Invesco KBW Regional Banking ETF Faces Rising Short Interest In January, short interest in the Invesco KBW Regional Banking ETF (NASDAQ: KBWR) increased by 9.5%, reaching 12,700 shares by the end of the month. With a current short-interest ratio of 2.4 days, the ETF reflects heightened scrutiny amid market volatility. Its 52-week range spans from $46.02 to $69.75.1