ASTS: Lending Pool Freezes Again as Shorts Hold Firm

AST SpaceMobile has swung back into its most familiar position — stock up on the week, borrow market nearly locked, and a 21% short float that shows no sign of retreating.

The lending market re-froze faster than it thawed. The previous note flagged availability climbing to 14.6% as a meaningful step away from the near-freeze of late August. That relief lasted days. Availability has collapsed back to just 1.7% — fewer than two shares available for every hundred on loan — matching the tightest conditions seen since the 52-week low of 0.31% hit in late July. The swing is striking: availability was at 14.6% on September 1 and 8.1% on August 27 before the pool dried up again. Despite the tight borrow, cost to borrow actually eased this week, dropping 18% to 1.03% — suggesting the freeze reflects genuine scarcity of lendable supply rather than a cost-driven squeeze. Short interest itself ticked up another 2% on the week to 58.5 million shares, or 21.1% of the free float. Bears have now added back roughly 2.5 million shares since mid-August, quietly rebuilding after cutting 12 million shares from their peak. With availability this thin, any new short demand faces a shrinking pool to draw from.

Options traders are relaxed about all of this. The put/call ratio reads 0.45, sitting marginally below its 20-day average of 0.46 and well off the 52-week high of 0.67. Call volume continues to dominate, consistent with the bullish-leaning investor base that has driven a 7.3% gain this week — a notable rebound from the 11.4% monthly decline. The absence of protective put-buying into a re-freeze of the borrow market is itself a data point: equity holders are not hedging at these levels.

Street sentiment has freshened up this week. Berenberg initiated with a Buy and a $92 target on September 2, adding momentum to a coverage list already tilted toward the optimistic. Piper Sandler holds an Overweight with a $98 target, and Cantor Fitzgerald raised its target to $90 after the August earnings print. UBS is the clearest dissenter, maintaining Neutral with a $78 target after trimming it post-earnings. The consensus mean target runs at $78.48, a 26% premium to the current price of $62.31 — though that average is dragged down by a handful of cautious names. The bull case centres on government contracts, telco partnerships, and the direct-to-device opportunity. Bears flag execution risk, capital burn, launch delays, and Starlink competition — a bear case that became more pointed given the recent note from the stock's own news context flagging a commercial satellite launch delay pushed to early 2027.

The activist register adds a layer of structural complexity. AT&T, Vodafone Ventures, and Rakuten Mobile all hold Schedule 13D filings — strategic investors with disclosed active intent, not passive allocators. CEO Abel Avellan holds 20.8% of the class as of his most recent filing in June. These are not hedge funds pressing for a quick outcome; they are telco partners with commercial skin in the game. On the open-market side, Director Adriana Cisneros made three discretionary purchases totalling roughly $619,000 on August 31, buying at prices between $57 and $59. These were not pre-arranged plan trades. With the 90-day insider net position sitting at –$7.5 million (reflecting compensation transactions earlier in the period), the directional signal from the Cisneros buys is worth tracking — a director paying cash at market into weakness carries more weight than a grant.

BlackRock has been adding steadily, reporting 5.1% of shares as of August 31 with a quarter-on-quarter increase of 756,000 shares. Vanguard affiliates collectively own around 9%, also growing. Rakuten trimmed from 7.2% to 5.3% in its most recent 13D/A, and Vodafone slipped from 6% to 5% — both still active filers, but both reducing exposure. As always, stakes are event-driven disclosures around the 5% threshold; holders who fall below that level may exit quietly without a further filing.

The next scheduled earnings date is November 10. Between now and then, the satellite launch timeline and any government contract awards are the variables worth watching — the lending pool's second freeze in a fortnight suggests the market is already positioning around them.