It’s an interesting concept to want to trade 24/7, and have expedition like Amazon. And let’s face it some markets like currencies and crypto currency are there. I don’t trade in these markets so I can’t speculate on there expedition.
But bearing in mind most markets have pre market and post market hours, that most brokers don’t allow trading in, a 24/7 market I believe is far far away.
Plus personally I’d be frazzled if they were 24/7. I like the non operating hours for me to absorb what’s happened in that market/sector overall economic impact and do my homework on potential investments. But hey I maybe old school in this respect.