JP Morgan Downgrade Rattles MARA as Crypto Miners Sell Off

MARA Holdings heads into the back half of September with a freshly hostile analyst call, a broad crypto-miner selloff, and bears still holding nearly 29% of the float short — yet the borrow market is unexpectedly loosening.

The standout event this week was JP Morgan's double downgrade of MARA. Richard Choe cut the stock from Overweight to Underweight on September 14, slashing his target from $13 to $11 — a call that cuts against the consensus direction and is all the more striking coming from a bellwether firm. The move lands just days after HC Wainwright assumed coverage with a Buy and a $20 target, creating a sharp split on the Street: one major bank now has MARA at its lowest conviction rating while smaller specialist shops remain firmly bullish. With the stock closing at $11.24, Choe's $11 target implies essentially no upside from current levels. Morgan Stanley, meanwhile, maintains Underweight with a $6 target — a level that would represent roughly a 47% decline. Against those bears, Cantor Fitzgerald holds Overweight at $12, Rosenblatt stays at Buy with a $15 target, and BTIG has reiterated Buy at $27. The mean target across the coverage group is $18, implying substantial theoretical upside — but the direction of recent moves has been almost uniformly lower, with several bulls trimming targets after the August earnings miss.

That August print matters here. MARA fell roughly 10% the day after its most recent results and shed a further 18% over the subsequent five trading days — a pattern that repeats across the prior earnings event in the history, where the stock also dropped 10% on the day. Next results are pencilled in for November 6, giving positioning roughly seven weeks to evolve. Bulls point to MARA's growing Bitcoin portfolio, power asset diversification into AI and HPC, and strategic partnerships. Bears emphasise the company's total dependence on Bitcoin price, negative earnings (PE is deeply negative, EV/EBITDA is an eye-watering 330x on trailing numbers), and the real risk that value creation from the Long Ridge acquisition and HPC buildout won't show up until mid-2028 at the earliest. The price-to-book is modest at 1.96 and has risen 37% in a month as the stock climbed, suggesting the valuation re-rating already bakes in optimism the fundamentals haven't yet earned.

Short positioning is elevated but not intensifying — and that's the interesting wrinkle this week. At 28.8% of free float, short interest is among the highest in the market, yet it has been essentially flat over the past month, edging down fractionally week-on-week. The more notable move is in the borrow market: availability has jumped from around 34% at the start of September to 53% now, a 26% improvement in a week. That means the lending pool has loosened meaningfully — new shorts face less friction than they did two weeks ago, even as cost to borrow has slipped to just 0.60%, a 15% decline on the week. This is not the setup of an imminent squeeze; if anything, the easing availability and low borrow cost give bears more room to add if the JP Morgan call gathers momentum. The ORTEX short score at 67 — down modestly from 68.5 earlier in the month — remains firmly in elevated territory, ranking in the sixth percentile of the universe (meaning very few stocks carry more structural short pressure). Options positioning is relatively calm by contrast: the put/call ratio at 0.74 is only slightly above its 20-day average of 0.73, with a z-score under 1. The options market is not pricing exceptional fear despite the analyst fireworks.

Across the peer group, this week's crypto-miner rout was widespread. CLSK dropped 6.4%, RIOT fell 11.5%, BTDR shed 13.9%, and CIFR lost 18.5% on the week. MARA's 5% weekly decline looks almost contained by comparison — a sign either of relative resilience or of the stock having already de-rated sufficiently. BlackRock remains the largest institutional holder at 16.6% of shares, and added 4.3 million shares in its most recently reported period through August 31. The CEO and CFO both sold modest quantities under pre-arranged 10b5-1 plans in August, which carry less signal than discretionary sales but are worth noting given the timing around the earnings drop.

The test for MARA over the coming weeks is whether the JP Morgan downgrade reshapes the analyst consensus or proves idiosyncratic — and whether Bitcoin's price trajectory gives bulls or bears the more comfortable narrative heading toward the November earnings date.