Short Sellers Double Down as JFB Construction Tumbles

JFB Construction Holdings closed the week at $5.85, up 6% over five sessions but still nursing a brutal 40% monthly decline. Short sellers have used the bounce to pile in. Shares short jumped 33% week-over-week to reach 703,000, the highest level since the company went public. Short interest now represents nearly 12% of the free float, up from less than 3% in mid-March.

Borrow costs remain elevated but have begun to ease. Cost to borrow sits at 32.9%, down from 34% at the start of the week and well off the mid-March peak above 44%. Utilisation climbed back to 79%, recovering from a brief dip below 75% last Wednesday. That reading is still well short of the 52-week high of 99.6% set in late March, but the directional move signals tightening availability again. The combined picture — surging short interest, high borrow costs, and rising utilisation — points to growing conviction among bears even as the stock attempts to stabilise.

The short thesis appears to centre on valuation and execution risk. The stock traded above $18 as recently as January; the 70% collapse since then has left the market cap unknown (data unavailable), but institutional holders have turned more cautious. Vanguard added 65,000 shares in the most recent quarter, taking its stake to 105,000, while LPL Financial trimmed its position by 55,000 shares. Raymond James and Marshall Wace each initiated new positions of roughly 80,000 to 97,000 shares in Q4 2025. Founder and CEO Joseph Basile still controls 62% of shares outstanding and added 5,900 shares in early December at $16.79 — a buy that now sits 65% underwater.

Factor scores reflect the stock's embattled position. ORTEX short score ranks in the third percentile, marking it as one of the most heavily shorted names in the construction and engineering sector (which itself ranks in the 20th percentile). Utilisation ranks in the fifth percentile and days-to-cover in the 29th percentile. Dividend score sits at 24 out of 100. Peer correlation is relatively weak; the closest comp, VMI, gained 21% over the past week, suggesting sector tailwinds that JFB has failed to capture.

The company reports earnings again on May 15. The last print on April 15 triggered a 4.8% drop the next day but recovered to close 15% higher five days later. Bulls will want to see sequential improvement in margins and contract backlog to counter the short narrative. Bears will be watching for any guidance cut or cash-flow warning that validates the recent selloff.