but the heavy concentration of short in-the-money puts also suggests willingness to take on significant bearish-to-defensive risk around lower price outcomes rather than expressing outright upside optimism.
A $12.05 million net-debit same-direction double call buy was the second displayed trade, consisting of two purchases of the 230.0 call expiring 2027-03-19, and both legs were out-of-the-money at the time of execution. This is not a spread but a directional long-call accumulation, and the $12.05 million debit reflects a clear premium-paid bet on a large upside move or strong volatility-driven rally over time, with the trader accepting upfront cost in exchange for convex bullish exposure well above the current stock price.
Overall, the large-trade flow leans bearish. Although there was a meaningful long-call purchase that shows some traders are positioning for a sharp upside move, the broader block activity was dominated by put-heavy structures and net-credit positioning, which is more consistent with defensive, downside-oriented, or premium-harvesting activity than with confident bullish accumulation. Taken together, the figures suggest institutional sentiment is tilted to caution and downside risk, with selective upside speculation present but not strong enough to overturn the prevailing bearish tone.
Strategy Reference
Given elevated IV percentile and bearish block flow, sellers looking for low assignment probability could target the 130.0 put expiring 2027-03-19, while traders preferring defined-risk bearish positioning may use a 160.0/140.0 put debit spread to avoid large uncovered margin requirements.
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