IMSR enters its May 14 earnings event with a material news catalyst in hand. Terrestrial Energy announced a partnership with Riot Platforms to develop data centers co-located with advanced nuclear plants — a deal that directly links the company's molten salt reactor technology to the surging AI infrastructure power demand story.
The stock has responded. It added 1.3% on the week and is up 15.2% over the past month, closing at $7.19. The Riot deal frames the narrative cleanly: nuclear-powered data center co-location is one of the most talked-about themes in the market right now, and IMSR just landed a branded partner.
Positioning in the lending market tells a more cautious underlying story. Short interest is running at roughly 3.2% of free float — modest in absolute terms but ticking up from its late-March low near 3.0%. More notably, availability has tightened to just 44% — meaning only about four shares remain available to borrow for every nine already out on loan. That is the tightest the borrow pool has been in recent weeks and sits well below the loose end of normal. Cost to borrow eased 15% on the week to 1.06%, pulling back from mid-April highs above 1.3%, but the 30-day trend is still up 30%. The ORTEX short score is a steady 57, unchanged at a modestly elevated level — not flashing alarm, but not relaxed either.
Options traders are largely neutral on the name. The put/call ratio is almost exactly in line with its 20-day average at 0.20, a z-score near zero. That reading is close to the 52-week low end of the range, reflecting the generally call-heavy options book that has characterised IMSR throughout the year. There is no defensive hedging pile-on ahead of earnings — options positioning looks calm rather than charged.
Ownership is concentrated. The top individual holder, Roberto Sella, controls roughly 11.7% of shares, with Francine Sella adding another 5.8%. Together they hold close to 18% of the company. Among institutional names, Vanguard, BlackRock, and Citadel each hold around 1-2% — standard passive and quant exposure rather than high-conviction active positioning.
The upcoming earnings print on May 14 carries some weight given the recent price run. The prior event in late March produced a near-flat one-day move of -0.08%, followed by a five-day gain of 3.5%. The November 2025 print was sharper — the stock fell 13.4% the day after results, then extended losses to -7.2% over the following week. With the stock up 15% in a month and a high-profile partnership just announced, the next print becomes less about the numbers themselves and more about whether management can frame the Riot deal into a credible near-term revenue pathway.
See the live data behind this article on ORTEX.
Open IMSR on ORTEX →ORTEX Market Intelligence content is generated by AI from a snapshot of ORTEX's proprietary data. Content is informational only and does not constitute investment advice.
