Equity and asset growth among Subchapter S banks

Since 2004, commercial banks in the United States have been allowed to elect Subchapter S (hence Sub-S) status with up to 100 shareholders. That limitation may promote more effective monitoring of bank managers by shareholders which can, in turn, explain previous findings of superior performance among Sub-S banks. The present research focuses on the possibility that the shareholder limitation also constrains opportunities for bank growth, or a slow growth hypothesis for Sub-S banks. Using a differences-in-differences regression approach for a sample of community banks (i.e., less than $1b in assets) from 2004 to 2014, and controlling for initial assets and urban location, it is found that annual growth in real assets and equity was significantly higher among banks that never held Sub-S status than for banks that always held Sub-S status, and that banks switching to Sub-S later grew significantly faster than those that always held Sub-S status. Fixed effects regressions show that switching to Sub-S status significantly reduced equity growth, with asset growth significantly reduced after 2008. In conjunction with earlier findings, the results suggest that the availability of Sub-S status helped to protect and strengthen community banks across a time period including substantial financial turmoil.