How EAs Work vs How Copy Trading Works
An EA runs entirely on your own MT4/MT5 terminal (or VPS), executing a coded strategy directly on your account. Copy trading instead mirrors the live trades of a separate master account onto yours in real time, using a copier service rather than independent logic running locally.
Key Differences
The two approaches diverge on several practical points worth weighing before you choose:
- Control & Customization: An EA's inputs (risk per trade, pairs, filters) are fully yours to configure; copy trading gives you far less control over individual trade parameters.
- Cost Structure: EAs are typically a one-time or subscription license fee; copy trading often charges a performance fee on profits generated.
- Transparency: A well-documented EA's logic can be reviewed line by line; copy trading relies on trusting the master trader's ongoing decision-making.
- Dependency: EA performance depends only on the code and your settings; copy trading performance is tied to a specific human trader staying active and consistent.
Which Fits Which Trader Type
Traders who want a fixed, testable, rules-based system tend to prefer EAs, while those who want exposure to a discretionary trader's ongoing decision-making — including manual news reactions an EA can't replicate — often prefer copy trading.
Can You Use Both Together?
Yes — many traders diversify by running one or more EAs on a portion of their capital while copy trading a separate verified account with another portion, spreading risk across uncorrelated approaches.