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Introduction to Risk-Reward Ratio and Position Sizing

Infographic with title, Introduction to Risk-Reward Ratio and Position Sizing.

 

If there’s one thing that separates traders who survive from traders who burn out fast, it’s this:

They understand risk before they think about reward.

Most beginners focus on how much they can make.
Experienced traders focus on how much they’re willing to lose.

That shift in mindset changes everything, and it starts with two ideas:

  • risk–reward ratio
  • position sizing

Let’s break both down in a simple, practical way that actually helps you trade better.

What is the Risk–Reward Ratio in Trading?

The trading risk–reward ratio compares:

  • how much you risk on a trade
  • versus how much you expect to make

It’s usually written like this:

  • 1:1
  • 1:2
  • 1:3, and so on

Risk reward ratio example

Why Risk – Reward Ratio Matters More Than Win Rate

Here’s something many beginners don’t realize:

Whether you trade futures, forex or commodities, you don’t need to win most of your trades to be profitable.

If you:

  • risk 1 unit
  • make 2 or 3 units when you win

You can still make money even with a modest win rate.

For example:

  • 5 losses at 1 unit = –5
  • 3 wins at 2 units = +6

You’re profitable – even though you lost more trades than you won.

That’s the power of good risk–reward.

What Is the Best Risk-Reward Ratio in Trading?

There’s no single “perfect” number.

But in general:

  • 1:1 is usually too tight for most traders
  • 1:2 is a healthy minimum
  • 1:3 or higher is excellent if the setup allows

The key is balance.

A high risk–reward doesn’t help if the trade almost never works.
A high win rate doesn’t help if losses are bigger than wins.

Risk–Reward Without Discipline Doesn’t Work

Here’s a common beginner mistake:

  • Setting a nice 1:3 target
  • But cutting winners early
  • And letting losers run

On paper, the plan looks great.
In execution, it falls apart.

Risk–reward only works if:

  • stops are respected
  • targets are honored
  • emotions are kept in check

Now Let’s Talk About Position Sizing in Trading

Risk–reward tells you where to place stops and targets.

Position sizing tells you how much to trade.

It answers one critical question:

“How big should this trade be?”

Why Position Sizing Is So Important

Two traders can take the same setup… and get very different results.

Why?

Because position size changes everything:

  • emotional pressure
  • drawdowns
  • account survival

Poor position sizing turns small mistakes into big damage.

How Position Sizing Works 

Most traders risk a fixed percentage of their account per trade.

Common ranges:

  • 1% risk per trade
  • 2% risk per trade

Example:

  • Account size: $10,000
  • Risk per trade: 1%
  • Maximum loss allowed: $100

No matter the setup, no matter the market, you don’t risk more than that amount.

Position Sizing and Stop-Loss Go Together

Your position size depends on:

  • how far your stop-loss is
  • how much you’re willing to risk

Wider stop = smaller position
Tighter stop = larger position

This keeps risk consistent – even when setups change.

Why Beginners Struggle With Position Sizing

Most beginners:

  • trade random sizes
  • go bigger after wins
  • go smaller after losses

That creates emotional trading.

Position sizing removes guesswork and replaces it with structure.

How Risk–Reward and Position Sizing Work Together

These two concepts are partners.

Risk–reward defines:

  • the quality of the trade

Position sizing defines:

  • The impact of the trade

Together, they:

  • Protect your account
  • Smooth out performance
  • Reduce emotional swings

A Simple Rule to Remember

If you remember just one thing, make it this:

Good trades are about controlled losses, not big wins.

The wins take care of themselves when risk is managed properly.

Final Thoughts: This Is Where Real Trading Begins

Risk–reward ratio and trading position sizing might not sound exciting.

They won’t give you adrenaline.
They won’t go viral on social media.

But they’ll keep you in the game.

And in trading, staying in the game long enough to learn is the real edge.

Master these basics early, and you build a foundation most traders never do.

About the Author: Sam Saleh

Sam Saleh, a London-based trader, began his trading journey at 19 while studying Business at the University of Bedfordshire. With expertise in trading and a background in marketing, he now coaches at Hola Prime, where he develops educational content aimed at building trader confidence, consistency, and financial literacy.

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FAQs

What is a risk reward ratio in trading?

It is a simple calculation that compares how much you risk on a trade versus how much you plan to gain. For example, risking 10 dollars to make 20 dollars is a 1:2 risk reward ratio.

Why is the risk reward ratio important?

It helps you choose trades that can still be profitable even if your win rate drops. A good ratio protects your equity over the long run.

What is position sizing?

It is deciding how large your trade should be based on your account size and risk limit. Proper sizing ensures one trade never does too much damage.

How do I decide my position size?

Most traders risk a small percentage of their account per trade. Once you know your stop loss distance, you calculate the lot size that fits your risk plan.

Can a good risk reward ratio make up for a low win rate?

Yes. Even if you win fewer trades, higher reward targets mean you can still end up profitable.

Do prop firms check the way I manage risk?

They do. Prop firms expect traders to follow rules and manage risk responsibly. Good position sizing is key to staying funded.

What is a simple starting point for new traders?

Aim to risk a small amount per trade and target at least double that in potential profit. Stick to your plan even when emotions push you to change it.