As others have mentioned, other brokerages have tried offering zero-cost or ultra-low-cost trades, only to slowly restrict the number of free trades available a

As others have mentioned, other brokerages have tried offering zero-cost or ultra-low-cost trades, only to slowly restrict the number of free trades available and eventually move to charging for all trades. Zecco was the most prominent. I'll be interested to see if they can find a sustainable business model. I'm on the fence about whether I'm going to open an account. Even if they go under, there's basically zero risk to customer funds, but it is a hassle to do paperwork on another account.