Archer Aviation has now cleared its Q2 earnings hurdle — and the short base, which stubbornly held through a 20% pre-earnings rally, has finally begun to crack in earnest.
The post-earnings short unwind is real but still measured. Short interest dropped roughly 11% across the week to 91.2 million shares, now 12.5% of free float — down from the 14.1% reading that held firm through the pre-earnings run. That extends a decline from the mid-July peak near 127 million shares, and marks the sharpest weekly cover since that peak. The stock's Q2-day pop was substantial: shares jumped 21% on August 10 and held a further 5% gain on August 13. The one-month move now stands at 42%, yet the short position has only unwound by about 20% from peak. Borrow costs remain near-negligible at 0.53%, essentially unchanged from last week, so there is no cost pressure forcing remaining shorts to exit. Availability has loosened notably, recovering to 72% — up sharply from 57% the prior session and well above the 52-week tightest reading near 47%. The borrow market is easing, not tightening, which means new shorts face little friction if they want to re-establish.
Options positioning offers a striking contrast to the pre-earnings setup. The put/call ratio of 0.20 is fractionally below its 20-day average and near the lower end of its 52-week range of 0.16–0.45. This is not a market bracing for further downside — options traders are as relaxed as they have been all year. The ORTEX short score of 66.2 has edged down from the 67.6 reading that preceded earnings, but still ranks in just the 5th percentile of the broader universe. That score reflects persistent bearish structural pressure: elevated SI, cheap borrow, and moderate availability in combination still signal a meaningfully above-average short overhang, even after the recent unwind.
The Street remains broadly constructive, though not uniformly so. Cantor Fitzgerald reiterated Overweight with an $11 target on August 11, immediately after the Q2 print — the most recent and most relevant signal, with the stock at $6.32 implying roughly 74% upside to that target. The analyst consensus clusters around $10.60, also a significant premium to current levels. Goldman Sachs carries a Neutral rating with an $11 target, initiated late in 2025, while JPMorgan holds Neutral at $8 — the most cautious major-firm view. Canaccord Genuity and Needham both maintain Buy ratings but have trimmed targets progressively from the $12–$13 range toward the $9–$12 range, a quiet acknowledgment that certification and commercialisation timelines keep slipping. The bear case — regulatory delays, supply chain friction, capital needs — remains live. The price-to-book multiple has expanded sharply, up more than 1.3x over the past month, reflecting the rally rather than any fundamental re-rating.
Institutional ownership adds texture. BlackRock added 4.8 million shares and State Street added 5 million in the most recent reporting period, both through July 31. Vanguard entities collectively added over 10 million shares through June. Stellantis, the largest disclosed holder at 9.8% of shares, has not reported a change since January. ARK Investment Management holds nearly 4.9% with minimal recent activity. These are not momentum-chasing flows — they are passive and strategic holders accumulating through the volatility. On the insider side, four executives sold shares on August 17, following stock awards granted on August 14 — routine RSU-vest selling rather than a directional signal, with individual transaction values ranging from roughly $64,000 to $338,000.
Among correlated peers, EVEX fell 7% on the week, roughly in line with ACHR's 7% decline. EVTL dropped 12.5%, the steepest pullback in the peer group. BETA bucked the sector, gaining 8.8%, and AIRO added 6.5% — divergence that likely reflects stock-specific news rather than a sector-wide bid. The eVTOL group broadly gave back some of the earnings-week gains, with ACHR's pullback sitting in the middle of the pack.
The next scheduled catalyst is the Q3 earnings report, currently expected in early November. Between now and then, the question is whether the remaining 91 million short shares — still a historically elevated position — continue to peel off gradually or find a catalyst to re-entrench.
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