FundedSizer Blog

Prop Trading Guides

Position sizing, drawdown math, and risk management for funded futures traders. No fluff, no upsells — just the stuff that keeps your accounts alive.

Position Sizing

Position Sizing for Futures: The Complete Guide

The formula, worked examples with MNQ, MES, and NQ, and why guessing your contract count is the fastest way to blow an account.

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Drawdown

What Is Drawdown in Prop Trading?

Static, EOD trailing, intraday trailing, and locked — the four drawdown types every prop trader needs to understand before placing a single trade.

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Risk Management

How to Stop Blowing Prop Firm Accounts

Most traders don't blow accounts because of bad entries. They blow accounts because of bad position sizing. Here are the 3 real reasons — and how to fix them.

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Simulation

Monte Carlo Simulation for Traders

A plain-English guide to Monte Carlo simulation. What those spaghetti charts actually mean and why one backtest will never tell you the full story.

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Done reading? Size your positions.

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Disclaimers & Risk Disclosure

Last updated: March 2026

General Risk Disclosure

Trading futures, stocks, forex, options, cryptocurrencies, or other financial instruments involves a high degree of risk and is not suitable for all investors. You may lose more than your initial investment. Past performance is not indicative of future results.

No Investment Advice

Nothing on FundedSizer, including calculators, simulations, or educational content, should be considered financial, investment, tax, or other professional advice. All tools are provided for informational and educational purposes only. Users are solely responsible for their own trading decisions. Consult a qualified financial advisor before trading.

Calculator & Simulation Accuracy

Position sizing calculators, expectancy tools, and Monte Carlo simulations use simplified mathematical models that cannot account for all real-world trading conditions including slippage, liquidity, partial fills, platform outages, or sudden market events. Results are estimates only and should not be relied upon as guarantees of performance.

No Prop Firm Endorsement

FundedSizer references third-party proprietary trading firms for calculator compatibility. Inclusion of any firm does not constitute an endorsement, recommendation, or verification. We are not affiliated with, sponsored by, or partnered with any prop firm. Firm rules, fees, and account parameters may change without notice.

Hypothetical & Simulated Results

Hypothetical or simulated performance results have inherent limitations and do not represent actual trading. Results may over- or under-compensate for market factors and are subject to hindsight bias. No representation is made that any account will achieve similar results.

By accessing or using FundedSizer, you acknowledge and agree to these disclaimers. If you do not agree, please do not use the site.