Market Order

Limit Order

An order to buy or sell a stock at a specific price or better. A buy limit order only executes at the limit price or lower; a sell limit order only at the limit price or higher. Offers price control but may not fill.

Stop-Loss Order

An order that automatically sells a stock when it falls to a specified price, limiting potential losses. A stop-loss at $90 on a $100 stock would sell if the price drops to $90, capping the loss at 10%.