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Profitability · Puerto Rico

US Banks with Highest Net Interest Margin (NIM) in Puerto Rico

Ranked among banks headquartered in Puerto Rico. Re-ranked 1-4 within the state from the same national ranking population.

#1 Net Interest Margin (NIM): ORIENTAL BANK — 5.34% . Net Interest Margin (NIM) measures the spread between interest earned on assets and interest paid on liabilities — the core unit economics of a commercial bank.

Ranked: 4 banks with reported data Showing: Top 4 Source: FFIEC call reports (Q1 2026) What is this metric? See the US Banks with … glossary entry Go deeper: What Is Net Interest Margin? A Bank Profitability Guide
# Bank HQ US Banks with … Total Assets
1 Oriental Bank San Juan , PR 5.34% $11.97B
2 Firstbank Puerto Rico San Juan , PR 4.73% $19.07B
3 Banco Popular De Puerto Rico San Juan , PR 3.84% $60.62B
4 Nave Bank San Juan , PR 2.76% $466.6M

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All data sourced from the most recent FFIEC call report filings, refreshed each quarter as new filings are processed. This leaderboard excludes banks with total assets under $100,000K to filter out anomalous micro-bank ratios. See /data-updates/ for the current data freshness window.

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