NBIS Long — NBIS breaking to all-time highs on $643M Eigen AI acNebius Group N.V. Class ANASDAQ:NBISmnktrdSetup: On the 4h chart, NBIS has been in a powerful uptrend since the March lows (~$90), making a series of higher highs and higher lows all the way to all-time highs above $170. Today's surge is a clean catalyst-driven breakout through the prior high cluster around $165-167, with a large-range expansion bar on well-above-average volume — the strongest volume session since mid-April. The 1h shows price gapping up at the open, holding the $168-170 level on the first pullback, and now pushing higher. The breakout shelf from the gap open is the key short-term support zone. Flow: The catalyst is concrete — a $643M acquisition of Eigen AI in the AI infrastructure space, directly aligned with the dominant sector theme today (semis and AI names leading). Options flow is heavily skewed to calls: call/put premium ratio is 6.8x and the largest single block was a $1.24M buy of the May-29 155C on the ask, followed by multiple repeat buys totaling over $4M in bullish call premium. The $180C and $190C strikes for May-15 are also seeing accumulation, suggesting institutional participants are targeting a move into the $180-190 range. The only caution is a notable $535K BTO put buy at the May-08 167.5P on the ask, flagged as bearish — likely short-term hedge activity from an existing long rather than a directional fade. Net premium sentiment remains decisively bullish. FOMC's Williams speaking shortly introduces intraday risk, but the catalyst here is stock-specific. Plan: Stop is placed below the intraday breakout shelf and the prior consolidation range just under $163 — a close back through that level would invalidate the gap-and-go thesis and suggest distribution rather than continuation. Target is the $185 area, which is the next visible option-chain resistance cluster and aligns with the $190C OI buildup; this also represents roughly a 2:1 R/R from entry. Insider selling is heavy and analyst mean target is near current price, so this is a momentum/catalyst trade only — not a multi-week hold. Williams-driven vol is the primary near-term risk. 📍 Entry: 170.75 🛑 Stop: 163.00 🎯 Target: 185.00 ⚖️ R:R: 1.84