SEC chairman proposes review of rules underpinning stock trading

Trading rules have come under scrutiny amid wild swings for GameStop Corp., AMC Entertainment Holdings and other companies

Wall Street’s top regulator is calling for a broad review of rules that underpin US equity trading, the latest evidence that the meme-stock mayhem is likely to trigger an overhaul.
 
US Securities and Exchange Commission Chair Gary Gensler said Wednesday that he’s asked the agency’s staff to examine best execution requirements — legal mandates that ostensibly force brokers to process customers’ orders at advantageous prices. Gensler added that the process for settling transactions could be shortened to the same day. He also reiterated concerns that companies behind popular smartphone apps have profit incentives to hook consumers on trading.