Rail Vision is one of the hardest stocks to borrow on Nasdaq right now. Availability has collapsed to near zero — and cost to borrow just surged 227% in a single week.
Availability at Rail Vision is effectively exhausted. The lending pool has been at or near 100% lent out for most of the past six weeks. As of May 8, availability sits at roughly 1% — meaning there is almost nothing left to borrow.
That tightness has a price. Cost to borrow hit 23.9% APR on May 8, up 227% from the prior week's 7.3%. That single-day low on April 30 stands out. It suggests a brief pool expansion that was immediately absorbed — and then some.
The ORTEX utilization rank for RVSN sits at 1 — the tightest percentile in its universe. The short score is 56.1.
The paradox here is that short sellers are actually pulling back. Estimated shares short fell 17% over the past week to roughly . Over the past month, short interest dropped nearly 49%.
Yet borrow cost is rising sharply anyway. That points to a shrinking lending pool rather than new short demand driving the squeeze. Fewer shares are available to borrow. The shorts still holding their positions are paying more to stay in.
FINRA's most recent official print — settlement date April 15 — recorded 110,487 shares short with days-to-cover of 9.3. That print is stale relative to the estimated data, but it confirms the position was meaningfully larger just weeks ago.
Rail Vision reports next on May 29. Recent earnings history shows modest moves: +4.0% and +7.4% on the two most recent prints. With borrow this tight and cost elevated, any volatility around the event will be expensive for short holders to ride out.
What to watch: Whether borrow availability opens up before the May 29 print — or stays locked, forcing remaining short positions to cover at premium rates.
See the live data behind this article on ORTEX.
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