AerCap Outpaces Peers as Short Book Collapses

AerCap Holdings gained 5.1% over the past week, more than three times the median 1.6% advance among its closest correlated peers, while its short interest simultaneously fell 31% to 1.54% of the free float.

Among that peer group, WLFC posted the strongest comparable move at 7.5% on the week, and GATX added 3.6%. The rest were more muted. AerCap's price gain therefore looks somewhat idiosyncratic rather than a sector-wide lift, and the timing with Q3 results is the obvious explanation.

The short book collapse is the clearest data point in the picture. Shares short fell from roughly 3.75 million to 2.56 million in a single week, the fastest retreat in the 30-day window. A month ago the position stood near 3.4 million shares. The borrow market gives no sign of stress driving the exit: availability is effectively uncapped, with around 60 million shares available to lend against a short position of under 3 million. Borrow costs are 0.53%, low in absolute terms despite ticking up slightly on the week. The ORTEX short score fell from 34.3 on October 14 to 30.8 on October 27, its softest reading in the period. Short sellers closed their positions into the results, not after them.

The analyst community had already set a high bar. TD Cowen raised its target to $185 earlier this month, keeping a Buy rating. The consensus target is $179.80, against a current price of $155.48, a gap of roughly 16%. Morgan Stanley is the notable hold-out, maintaining Equal-Weight with a $165 target, a more cautious view grounded in the leverage that runs through the leasing model. Bears point to AerCap's dependence on capital markets to finance its fleet and the residual-value risk that sits entirely on the company's balance sheet when airline lessees underperform. The earnings yield factor score ranks in the 92nd percentile of the ORTEX universe, a reminder that the stock prices in a meaningful risk premium despite the constructive analyst tone.

The print will test whether Q3 results and any updated guidance on aircraft deliveries, lease rates, and buyback pace are enough to close the gap between the current price and a target that the Street has been steadily lifting throughout 2026.