SMCI Falls 17% on the Week as Rosenblatt Lifts Target

Super Micro Computer makes AI server infrastructure, and right now it is caught between a bullish analyst note filed this morning and a stock that just dropped 17% in five days to $32.47.

The Street is not uniformly negative. Rosenblatt raised its price target to $57 from $51 this morning, maintaining a Buy, lifting its view by 12% even as the stock fell. That is a meaningful divergence: the mean analyst target across the coverage universe sits at $43.27, roughly 33% above the current price. Not all of that consensus is bullish, however. Citigroup raised its target to $45 earlier this month while holding a Neutral rating, and Goldman Sachs, which carries a Sell, nudged its target to $34 after the August earnings print. The direction of recent analyst activity has been uniformly upward on targets, but the distribution of ratings remains split, with the sell-side broadly acknowledging the growth story while disagreeing sharply on whether the margin trajectory justifies optimism. The bull case rests on a $60-billion order backlog that is roughly 70% AI-linked and FY27 revenue guidance of $65 billion to $72 billion. The bear case is that Q1 gross margin is guided to compress to 10.4% to 10.8% from 17.6% in the most recent quarter, a single customer accounted for 28% of FY26 revenue, and AI platforms slid to 60% of sales from over 80% the quarter before.

Short positioning has barely changed despite the price drop. Short interest edged up fractionally this week to 85.5 million shares, 14.3% of the free float. That is consistent with what the previous note described: the big unwind from the September 15 peak of 96.9 million shares has slowed but not reversed. Shorts covered aggressively through late September and early October, trimming roughly 12 million shares, and have since stabilised. The borrow market reflects no tension. Availability is running at 321%, meaning there are more than three shares available to lend for every one currently borrowed, well above the 52-week tightest reading of 85%. Borrowing costs have crept up to 0.51%, a 10% rise on the week, but remain negligible in absolute terms. The lending market is under no stress, and there is no mechanical pressure forcing anyone's hand.

The insider register adds a complication. CEO Charles Liang and director Sara Liu Liang each sold 100,000 shares at $45.02 on October 7, three weeks before the stock traded at $32.47. Both sales were executed under pre-arranged 10b5-1 plans, which reduces their informational weight, and the September 3 to 4 transactions followed the same pattern at prices of $36.60 to $40.00. Combined, the two have sold roughly 600,000 shares over the past 90 days for a net value of approximately $24.4 million. These are programmatic sales, not discretionary exits, but the timing, with the stock now well below those execution prices, means the insider selling has been at notably better prices than the current market.

Institutional flows have been moving in the other direction. BlackRock added 4.3 million shares in the quarter to September 30, Vanguard entities collectively added over 7 million shares, and State Street added 2.6 million. Those are the passive and quasi-passive buyers stepping in as the price fell through the period. Jane Street, which had briefly crossed 8.5% of the class, has since trimmed to 7.4% per its most recent 13G/A filing. No 13D activists are on the register, and no holder appears to be agitating for change.

Valuation is now undemanding by most measures. The price-to-earnings multiple has compressed to 6.3 times, down 1.8 turns over the past month. The EV/EBITDA ratio sits at 4.6 times. Those are low numbers for a company guiding toward $65 billion or more in revenue next year. The factor profile shows a high EV/EBIT percentile rank of 91, reflecting cheapness on that metric, and a 90-day EPS momentum score in the 95th percentile, meaning estimates have been revised sharply higher. The short score of 57.4 is moderate and has drifted slightly lower over the past two weeks from a recent high of 58.5, consistent with the gradual short interest unwind. Options are calm: the put/call ratio at 0.79 is fractionally below its 20-day average of 0.80, with no meaningful skew toward protection.

ORTEX puts the probability of SMCI joining the CRSP US Small index at 28% at the December 2026 Quarterly Review. The stock is 0.9% above the entry price line of $32.17, and at $32.47 today it is sitting almost exactly on that threshold. The rank date is December 4, with a trade date of December 22 if the addition is confirmed. Estimated buying flow from index trackers would be $298 million, about 0.2 days of normal volume. That is a mechanical footnote rather than a primary driver, but given how close the stock is to the line, the December review is worth tracking alongside the next earnings report, scheduled for November 3.