The Volcker Rule was one of the more divisive aspects of the Dodd-Frank legislation. The rule virtually outlawed proprietary trading, but arguably led to less liquidity, especially in fixed income markets. Now the rule has been partially pulled back, and there are is a view to gutting it entirely, but some warn about the dangers of doing so. According to the Financial Times, there are big risks to repealing the rule as it would arguably bring back the casino mindset that dominated big bank trading before the Crisis.
FINSUM: Banks are doing very well and the trading system has operated quite smoothly since the introduction of the Volcker Rule. We see no legitimate reason to overturn it.