What is MM Account in Stocks?

Types of Stocks Accounts MM

Market Maker Stock Accounts

Market Maker are stocks broker accounts where Market Maker stocks brokers have a dealing-desk where they can match orders in house without going to the online interbank stocks market.

Stocks orders can also be executed against their traders - meaning the broker can take the opposite side of a traders open trades.

This stocks broker can make the decision to either execute a stocks order that's the opposite of a stocks trader's order thus if the trader makes a loss the broker makes a profit, & if stocks trader makes a profit the broker makes a loss.