← Back to Blog · 2026-10-24 · 7 min read · Challenge Guide

You are three days into a China futures evaluation. The market is chopping sideways, your P&L is flat, but the real pressure isn't the lack of profit—it's the psychological weight of the 5% max drawdown limit. You take a small loss. Then another. Suddenly, you're down 2%. Your heart rate spikes. You double your lot size on the next Rebar breakout, hoping to recover in one trade. You get stopped out. You are now down 3.5%. One more bad tick on Iron Ore, and you fail the challenge.

This scenario is not hypothetical; it is the graveyard of retail traders attempting prop firm challenges. The 5% max drawdown rule is not just a number; it is a mathematical constraint that dictates your entire risk architecture. If you treat it like a suggestion, you will fail. If you treat it as the primary variable in your equation, you have a chance.

Designing a trading plan for Chinese commodity futures requires a different mindset than trading FX or US equities. The volatility profile, contract specifications, and liquidity dynamics of the Shanghai Futures Exchange (SHFE) and Dalian Commodity Exchange (DCE) demand precision. Here is how to build a plan that keeps you alive long enough to win.

Understand the Contract Specs Before You Touch a Lot

Most traders fail because they apply risk management rules based on vague "percentage of account" logic without understanding the dollar (or RMB) value of a single tick. In China futures, the contract multiplier is your enemy if ignored, and your best friend if understood.

Let's look at two of the most popular contracts for traders looking to trade Rebar and Iron Ore:

• Rebar (RB): Traded on the SHFE. The contract size is 10 tons per lot. The tick size is CNY 1. This means one tick movement equals CNY 10. If Rebar moves 100 ticks (100 CNY), that is CNY 1,000 per lot.
• Iron Ore (I): Traded on the DCE. The contract size is 100 tons per lot. The tick size is CNY 0.5. This means one tick movement equals CNY 50. If Iron Ore moves 10 ticks, that is CNY 500 per lot.

Notice the disparity? A 10-tick move on Iron Ore hits you five times harder than a 10-tick move on Rebar. If you are running a 5% max drawdown rule on a $5,000 (approx. CNY 36,000) evaluation account, your total allowable loss is CNY 1,800. If you trade one lot of Iron Ore with a 10-tick stop loss, you are risking CNY 500. That is 27.7% of your total drawdown allowance on a single trade. One bad trade consumes nearly a third of your lifeline. This is why Chinese commodity futures require tighter stop-loss logic or smaller position sizing than many Western traders expect.

The Math of Survival: Position Sizing for 5% Drawdown

A 5% max drawdown is a daily or total relative to peak equity constraint, depending on the specific evaluation rules. For this guide, we assume the common "trailing max drawdown" model where you cannot drop more than 5% from your highest equity peak. This creates a dynamic risk ceiling.

Your position size must be inversely proportional to your stop-loss distance. Do not start with "I want to trade 2 lots." Start with "I want to risk 1% of my account per trade." On a $5,000 account, 1% is $50 (approx. CNY 360).

Let's apply this to our examples:

• Rebar: If your technical analysis suggests a 30-tick stop loss, your risk per lot is CNY 300 (30 ticks x CNY 10/lot). With a CNY 360 risk budget, you can trade 1 lot of Rebar. You are slightly over-budget, but manageable.
• Iron Ore: If you use the same 30-tick stop loss logic, your risk per lot is CNY 1,500 (30 ticks x CNY 50/lot). With a CNY 360 risk budget, you cannot trade even 0.1 lots (if fractional trading were allowed, which it generally isn't for retail on these exchanges). This means Iron Ore is too volatile for a small account with tight drawdown constraints unless you use extremely wide stops or reduce leverage drastically.

Actionable Rule: For accounts under $10,000, prioritize contracts with lower tick values relative to your account size. Rebar, Methanol, and PVC are often more accessible for smaller evaluations than Iron Ore or Crude Oil. If you must trade high-volatility assets like Iron Ore, you need a larger evaluation account or a wider stop-loss strategy that relies on structural levels rather than fixed tick counts.

Defining Your Edge: Volatility-Adjusted Stops

Fixed stop-losses fail in China futures because volatility clusters. A 20-tick stop on Rebar might be safe during the Asian lunch break but suicidal during the opening auction or the US data release overlap. To survive a futures evaluation, your stops must breathe with the market.

Use the Average True Range (ATR) to normalize your stops. A common approach is setting your stop-loss at 1.5x the 14-period ATR on your trading timeframe. This ensures that normal market noise does not stop you out, but a genuine trend reversal does.

Pro Tip: Calculate your ATR in ticks, not currency. If the ATR(14) on 5-minute Rebar is 15 ticks, your stop is 22.5 ticks. Round up to 23 ticks. Now, calculate your position size based on that 23-tick risk. If that size is less than 1 lot, you must either widen your timeframe or choose a different instrument. You cannot force a trade that doesn't fit the math.

Psychological Circuit Breakers

The biggest threat to your 5% drawdown limit is not market volatility; it is tilt. When you lose 2% in two trades, the urge to "make it back" is powerful. This is where your trading plan must include hard-coded rules that override your emotions.

Implement a "Daily Loss Limit" that is stricter than the evaluation's max drawdown. If your evaluation allows a 5% max drawdown, set your personal daily loss limit at 2%. If you hit 2% in a single day, you stop trading. No exceptions. This preserves 3% of your drawdown allowance for the next day. It sounds conservative, but in a prop firm environment, consistency beats brilliance. One day of reckless recovery trading can wipe out weeks of steady profits.

The "Two-Loss" Rule

After two consecutive losses, take a mandatory 15-minute break. Step away from the screen. Check your bias. Are you trying to predict the market, or are you reacting to price action? This micro-interruption is crucial for maintaining objectivity in China futures trading, where momentum can be fierce and false breakouts are common.

Practical Application: A Sample Weekly Plan

Let's synthesize this into a concrete plan for a trader with a $5,000 account aiming to pass a 5% max drawdown evaluation.

This plan is boring. It is slow. It will not double your account in a week. But it is designed to ensure that after 20 trades, you are still in the game. In a China futures challenge, survival is the first skill. Profitability is the second.

Why Context Matters: Trading the Chinese Economic Cycle

Unlike US futures, which often react to Federal Reserve policy and global risk sentiment, Chinese commodity futures are heavily driven by domestic industrial demand and government policy. Rebar and Iron Ore are proxies for China's construction sector. When the government announces infrastructure stimulus, these commodities rally. When regulatory crackdowns on property developers occur, they sell off.

A robust trading plan includes an economic calendar filter. Do not open new positions 10 minutes before major Chinese PMI data releases or LPR (Loan Prime Rate) announcements. The volatility spike can trigger stop-losses regardless of your technical setup. Wait for the dust to settle. This discipline alone can save you from unnecessary drawdowns.

Test Your System in a Real-World Environment

Backtesting is useful, but it lacks the psychological pressure of real money and real spread. The best way to validate your 5% drawdown strategy is to trade it in an environment that mimics the constraints of a professional prop firm. You need to see how your system handles consecutive losses and how you react to drawdown pressure.

You can test your system on a real-data China futures evaluation at XS Select. Starting from $29, it provides a low-stakes environment to verify if your position sizing and risk management rules hold up under pressure. It is not about proving you can make money overnight; it is about proving you can follow your plan when the market tries to break you.

Remember, the market is not obligated to pay you. Your job is to manage risk so that when the opportunity arises, you are still in a position to capture it. Stick to the math, respect the contract specs, and let the 5% rule be your guide, not your anxiety.