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Fixed lot or risk percent for copied signals

A fixed lot risks a different amount on every signal, risk percent keeps it level. Five signals side by side, and how to choose for your room.

Fixed lot or risk percent comes down to one question: does the room use roughly the same stop size on every signal? If it does, a fixed lot risks about the same money each time and is the simpler choice. If the stops vary a lot, risk percent keeps the money at risk level by changing the lot, and a fixed lot does not.

CopySignals is a cloud Telegram signal copier for MT4, MT5 and eTrader: it reads the rooms you already follow through your own Telegram account and places the trades on your own broker account. Fixed lot and percent of the account are the two sizing methods that work on a Telegram room, and this page puts them side by side on the same five signals so you can see where they part.

What is the difference between a fixed lot and risk percent?

A fixed lot is one number: every copied trade is placed at, say, 0.30 lots, whatever the signal says. Risk percent works backwards from the stop in the signal: you choose how much of the account you accept losing, and the lot is whatever makes the stop cost that amount. In CopySignals the second is called percent of the account, measured against the signal's own stop, and both are capped by the account's maximum lot.

The arithmetic behind the second one is on our page about risk percent lot size on a signal copier. Here we skip the derivation and look at what the two methods do to your account across a run of signals.

What do the two methods do on the same five signals?

The numbers below are invented to show the arithmetic. They are not a real room and not a forecast. The account holds 10,000 USD, the pair is EURUSD, and we assume a 100,000 unit lot, so one pip is worth 10 USD per lot. Fixed lot is 0.30, which is 3 USD a pip. Risk percent is 1%, so 100 USD is at risk on each trade, and the lot is rounded down to the 0.01 step.

SignalStop distanceMoney lost at the stop, fixed 0.30 lotsLot at 1% riskMoney lost at the stop, 1% risk
115 pips45 USD0.6699 USD
230 pips90 USD0.3399 USD
345 pips135 USD0.2299 USD
460 pips180 USD0.1696 USD
525 pips75 USD0.40100 USD

The fixed lot loses between 45 and 180 USD depending on which signal the room happened to post, a fourfold spread. Risk percent loses between 96 and 100 USD every time, and the lot does the moving. If all five hit their stops in a row, the fixed lot costs 525 USD and risk percent costs 493 USD, so the totals are close and the shape is very different.

Look at signal 1 as well. The tight stop pushed the 1% lot up to 0.66, more than double the fixed lot. That is the method working as designed, and it is the reason the maximum lot exists.

When is a fixed lot the better choice?

A fixed lot is better when the stop is missing, when stops barely vary, or when you think in lots rather than in money. It is also the method with no surprises: the lot you see in the settings is the lot that gets placed.

  • The room often posts a signal without a stop. Risk percent measures against the signal's own stop, so with no stop there is nothing to divide by.
  • The room trades one style, for example scalps with a stop of 10 to 15 pips every time. The spread in money lost is small, and you gain nothing from the extra arithmetic.
  • Your limit is margin, not loss. If your broker's margin is what stops you from opening more positions, you may prefer to control exposure in lots.

Pair a fixed lot with a low maximum lot on the account, so a settings mistake cannot place a size you did not intend.

When does risk percent do better?

Risk percent does better when the room's stops range widely, when you copy several rooms with different habits into one account, or when your balance moves a lot. The money at risk stays near the same figure while the stop distance changes, so one wide-stop signal cannot cost four times as much as the last one.

It also follows your balance. After a losing run the lot shrinks, and after a gain it grows, with no settings touched. A fixed lot does the opposite of cushioning a drawdown: it stays the same size while the account gets smaller, so the same stop costs a larger share of what is left.

There is a price. A wide stop gives a small lot, so a copied trade can earn a small fraction of what the room's screenshot shows when the target is hit. Read the first few trades before you decide that the copier is broken. For a room with several targets, the take profit weights then divide that smaller position across them, which we cover in handling TP1, TP2 and TP3 in copied signals.

Which method suits a prop firm account?

Either can fit, because the question is your firm's loss rules and not the method. Risk percent makes the worst case per trade easy to state, which helps when a daily loss limit is in play: the number of trades open at once times the percentage is the figure to hold inside it. Your firm sets and measures that limit, so read its rules page and use the figure it gives.

Several signals can arrive close together, so a cap on open positions matters under both methods. Our article on capping open positions when copying several rooms explains how it works. If a funded and a personal account take the same room, sizing is set per account, so the funded one can run risk percent at 0.5% while the personal one runs a fixed lot. The guide to copying several prop firm accounts you own goes through that setup.

What about the other two sizing methods?

CopySignals has two more, and both need a master account. A multiple of the master's lot and the master's lot scaled by balance follow another connected account, so they belong to account to account copying and not to a Telegram room, because a room's post carries no lot to scale. We describe them in the lot multiplier explained and sizing copies proportional to balance.

How do you decide, and test it?

Open the last twenty signals of the room and write down the stop distance on each. If the longest is not more than about twice the shortest, a fixed lot is fine. If the range is wider, or some posts have no stop, you already know which of the two you need.

Then connect a demo account with a balance like your live one, set the method, and let a few signals through. Compare each lot the copier placed with your own calculation, check the symbol specification for the contract size and lot step, and read the event log for anything skipped. Set the maximum lot before the first signal, not after.

Every plan includes the whole product, sizing included, and the plans differ only in how many trading accounts and Telegram accounts they cover. See the pricing page; there is a 30 day money back guarantee. A percentage sets the size of the trade, and it does not limit your loss: slippage, spread and gaps can make the real loss larger. Trading carries risk and the loss is yours.

Our recommendation: use risk percent when the room posts a stop every time and the stops vary, use a fixed lot with a low cap when they do not, and put a maximum lot on the account either way.

Frequently asked questions

Use risk percent if the room posts a stop on every signal and the stop sizes vary. Use a fixed lot if the stops are similar or some signals have none. CopySignals offers both on a Telegram room, each capped by a maximum lot.
No. In CopySignals the percent of the account is measured against the signal's own stop, so a post without a stop gives it nothing to work from. For a room that often leaves the stop out, use a fixed lot with a low maximum lot.
The money lost at the stop is the lot times the stop distance. With the lot fixed and the stop changing from signal to signal, the loss changes with it.
No, it sets the size of the trade. Slippage, spread and gaps can make the real loss larger, and trading carries risk.

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