They are only extending the AH market and premarket by a few hours. I don't think it will change anything - not even for earnings.
I have to make a correction to my earlier post. It's only AH trading so it doesn't change the normal 6.5 session. Thank goodness.
These exchanges open during their day & nighttime CME HKFE Eurex SGX because they want to capture the Asian, European, and US markets. Arca Equities Exchange - are they trying to capture the Asian and European markets too?
All I know is that robinhood now offers 24 hr trading 5 days a week on over 1000 stocks....soon I'm sure it will be on over 1200 stocks then 1500 then 2000 and soon the entire market. Im glad there is robinhood that has actually pushed into an area that no other brokers would go.....with everything electronic and mostly algorithms trading markets it will be 24/7.....