Yeah I guess currency exchanges / futures have always been 24/7 as there is always an open market somewhere in the world. Crypto currencies are close to that I guess.

I wonder if equity markets will one day move to always on, I hope they do.

With more investment options such as crypto currencies, I wonder if they will eventually do it to stay competitive to investment cash.

Nothing worse than pre-market and after hours shenanigans in equity markets, can't pull that in an always on market.