First Interstate BancSystem is entering the week with a sharp and sudden deterioration in short positioning — short interest has climbed nearly 50% since late April, options traders are at their most defensive in over a year, and the Street remains split just days after a key analyst downgrade.
Short sellers have been notably aggressive this week. Short interest as a percentage of the free float jumped to 16.3% on May 11 before easing slightly to 14.6% on May 12 — up from 11.8% just a week earlier and roughly 10% in mid-April. The absolute share count rose 23% over the week. That puts FIBK well above the regional bank peer group on this metric and marks the highest short interest level in the 30-day window tracked by ORTEX. The ORTEX short score, which factors in multiple lending-market signals, peaked at 72.3 on May 11 before pulling back to 68.5 — still elevated and ranking in the 99th percentile of the universe. Despite all this, the actual borrow market is not particularly stressed. Cost to borrow is running around 0.55% — barely changed from a month ago — and borrow availability remains ample, meaning new shorts face little friction entering positions. The pressure here is directional conviction, not a supply-driven squeeze.
The options market is sending the same defensive signal. The put/call ratio closed at 3.37 on May 12, more than two standard deviations above its 20-day average of 0.98. That's a reading that reflects unusually heavy put demand relative to calls — a level only exceeded by the occasional spike toward the 52-week high of 9.32. The shift was abrupt: as recently as late April the PCR hovered below 0.42. In the space of a week it more than tripled. Short interest and options positioning are telling the same story, and the convergence across both markets makes the defensive lean harder to dismiss as noise.
The Street is divided, and the analyst moves from early May add context. Keefe, Bruyette & Woods downgraded FIBK to Market Perform from Outperform on May 1, simultaneously trimming the target to $37 from $38 — a rare double-move from a bellwether regional bank analyst that carries weight. UBS, which already held a Sell rating, lifted its target modestly to $33. DA Davidson kept its Buy rating and nudged the target to $41. The resulting mean analyst target is $37.25, roughly 7.7% above the May 12 close of $34.59 — a modest implied upside that reflects a bifurcated view rather than a consensus bullish case. Valuation multiples are similarly uninspiring: the P/E has compressed to 12.6x over the past 30 days, down about half a point, and the price-to-book is at 0.98x — just below par, which for a regional bank typically signals caution about asset quality or earnings trajectory. Bulls point to credit improvement, expense discipline, and returning fee income growth. Bears focus on balance sheet runoff, declining net interest income, and the drag from a buyback programme that reduces capital available for acquisitions.
Insider activity is net positive in aggregate but the composition is worth noting. Over the past 90 days insiders net acquired roughly 126,000 shares worth approximately $4.3 million, driven primarily by stock awards. The most significant open-market transaction ran the other direction: former Director Jonathan Scott sold 53,504 shares on April 30 for nearly $1.9 million — a large single transaction, though the "Former Director" classification limits how much strategic signal it carries. The CEO, CFO, COO, General Counsel, and CIO all sold modest tranches on March 16, likely tied to a scheduled vesting event. BlackRock is the largest institutional holder at 14%, and recently added a material 6.2 million shares — a meaningful position build that provides some institutional ballast to the ownership register.
The next earnings event is scheduled for July 24. The last print, released April 30, produced a 3% one-day gain and a 5.3% move over the following five days — the strongest post-earnings reaction in the recent history logged here. The question heading toward July is whether credit quality metrics continue to improve as the bull case assumes, or whether the macro pressures on the Inland Northwest regional economy — the bear case's primary risk — begin to surface in the loan book. With shorts at multi-month highs, options positioned heavily for downside, and KBW freshly on the sidelines, the July print carries more consequence than usual.
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