Columbia Financial heads into its July 31 Q2 earnings report with an unusually loud insider signal — eleven executives bought stock on the same day, at the same price, less than two weeks ago.
On July 20, a cluster of insiders ranging from the CEO to directors to senior vice presidents all purchased shares at $10.00, collectively committing roughly $1.6 million of their own capital. The CEO, Thomas Kemly, bought 13,057 shares. Senior EVP Allyson Schlesinger led the group with 44,400 shares worth $444,000. Director Elizabeth Randall added 27,200 shares. In total, net insider buying over the past 90 days has reached approximately $4.4 million across 438,000 net shares. The coordinated timing — same date, same price — is difficult to read as coincidental. Shares have since moved up to $10.95, a nearly 10% gain from that entry point, as CLBK has rallied 14.6% over the past month.
The short interest picture is more complicated, and it tells a different story than the insider activity suggests. Short interest jumped from roughly 4.5 million shares to nearly 30 million shares between July 13 and July 24 — an increase of around 560% in ten days — before pulling back to approximately 19.2 million shares by July 29. That leaves short interest at 18.3% of the free float, a level that counts as meaningfully elevated for a community bank. The ORTEX short score peaked near 81 on July 15 before easing to 59.8 by July 28, reflecting this partial unwind. Borrow availability has swung dramatically in the same window. It tightened sharply to just 32.9% on July 20 — the tightest point of the past year — before loosening back to 267% by July 29, suggesting the acute squeeze pressure in the lending market has eased. Cost to borrow remains modest at just over 1%, so short sellers are not paying a punishing rate to hold their positions.
The bull case rests on the net interest margin story. A recent ORTEX note flagged a 2.11% NIM running 6 basis points above expectations, with a 23 basis point linked-quarter improvement — a meaningful acceleration for a bank of this size, which has rallied 54.5% year-to-date. The bear case centres on credit quality: loan loss provisions ran at $2.9 million last quarter, and a 75% core efficiency ratio leaves little room for error if credit costs continue rising. Peers have had a decent week — MBWM gained 4.6%, WTBA rose 5%, and MPB surged over 10% — suggesting the broader regional bank tone is supportive heading into the print.
Past earnings reactions at CLBK have been contained. The April 2026 print delivered a -3% one-day move, while the June event saw a +5.1% day-one gain. The July 31 report will test whether that coordinated insider commitment at $10 and the NIM acceleration can hold up against what short sellers are clearly treating as a credible downside risk.
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