What is a prop firm?

What it is

A prop firm — short for proprietary trading firm — is a company that provides traders with simulated capital to trade with, in exchange for a share of any profits generated. You trade using the firm's money rather than your own. If you're profitable, you keep a percentage (typically 70–90%). If you lose beyond a set limit, the challenge ends.

In the retail trading world, "prop firm" almost always refers to a specific model: a funded account challenge. You pay a one-off fee, attempt to hit a profit target within defined rules, and if you pass — the firm gives you a larger funded account to trade with real (or simulated) capital.

How it works

The typical prop firm process has two or three stages:

1. Challenge: You pay a fee (typically $100–$600 depending on account size) and trade a simulated account. You must hit a profit target (usually 8–10%) without breaching a maximum drawdown limit (usually 5–10% daily, 10–12% overall) within a set number of days.
2. Verification: Some firms add a second phase with a lower profit target to confirm your performance wasn't a one-off.
3. Funded account: Once you pass, you receive a funded account — typically $25,000 to $200,000 — and trade it under the same risk rules. Profits are split between you and the firm.

Key terms in prop firm challenges

• Profit target: The gain percentage you need to achieve to pass (e.g. 8% in Phase 1)
• Maximum daily drawdown: The most you can lose in a single day before failing (e.g. 5%)
• Maximum overall drawdown: The most your account can fall from its starting value before failing (e.g. 10%)
• Minimum trading days: Some firms require you to trade on at least X days before passing
• Profit split: Your share of profits once funded (typically 70–90%)

A worked example

You pay £150 for a $50,000 challenge with a major prop firm. Rules: 10% profit target, 5% daily drawdown limit, 10% maximum drawdown, 30 trading days.

• Starting balance: $50,000
• Target: reach $55,000 without losing more than $2,500 in any single day or $5,000 overall
• You pass — the firm gives you a $50,000 funded account
• You make $3,000 in month one — you receive $2,550 (85% split), the firm keeps $450

Why it matters

Prop firms let traders access significant capital without risking their own savings. A trader who could only afford a £500 personal account can potentially manage $100,000 of prop firm capital — magnifying both the learning experience and the potential earnings.

They also impose useful discipline. The drawdown rules force traders to manage risk carefully. Many traders who struggle with discipline on their own accounts perform better under prop firm rules because the consequences of rule-breaking are immediate and clear.

Common misconceptions

• Prop firms are not regulated in the same way as brokers. They don't hold client funds in the traditional sense. Most funded accounts operate on simulated capital — the "profit split" is paid by the firm from its own revenue, not from real market trading profits. Regulatory protection varies significantly.
• The challenge fee is not a deposit. It's a fee for the evaluation service. If you fail, it's gone. Some firms offer refunds of the fee if you pass — check the terms carefully.
• Not all prop firms allow EAs. Most do, but some restrict certain EA types (particularly martingale, news trading, or high-frequency strategies). Always check the firm's rules on automated trading before starting a challenge.

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Written and reviewed by the Karnek Research team. Last updated August 2026.

Educational content only - not financial advice. Past performance does not predict future results. Trading carries significant risk.