Top 5 Mistakes New Prop Traders Make

Learn From Others' Failures

The prop firm industry reports that most traders fail their evaluations. But failure isn't random—the same mistakes come up again and again. Here are the top five, and how to avoid them.

Mistake #1: Ignoring the Rules

Every firm has specific rules about trading hours, allowed instruments, position sizes, and more. Many traders skim these, assume they're standard, and get disqualified for violations they didn't know existed.

Fix: Read the rules document completely before placing a single trade. Print it out if you have to.

Mistake #2: Oversizing Positions

The excitement of a funded account leads many traders to take larger positions than their normal strategy calls for. This increases variance and often triggers drawdown limits.

Fix: Trade your normal size. The evaluation should mirror how you'll trade when funded.

Mistake #3: Revenge Trading

After a losing trade, the urge to "make it back" is powerful. This emotional trading is the fastest way to blow through your drawdown.

Fix: Set a daily loss limit for yourself that's well below the firm's limit. Walk away when you hit it.

Mistake #4: Not Understanding the Drawdown Type

As we covered in our drawdown guide, misunderstanding trailing vs static drawdown has ended countless evaluations.

Fix: Know exactly how your drawdown is calculated and check it frequently during your session.

Mistake #5: Trading Without a Plan

Prop firm trading is a business. Treating it like gambling will give you gambling results.

Fix: Have a written trading plan before you start. Define your setups, position sizes, and risk limits. Then stick to it.

The Path to Success

Successful prop traders treat evaluations like job interviews. They prepare, follow the rules, manage risk conservatively, and let their edge play out over time. Do the same, and you'll dramatically increase your chances of getting funded.