Bank of Marin's Rising-Rate Rehab

A small Bay Area bank finally has loan growth and a NIM tailwind — but the same rate move helping earnings is squeezing tangible capital and keeping buybacks on ice.

BMRC · Earnings Call · 2026-10-26

Bank of Marin's Rising-Rate Rehab

Bank of Marin Bancorp is a $450 million-market-cap Bay Area bank that spent the last two years cleaning up a pandemic-scarred loan book and a securities portfolio. The Q3 2026 call — reported October 26 — is the first in a while where the story is less about repair and more about operating leverage. EPS came in at $0.62 versus $0.58 in Q2; return on assets hit 1.05%, return on tangible common equity 12.26%, and the efficiency ratio 58.65%. “Our net interest margin expanded 10 basis points in the quarter, which drove sequential quarter EPS growth of 7% and year to date EPS growth that was 62% higher than the prior year period.” — Timothy D. Myers, Chief Executive Officer (CEO) · 2026-10-26 The stock has noticed: +5.7% over 90 days, though still 10.5% below its July peak and far below the 2019 high.

The rate regime flips

The genuinely new thing on this call is the macro frame. For the prior year, management talked about falling rates and Fed cuts. In January 2026 the CFO framed the deposit opportunity with “markets looking for one to two twenty-five basis point rate cuts” — Dave Bonaccorso, CFO · 2026-01-26; in October 2025 he argued there was “quite a bit of benefit to NIM expansion in a falling rate environment.” — Dave Bonaccorso, Chief Financial Officer · 2025-10-27 Q3 2026 is the mirror image. The CEO now says: “With financial markets expecting additional hikes in the Fed funds target rate range, we believe our high non interest bearing deposit concentration positions us well to achieve a relatively low rising rate deposit beta as we have experienced in previous rising rate cycles.” — Timothy D. Myers, Chief Executive Officer (CEO) · 2026-10-26 That is not just a company view. Globally, Fed rate hike is one of the highest-momentum market themes in the latest quarter, alongside rate environment and deposit beta chatter across regional banks. Bank of Marin is riding a market-wide wave, not creating one. What differentiates it is the deposit franchise. Non-interest-bearing deposits rose $45 million in the quarter and ended at 37.8% of total deposits. CFO David Bonaccorso was explicit about the historical beta:

if you look at peers, in the last cycle, our total deposit beta was 29% to 43% for peers. So I think on a relative basis, we are positioned very well for the rising rate environment, managing deposit costs and then also continued loan repricing.
David Bonaccorso, Chief Financial Officer (CFO) · 2026-10-26

That is the moat. But the same rate rise is also the toll. Tangible book value fell to $18.81 and the tangible common equity ratio to 8.05% because “Rising market interest rates negatively impacted AOCI by $24.8 million during the quarter.” — David Bonaccorso, Chief Financial Officer (CFO) · 2026-10-26 The latest filed common equity base was $397 million, down 10% year over year. So the rate tailwind for NIM is simultaneously a capital headwind. That tension explains why the stock can rally on earnings while still trading at only 1.1x price-to-book.

Loan growth is back — but commitments first

The company's freshest keyword is loan fundings, and the operating numbers support it. Originations were $102 million; fundings $63.6 million; payoffs fell to $31.6 million from $71 million in the prior quarter. “Payoffs went from a pretty high mark of 71 million down to 31.6 million.” — David Bonaccorso, Chief Financial Officer (CFO) · 2026-10-26 Management also flagged $25 million of unfunded Construction loans — high-yielding CRE commitments that will fund over the next 18 to 24 months. The $31 million mortgage pool of California residential loans, bought at a 6.20% coupon and expected to yield around 6%, is explicitly opportunistic rather than a new growth engine. The quality-of-NIM question is worth flagging. The 10bp expansion was helped by one-way deposit sales: the CFO said September NIM was 3.52% reported, but “If you were to completely eliminate 1 way sales, you are probably in 3.46 area.” — David Bonaccorso, Chief Financial Officer (CFO) · 2026-10-26 So roughly 6bp of the reported margin was balance-sheet engineering, not core repricing. The core loan story is still good: new loan yields were 6.65%, 142bp above the portfolio yield, and the CFO estimated 25-ish basis points of monthly loan-yield benefit a year out. In July, the prior message was “we still think we are looking at about 20 basis points or so of monthly loan yield benefit a year from now.” — David Bonaccorso, Chief Financial Officer · 2026-07-27 So the direction is better, but the call is more 'grind higher' than 'breakout.' Net interest income was $31 million in the latest filed quarter, up 19% year over year.

Fees and expenses: small, real, and a little noisy

Non-interest income rose $501,000, including a $251,000 increase in service charge income from an updated business-deposit pricing strategy effective July 1. That is a modest but genuine fee initiative — the kind of blocking-and-tackling repricing a bank born from acquisitions often leaves on the table. Expenses fell about $1 million, but the CFO attributed much of that to an incentive bonus accrual adjustment, prior-quarter annual event expense not repeating, lower professional services, and more normal FDIC insurance. Q4 is guided 'pretty similar to Q3,' with seasonality afterward. So the operating leverage is real, but not all of it is recurring. Non-interest expense was $22 million in the latest filed quarter, flat year over year.

What changed — and what didn't

Credit is no longer the lead story. Nonaccrual loans dominated the company's keyword profile in prior quarters; this quarter it is background. Special-mention loans fell $36 million, helped by $18 million of upgrades and payouts; classified loans rose $15 million, mostly a $14 million owner-occupied CRE relationship with a borrower-specific issue that is paying as agreed and is described as strongly collateralized. The remaining $8 million nonaccrual is in a judicial-reference process with indeterminate timing. That is better than the old pandemic-CRE and wine-loan narrative, but not spotless. Capital remains the constraint. No shares were repurchased; the CEO said the bank is 'getting closer' to conversations with regulators about buybacks but would not call anything imminent. M&A is still more aspiration than action: 'no conversations that are more progressed.' The strategic story is therefore organic: add lenders, fund construction commitments, reprice deposits, and let the securities book roll off. The risk is that continued Fed hikes keep pressuring AOCI and tangible book value, limiting how much capital can be returned even as earnings improve. The bottom line: Bank of Marin has moved from credit cleanup to a credible rising-rate earnings recovery, with a deposit franchise that should produce a lower beta than peers. But the market-wide Fed rate hike wave is a double-edged sword, and the Q3 NIM beat leaned partly on one-way deposit sales and a lighter expense base. The stock is up, but the story is still a rehabilitation, not a victory lap. Net income was $9 million in the latest filed quarter, up 208% year over year.