# simple_trader `aiomql.contrib.traders.simple_trader` — Simple trader (with stop loss). ## Overview The `SimpleTrader` places trades with a stop loss and calculates volume based on risk assessment via the [`RAM`](../../lib/ram.md) instance. ## Classes ### `SimpleTrader` > Places risk-managed trades with a stop loss. Inherits from [`Trader`](../../lib/trader.md). #### `place_trade(*, order_type, sl, parameters=None)` Places a market order with the given `order_type` and `sl` (stop loss). The volume is calculated using the `RAM` instance based on the stop-loss distance.