Except that’s not “what being a broker is”, because not all brokers offer that, and not to all clients. And if you can remember back to your original comment, y

Except that’s not “what being a broker is”, because not all brokers offer that, and not to all clients. And if you can remember back to your original comment, you were calling exchanges sleazy for not having insta-withdrawal (which they can’t in the regulated markets because of settlement time), and now you recognize this is a service provided by brokers as an abstraction on top of the actual exchange, not what said (non-shady) exchange actually offers. Furthermore, the broker is taking a risk by extending that credit. If it were riskless, there wouldn’t be the 2 day settlement period or the requirement to post collateral (whose necessity everyone accepts with an eyeroll at those who don’t get it on the Robinhood/GME threads).