Piper Sandler analyst Patrick Moley said the volatile trading environment drives third-quarter outperformance for exchange and trading companies, leading to a strong backdrop for retail brokers. Moley maintained Robinhood Markets Inc (NASDAQ:HOOD) with an Overweight rating and a $27 price target. Despite Net Interest Income headwinds from the lower rate environment, Moley noted several distinctive near-term opportunities for Robinhood Markets that should help drive continued earnings growth. On October 16, Robinhood Markets is hosting an active trader summit in Miami, Florida. The analyst expe…