Cornerstone Bank: how it compares with its peers
Against 30 MA banks with half to twice its assets, Cornerstone Bank's strongest measure in Q2 2026 is net interest margin (3.46% vs. a 3.05% peer median). Its weakest relative measure is efficiency ratio (81.02% vs. 69.65%).
| Measure | Cornerstone Bank | Peer median | Rank |
|---|---|---|---|
| Return on assets Annualized net income over average assets. | 0.63% | 0.71% | Middle third Ahead of 40% of peers |
| Net interest margin Annualized net interest income over earning assets. | 3.46% | 3.05% | Top third Ahead of 77% of peers |
| Efficiency ratio Noninterest expense per dollar of revenue. Lower is better. | 81.02% | 69.65% | Bottom third Ahead of 17% of peers |
| Assets per employee Total assets over full-time-equivalent staff. | $10.6M | $10.5M | Middle third Ahead of 53% of peers |
| Loans to deposits Net loans and leases over total deposits. | 99.39% | 95.53% | Context |
What it means for lending operations
Its efficiency ratio of 81.02% is above the 69.65% peer median: it spends more to earn each dollar of revenue than most banks its size. Staff time on manual borrower verification (collecting pay stubs, bank statements, and employment letters, then re-keying them) is one of the larger controllable costs behind that number.
Banks closest in size
- Dedham Institution for Savings Dedham, MA · $2.60B
- South Shore Bank South Weymouth, MA · $2.52B
- Westfield Bank Westfield, MA · $2.73B
- Avidia Bank Hudson, MA · $2.77B
- BayCoast Bank Swansea, MA · $2.86B
- Country Bank for Savings Ware, MA · $2.24B
Questions about Cornerstone Bank
How big is Cornerstone Bank?
Cornerstone Bank, established in 1871, is headquartered in Spencer, MA. It reported $2.57B in total assets in its Q2 2026 FDIC call report and operates 17 offices.
What is Cornerstone Bank's return on assets?
0.63% annualized in Q2 2026, against a 0.71% median for 30 MA banks with half to twice its assets, ahead of 40% of them.
What is Cornerstone Bank's efficiency ratio?
81.02% in Q2 2026: it spent about 81 cents in noninterest expense for each dollar of revenue. The peer median is 69.65%, and lower is better.
Is Cornerstone Bank growing its loans?
Net loans grew 38.5% over the year to Q2 2026, while deposits grew 45.2%.
Sources and method
Figures are from the FDIC’s public call report data for the quarter ending 06/30/2026, via FDIC BankFind. Return on assets and net interest margin are annualized year to date. Peers are MA banks with half to twice its assets in the same quarter, excluding this bank. The page refreshes daily, so new quarters appear as banks file. Compare another bank or see every Massachusetts bank ranked.