NEBIUS closed at USD 231.88, down 2.30 %.

A single block in NEBIUS dominated the session, with a trader establishing a $6.90 million synthetic short via selling calls and buying puts at the $230 strike expiring November 20, 2026. The net credit of $287 thousand and the close proximity to spot underscore a conviction-driven bearish stance rather than a modest hedge, setting the tone for a decisively negative interpretation of the day's options activity.

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Options Indicators

NEBIUS currently has an implied volatility of 86.70%, while its IV percentile is just 8.37%, which indicates that although the absolute level of implied volatility is high, it sits near the lower end of its own historical range. In that context, options are relatively cheaply priced and volatility conditions are on the low side versus what the name has typically carried. With the IV/HV ratio at 1.34, implied volatility is still running above realized volatility, suggesting the options market is pricing in somewhat more movement than the stock has recently delivered. The Call/Put volume ratio is 1.51.

Large Trades

A bearish synthetic put position with a net credit of $287 thousand stood out as the key large trade in NBIS. This combination paired the sale of 1,150 Nov. 20, 2026 $230.00 calls, an in-the-money leg worth $3.60 million, with the purchase of 1,150 Nov. 20, 2026 $230.00 puts, an out-of-the-money leg worth $3.31 million. As a synthetic short structure, it expresses a clear downside directional view, effectively positioning for weakness in the stock while collecting upfront premium through the net credit, suggesting the trader was willing to lean bearish at a strike very close to the current stock reference of $231.88.

Overall, the large-trade flow in NBIS was clearly bearish. The fact that the only highlighted block was a sizable synthetic put established through selling calls and buying puts points to institutional positioning for downside exposure rather than hedging modestly or chasing upside. With the dominant activity centered on a near-at-the-money strike and extending out to late 2026, the flow suggests conviction in a longer-dated negative outlook for the stock.

Strategy Reference

For a low assignment probability on the call side, a seller could look at a shorter-dated out-of-the-money strike above the recent high; alternatively, a bear put spread using the same long-dated $230/$200 strikes expresses downside without the margin burden of a synthetic short.