easy, and perhaps a bit naive. it is possible you may cause more market turmoil by halting only certain stocks which would push volume into ETFs, futures, opti

easy, and perhaps a bit naive. it is possible you may cause more market turmoil by halting only certain stocks which would push volume into ETFs, futures, options, and other stocks in the same sectors. The markets are very interconnected and very fast moving. 'simple' solutions rarely work.