Key Highlights

  • Acme United (NYSEAMERICAN:ACU), the smallest name at USD 271.24 million, lifted third-quarter sales 18% to USD 58.0 million, with an Acquisition and a Tariff refund both contributing.
  • Avidbank Holdings (NASDAQ:AVBH) brought in USD 10.2 million during the third quarter, while a USD 37.7 million quarterly loss from a year earlier still weighs on its trailing EPS.
  • American Integrity Insurance (NYSE:AII) lacks a confirmed catalyst behind its high and publishes third-quarter numbers on November 10.
  • ACNB Corporation delivered its strongest quarter across 169 years, whereas California BanCorp, the biggest name here at USD 709.02 million, hit a peak even with reduced earnings.

1. Acme United (NYSEAMERICAN:ACU) Refund-Lifted Quarter

At USD 70.75 and up 1.80% on November 4, 2026, Acme United (NYSEAMERICAN:ACU) ranks as the smallest name on the record list, with a Market Value of USD 271.24 million. Third-quarter net sales grew 18% to USD 58.0 million, or 10% without an acquired direct-to-consumer unit, while diluted EPS leaped 74% to USD 0.80. A portion of that stems from a single item: a USD 6.0 million tariff refund pushed the gross Margin up roughly 690 basis points to 45.3%, and without the refund EPS stood at USD 0.55, still 20% higher. First aid goods account for about 70% of revenue. The Marlboro, Massachusetts Facility will close in the fourth quarter at a cost near USD 1.0 million, generating savings above USD 1.0 million per year beginning January 2027, and an RFID first aid kit is set to ship that same month. Net Debt climbed to USD 29.7 million amid an inventory build. Trading Volume is light, roughly 34,240 shares on the session.

2. Avidbank Holdings (NASDAQ:AVBH) Trailing Loss Drag

Avidbank Holdings (NASDAQ:AVBH), with a USD 383.98 million valuation, finished at a record USD 34.92, a 0.81% increase. The screen lists trailing EPS of negative USD 1.92, an odd figure for a stock at its peak. Timing explains it: a USD 37.7 million loss from the third quarter of 2025 remains inside the trailing twelve months, and the material reviewed does not explain what caused that loss. The newer numbers point elsewhere. Third-quarter 2026 Net Income reached USD 10.2 million, or USD 0.94 per share, with a net interest margin of 4.07%. Annualized, that equals about USD 3.76 per share, and the screen price implies roughly 9.3 times Earnings by our own arithmetic. Deposits of USD 2.61 billion contain a temporary deposit near USD 270 million, which makes funding look less settled than it appears. On November 5 AVBH fell 2.35%, closing at USD 34.10, and nonperforming loans at 0.70% deserve monitoring.

3. American Integrity Insurance (NYSE:AII) Storm Exposure

Valued at USD 570.81 million, American Integrity Insurance (NYSE:AII) shows up on the record list at USD 29.13, although the shares slid 1.05% during the session. Market data found no catalyst from November 4 to 6. The most recent dated filings are an announcement of when third-quarter numbers arrive, plus a Form 144 submitted on November 4, which points to an intended share sale by an insider or affiliate. The high draws on earlier figures. Second-quarter Revenue jumped 54.6% to USD 115.17 million, net income increased 24.2% to USD 34.15 million, and the combined ratio fell to 63.4% from 72.9%, free of catastrophe losses. Starting June 1, this Florida homeowners insurer retains more premium and more exposure, having lowered its non-catastrophe Quota share from 40% to 25%. A screen P/E of 6.48 looks low, though storm risk accounts for much of that. Results arrive on November 10 once trading ends, putting the record under direct scrutiny within days.

4. ACNB Corporation (NASDAQ:ACNB) Clean Earnings Record

Valued at USD 686.57 million, ACNB Corporation (NASDAQ:ACNB) finished at USD 67.51, a 2.03% gain. The Gettysburg, Pennsylvania lender offers the cleanest earnings profile among the small caps listed. Net income of USD 15.7 million in the third quarter, paired with diluted EPS of USD 1.55, produced its best quarter in 169 years, with EPS higher than the USD 1.42 posted a year before. A 4.56% net interest margin and 1.87% Return on Assets are elevated for a bank this size. Expansion included the Traditions Bancorp deal, closed in February 2025, and the third quarter absorbed no Merger expenses. The Dividend went up 23.5% to USD 0.42 per quarter, a screen Yield of 2.37%. Valuation is the stretched element: the stock sits near 2.0 times, measured on tangible Book Value of USD 33.26, by our own arithmetic. Credit warrants watching, with nonperforming loans rising to 0.45% and extra reserves set aside for one commercial borrower.

5. California BanCorp (NASDAQ:BCAL) Charge-Off Question

The largest of the five at USD 709.02 million, California BanCorp (NASDAQ:BCAL) closed at a peak of USD 22.19 with a 1.84% gain. It stands as the only company here whose profit declined. Third-quarter net income landed at USD 14.0 million against USD 15.7 million one year earlier, and diluted EPS dipped to USD 0.43 from USD 0.48, because the provision grew to USD 3.2 million once two commercial loans were written off. The San Diego lender depends on Capital returns. During 2026 it repurchased 721,857 shares for USD 14.0 million and paid down USD 35.0 million of subordinated debt. Deposits climbed 3.5%, and noninterest-bearing balances made up 36.3% of the total, keeping funding costs modest at 1.33%. The bank additionally launched a San Francisco Loan production office on October 1. Measured on tangible book value of USD 14.22, the stock sits near 1.56 times, a moderate level. The unanswered question is whether the charge-offs were one-time events.

Where Things Stand

Among the five small caps at record levels, ACNB Corporation appears to have the most substance behind its high, reflecting its finest quarter and strong returns despite the priciest book multiple. Acme United shows real expansion, though part of its EPS surge traces to a tariff refund. Avidbank Holdings is profitable once more, but a loss from a year ago still distorts its trailing figures. California BanCorp set a peak with lower earnings, while American Integrity Insurance lacks a confirmed catalyst and reports on November 10. Thinly traded small caps can swing hard, so these highs, all posted on the November 4, 2026 close, could prove less durable than those of bigger companies.