Sky Quarry heads into the final week of April with short sellers piling in at a pace rarely seen in small-cap oil names — short interest exploding tenfold in a week while borrowing costs remain punishingly high, all against the backdrop of a stock that is still up 130% for the month.
The short-interest move is the defining story here. Short interest jumped from roughly 4.5% of the free float on April 23 to 49.5% by April 30 — an increase of nearly 1,000% in a single week, and the highest reading ORTEX has on record for this ticker. That is not a gradual build; it is a rush. The stock has attracted intense bearish positioning almost immediately after a violent rally that saw SKYQ more than double in price through mid-April, when shares were halted on a circuit breaker to the upside and multiple sessions prompted the question "Why is Sky Quarry surging?" without a clear fundamental answer.
The borrow market reflects that demand acutely. Cost to borrow has climbed to 355% annualised — up more than 800% from its late-March level of around 35%. A month ago this was a name where borrowing was cheap and routine; it is now one of the most expensive shorts in the small-cap universe. Availability has tightened alongside: with roughly 79% of lendable shares already out on loan, only about one in five remain available to new short-sellers. The 52-week tightest reading was 94.5% lent out, hit just weeks ago on April 3rd — the market is not far from that extreme again and trending in the same direction.
The ORTEX short score underlines how charged the setup has become. It jumped sharply from the mid-60s on April 22 to above 80 by April 27, where it has held for the entire past week. A score of 80.8 places the stock in the top percentile for bearish lending signals. Days-to-cover ranks in the 82nd percentile against the broader universe. That combination — high short interest, expensive borrow, tight availability, and an elevated short score — describes a crowded bearish trade sitting on top of a highly volatile stock.
The fundamental catalyst behind the rally — and the subsequent short build — is Sky Quarry's Utah oil sands asset. The company issued an RFP on April 29th seeking development partners for its approximately 180 million barrel oil sands resource. That is a headline designed to attract attention, and it did: retail media coverage has been sustained and intense since early April. Whether the asset can be monetised at scale is the central debate between bulls, who are pricing in significant resource value, and bears, who appear to be betting that a micro-cap with no institutional analyst coverage cannot sustain a $5.90 share price after a 130% monthly gain on momentum rather than earnings.
Earnings history adds important context. The last four events show an average pattern of extreme volatility: the April 16th event produced a 28% one-day decline and a 36% five-day drop. The March 31st event saw a 5% one-day gain followed by a 165% five-day surge — the move that likely drove the recent rally. Prior to that, November 2025 saw an 19% one-day pop. The asymmetry of outcomes around catalysts has been extreme. The next event is flagged for May 15th.
With short interest at 49.5% of the float, cost to borrow above 350%, and an earnings event two weeks out, the tension between an entrenched short position and a still-elevated share price is the number to watch — specifically whether either borrow availability or short interest begins to move in the other direction before May 15th.
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