Dynamic leverage (also called dynamic margin) automatically changes the leverage on a client's positions according to rules the broker sets: lower leverage on larger position sizes, around scheduled news releases, before weekends and holidays, or when the broker's own exposure on a symbol is high. Small positions keep normal leverage, while large or risky positions need more margin. This reduces the risk of losses beyond deposits during sharp moves and gaps, and protects the broker's capital. On MT5 and MT4 it is usually set up with a server plugin.
Looking for a dynamic leverage plugin? Leverage rules by size, news, weekends and exposure for MT5 and MT4.
Fixed leverage treats every position the same, whether it is a micro lot on a quiet Tuesday or a large position held into a central-bank announcement. Dynamic leverage changes the margin requirement according to risk. It has become standard for brokers who want to offer attractive leverage without taking unlimited gap risk.
How dynamic leverage works
The broker sets rules, and the platform plugin applies them to each client's positions automatically. The most common types are:
- By position size or volume tier: the first part of a position uses full leverage, and larger parts use progressively less.
- By news event: leverage is reduced for a set period before and after scheduled high-impact releases.
- By time: leverage is reduced before the weekend close and over holidays, when gaps are more likely.
- By exposure: leverage is reduced on symbols where the broker's net exposure is already high.
- By client group: different rules for retail, professional and VIP groups.
Example: volume-tier leverage
| Position size (EURUSD) | Leverage applied |
|---|---|
| Up to 5 lots | 1:500 |
| 5 to 20 lots | 1:200 |
| 20 to 50 lots | 1:100 |
| Above 50 lots | 1:50 |
This is an illustrative example only. Brokers choose their own tiers by symbol group, and regulated brokers must also respect the maximum leverage limits set by their regulator.
News and weekend rules
Around major scheduled events, such as interest-rate decisions or employment reports, prices can jump past stop-losses. A news rule might reduce leverage on the affected currencies from a set number of minutes before the release until shortly after. A weekend rule reduces leverage on positions held over the Friday close. Some brokers apply it only to new positions, others to all open positions after a warning period.
Why brokers use dynamic leverage
- It protects against losses beyond deposits and negative balances during gaps.
- It lets the broker advertise competitive leverage on normal positions.
- It lowers the capital needed to cover B-book exposure (see broker risk management).
- It reduces margin pressure at your liquidity providers during volatile periods.
Communicating with clients
Dynamic leverage only works well if clients understand it. Publish the tiers and the news and weekend rules on your website and in your terms, show the margin requirement before a position is opened, and send reminders before scheduled events. Clients who are surprised by a margin call tend to complain. Clients who were informed in advance usually accept the rules.
Setting it up on MT5 and MT4
MetaTrader's standard margin settings are limited, so most brokers use a dynamic leverage plugin on the server. It applies the rules in real time, reads an economic calendar for news windows, and is managed from a web dashboard. See essential MT5 plugins for brokers for other plugins that often go with it.
Leverage limits for retail clients are set by regulators in many countries. Make sure your configuration complies with your licence. This article is general information, not advice.