MARA Shorts Add as Borrow Tightens Before November Print

MARA Holdings enters the final stretch before its November 6 earnings report with the stock down 22% on the week, short interest at a fresh high, and the lending pool tightening sharply after weeks of loose conditions.

The most material change since last week's notes is in the borrow market. Availability has tightened hard: shares available to borrow now represent just 29.7% of short interest, less than half the roughly 58% reading cited in the October 10 articles. That is the tightest the pool has been in over a month, having loosened as far as 97% in late September before reversing. The shift matters because it arrives alongside short interest that is still building: 106.9 million shares short, up 3.2% on the week and 28.3% of free float. Cost to borrow has edged up 20% on the week to 0.68%, still low in absolute terms, but the direction of travel combined with tightening availability marks a different texture to the lending market than the relaxed setup that characterised October's first two weeks.

Options positioning has also rotated. The previous notes flagged a put/call ratio well below its 20-day average as evidence that options traders were leaning bullish against the short sellers. That divergence has closed. The PCR now stands at 0.75, more than 2.4 standard deviations above its 20-day mean of 0.71. Put demand has picked up sharply, moving the ratio from the bottom of its one-year range toward the middle. The 52-week high is 0.95, so options sentiment is not at an extreme, but the swing from unusual bullishness to the most defensive reading of the past month in the space of a week is notable. With earnings 19 days out, hedging demand is a plausible driver.

The Street is broadly negative on the name, and recent moves have gone in one direction. Morgan Stanley's Stephen Byrd cut his target to $10 from $11 earlier this month, maintaining an Underweight rating. JP Morgan downgraded MARA to Underweight in mid-September, cutting the target to $11. Those moves sit against a mean analyst target of $18.61, a gap that reflects a split between the few remaining bulls with targets well above current levels and an increasingly vocal bear faction. The bear case is well-documented: 96.8% of trailing revenue tied to bitcoin, a $360.9 million adjusted EBITDA loss in Q2, and unproven AI/HPC lease execution that must materialise before hosted mining rolls off by Q1 2028. Bulls point to the 4.8 GW power platform, the Starwood partnership, and a bitcoin treasury of 35,577 BTC as optionality that balance-sheet figures do not capture. The ORTEX short score of 67.3 places MARA in the 7th percentile for short positioning rank, and the EPS surprise factor scores at the 94th percentile, a record of beating estimates even when the underlying numbers are losses.

The sector is offering no shelter. Close peers CLSK and RIOT fell 10% and 11% respectively on Friday, and are both down roughly 19% to 20% on the week. CIFR is the weakest in the group, off 34% on the week. MARA's 22% weekly decline puts it broadly in line with peers rather than a specific target of selling, which makes the continued build in short interest more interesting: bears are adding into a sector-wide rout rather than rotating out of the position.

The earnings history adds context without comfort. The two most recent prints both produced first-day declines of roughly 10%, followed by five-day losses of 14% to 18%. November 6 is the next test of whether that pattern holds, and with borrow tightening, short interest near a local high, and options traders now hedging more defensively, the setup into that date has shifted from last week's picture in almost every direction that matters.