OKLO has shed 24% in a single week — and shorts are quietly adding as the borrow market tightens to its most constrained level in months.
The short interest story has reversed sharply since last week's note. The previous article described shorts reducing exposure into the May 12 earnings print. That has now changed. Short interest has climbed back to 18.6% of the free float, up 3.3% over the week and 19.5% over the past month. Availability has plunged from roughly 27% a week ago to just 12% today — the tightest the lending pool has been since early May. The 52-week low on availability is 4.3%, so there is room for further tightening. Cost to borrow remains oddly cheap at under 1%, suggesting the new short positions are being put on easily despite the tighter pool. The ORTEX short score holds at 69.3, ranking in the third percentile of the universe on short score rank — a persistently bearish positioning signal.
Options tell a different story from the shorts. The put/call ratio has actually drifted lower, to 0.66 — about one standard deviation below its 20-day average of 0.70. Call open interest is dominating, which implies some investors are positioning for a rebound after the week's selloff rather than pressing the bearish case further. That divergence is notable: shorts are rebuilding while options traders lean toward the upside.
The Street is split but the bulls carry the higher targets. Wolfe Research initiated at Peer Perform on May 19, a cautious entry. JP Morgan, which initiated just last week at Neutral with an $83 target, is now above the stock's $55.88 close. Citigroup raised its target to $76 while maintaining Neutral. On the other side, Wedbush and Cantor Fitzgerald held their bullish stances — $110 and $122 targets respectively. The analyst consensus is Hold across seven firms. Goldman Sachs and UBS both carry Neutral ratings with targets of $65 and $60, both set in late March; at current levels, even the cautious targets now imply meaningful upside. The analyst recommendation divergence factor scores in the 99th percentile — an unusually wide spread between bulls and bears for a single stock. Valuation is effectively meaningless for a pre-revenue company: the price/book has compressed from roughly 6.9x to 5.0x over the past month as the stock fell, and both PE and EV/EBITDA are deeply negative.
The May 12 earnings print handed shorts their catalyst. The stock fell 10.8% on the day and 28.5% over the following five days — the only earnings event in the history data. That reaction pattern is now in the record. The next earnings event is scheduled for June 3, which gives the current short rebuild a defined timeline.
The key tension into June 3 is whether the rebuilding short position represents genuine conviction on execution risk — the bear case centres on $2.54 billion in cash against the cost of commercialising the Aurora powerhouse — or whether it is tactical positioning ahead of a print that already demonstrated it can move the stock violently in either direction. Constellation Energy CEG, the closest US-listed correlated peer, fell 11.2% on the week, suggesting sector-wide pressure rather than OKLO-specific deterioration.
With availability tightening fast, options buyers leaning bullish, and a hard catalyst six weeks out, the next print is less about the nuclear thesis and more about whether the gap between the $55 stock price and the $60–$130 analyst target range can survive another quarter of pre-revenue reporting.
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