# Trader

*Careers & Credentials — Finicade finance glossary*

A trader executes and manages positions, and the title covers several different jobs. A flow or market-making trader profits from spreads and inventory management while serving client orders; a prop trader takes directional risk with firm capital; a buy-side execution trader implements a portfolio manager's decisions at the best achievable price. Automation has shrunk all three and raised the technical bar.

**Also known as:** market maker role, flow trader, execution trader

**Related terms:** [Market Maker](https://finicade.com/glossary/market-maker), [Proprietary Trading](https://finicade.com/glossary/proprietary-trading), [High-Frequency Trading](https://finicade.com/glossary/high-frequency-trading), [Bid-Ask Spread](https://finicade.com/glossary/bid-ask-spread), [Position Sizing](https://finicade.com/glossary/position-sizing)

Source: https://finicade.com/glossary/trader