Now with T+1, can proceeds from a stock sale be used to buy another stock the same day w/o margin?

If during the trading day, you decide to buy and hold a stock more than just a daytrade, can selling another stock/ETF in a portfolio to meet the sale price of the new stock be done without incurring any overnight margin?

Or, would 1 days margin still be charged, then 0 after that?

This would be for a margin account with balance well over $25,000.

Thanks

 

Nope, need the margin or cash. It still has to settle in the one day.

 

so what would happen in the scenario in my post? You would get charged margin for 1 day then 0 for the remaining days?