FalconStor Software heads into the final day of April with a quiet price chart masking a sharp shift in its short-selling activity.
Short interest has climbed aggressively this week, but the absolute level remains negligible. Estimated short interest jumped 82% in a single session on April 24, reaching 2,497 shares — up roughly 62% over the past month. Even after that run, it amounts to just 0.035% of the free float, a rounding error for any institutional participant. What is worth watching is the direction of travel rather than the size.
The more telling signal is in the cost of borrowing. Borrow costs have more than doubled over the past week, rising roughly 51% to 13.6% annualised — the highest level the data shows in recent years and a dramatic shift from the sub-1% rates that held through most of 2022 and 2023. That kind of re-pricing in the borrow market typically reflects tightened supply or concentrated demand, even when the underlying short position is small. Availability, by contrast, looks extraordinarily loose at 9,999% of short interest, meaning the lending pool dwarfs the current short position by many multiples. The borrow cost jump is therefore more likely a function of illiquid lending infrastructure on an OTC-traded micro-cap than any meaningful squeeze dynamic. Days to cover ranks in the 95th percentile, though with volume this thin that metric should be treated with caution.
The short score is steady rather than alarming. The ORTEX short score has hovered between 32 and 34 for the past two weeks, with no dramatic swing in either direction. It ranked in the 56th percentile as of April 29 — above the midpoint, but far from extreme. The utilisation rank of 90 and DTC rank of 95 do lift the factor picture into elevated territory, but these are artefacts of an illiquid float rather than genuine short-selling conviction. Utilisation itself briefly touched 2.42% mid-week before dropping back to zero by April 28, a pattern consistent with episodic borrow activity rather than a sustained positioning campaign.
No earnings event is scheduled, analyst coverage is absent, and the most recent institutional filing — Bard Associates reducing its stake by 155,589 shares to 344,501 shares (4.8% of shares) as of December 2025 — represents the only external ownership signal. Insider data is stale, with the last recorded trade dating to March 2023. The stock itself has barely moved, trading at $2.40 with a flat week and a modest 5.6% gain over the past month. Market cap is approximately $17 million.
The story for FALC this week is narrow: a sharp but small spike in short interest and a notable doubling of borrow costs on a stock with almost no institutional infrastructure. Whether the borrow cost drift persists or fades back to low single digits is the only metric worth monitoring into next week.
See the live data behind this article on ORTEX.
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