Closed Friday, September 25, 2026 · Irvine, Orange County, California
Nano Banc
Nano Banc was the largest of the 6 bank failures in 2026. Its assets grew 199% in the three years to the third quarter of 2020, then shrank 46% before it closed. No bank in California had failed for three years, since First Republic Bank closed in 2023.
On the books, 2018 to 2026
Total assets peaked at $1.4 billion. Equity capital went from 14% of assets in the third quarter of 2018 to 5.3% at the last report. By then 26% of its loans were 90 days or more past due or no longer accruing interest. Nano Banc reported a net loss in six of Nano Banc's final nine reporting years. The deepest annual loss, $75.3 million, was booked in 2025.* 2026: January to June only, the last report before closing.
Size against the other 2026 failures
Total assets of each 2026 failure, log scale; Nano Banc in red.
Within California it ranks 43rd by size of the 239 failures recorded since 1934. Across the failures of 2026, the median estimated loss came to 12% of assets. The next-largest failure of that year was Community Bank and Trust - West Georgia of LaGrange, Georgia ($306 million, loss 32% of assets). Every 2026 failure in the explorer.
Failures in California
No bank in California has failed since. Orange County has 51 failed banks on FDIC record since 1934. Closest in time: First Heritage Bank, NA (2008), Downey Savings and Loan Association, F.A. (2008), MetroPacific Bank (2009), Pacific Coast National Bank (2009), First Vietnamese American Bank (2010).