← Back to Blog · 2026-10-20 · 7 min read · Trading Education

It happens to every trader at least once. You spend weeks backtesting a strategy on Chinese commodity futures. The equity curve looks like a staircase to heaven. You feel invincible. Then, you enter a simulated trade on Shanghai Rebar (RB), the market gaps against you, your stop-loss triggers, and suddenly you are down 15% in an hour. The strategy wasn't wrong; your risk management was.

In the world of proprietary trading and funded evaluations, drawdown is not just a number—it is the primary metric that determines survival. Whether you are aiming to pass a futures evaluation platform or simply managing personal capital, the ability to control drawdown is more important than your win rate. A 90% win rate strategy can blow up an account if the 10% losers are too large. Conversely, a 40% win rate strategy can print money if the losses are tightly capped.

For traders navigating the specific volatility of Chinese markets, standard textbook advice often falls short. The contracts are unique, the liquidity varies by session, and the tick values differ from US equities or forex. This guide breaks down practical, actionable techniques to keep your drawdown within survival limits when trading rebar, iron ore, and other key Chinese commodities.

1. Know Your Contract Specs: The Math Behind the Risk

You cannot manage risk if you do not know the exact dollar cost of a single tick. In US futures, many traders operate in a vacuum, guessing their exposure. In China futures, you must be precise. Every contract on the Shanghai Futures Exchange (SHFE) or Dalian Commodity Exchange (DCE) has a specific multiplier and tick size. If you are trading iron ore (I) on the DCE, you must know that one tick is 0.5 yuan, and the multiplier is 100 tons per lot. That means one tick move costs you 50 RMB.

Let’s look at the most popular contract for retail traders: Rebar Steel (RB) on the SHFE.

Actionable Rule: Before you place a single order, calculate your "Max Pain" per lot. If your account is $2,000 (approx. 14,500 RMB) and your maximum daily drawdown limit is 5% (725 RMB), you cannot afford to risk more than 725 RMB on any single trade setup. If you are trading Iron Ore, where each tick is 50 RMB, a 15-tick stop loss equals 750 RMB. You are already over your limit. You must either reduce your position size to fractional lots (if your platform supports it) or widen your stop, which usually degrades the strategy's edge. Know the math before you click.

2. The 1-2% Rule and Position Sizing Logic

The most common cause of catastrophic drawdown is "sizing up" after a winning streak. This is psychological gambling disguised as trading. To survive a futures evaluation, you must treat position sizing as a rigid mechanical rule, not an artistic choice.

Fixed Fractional Sizing

The gold standard for prop firm survival is risking 1% to 2% of your total equity per trade. Let’s apply this to a trade on Shanghai Crude Oil (SC) on the INE exchange.

• Account Size: $10,000
• Risk per Trade: 1% ($100)
• Contract Spec: SC multiplier is 1000 barrels. Tick size is 0.1 RMB. Tick value is 100 RMB (approx $14).
• Stop Loss: You identify a technical invalidation point 20 ticks away.
• Calculation: 20 ticks * $14/tick = $280 risk per lot.
• Position Size: $100 allowed risk / $280 risk per lot = 0.35 lots.

Since you cannot trade 0.35 lots, you have two choices: widen your stop to 40 ticks (reducing risk per lot to $140, allowing 0.7 lots, which still rounds to 0 or 1 depending on leverage rules) or skip the trade. Many traders mistakenly force a full lot here, risking $280 (2.8%) on a single trade. One bad day of three such losses puts you at 8.4% drawdown, dangerously close to a 10% max drawdown breach.

3. Correlation Is Not Diversification

New traders often believe that trading five different Chinese commodities protects them from drawdown. They buy Rebar, buy Iron Ore, buy Coking Coal, buy Copper, and buy Gold. They think they are diversified. They are wrong.

Black chain commodities (Rebar, Iron Ore, Coking Coal) are highly correlated. They are driven by the same macroeconomic factors: Chinese property sector data, infrastructure spending, and industrial production. When the black chain sells off, it often sells off together. If you are long three black chain contracts, you do not have three positions; you have one massive position with triple the leverage.

Practical Application: Limit your "Cluster Risk." If you are long Rebar, do not open a new long position in Iron Ore or Coking Coal on the same day. Instead, look for uncorrelated plays. If you are long the black chain, consider looking at agricultural commodities (like Soybean Meal on DCE) or financial futures (like CSI 300 Index IF) for your second position. This ensures that a sudden drop in industrial sentiment does not wipe out your entire account in a single morning session.

4. Managing Gap Risk and Overnight Holds

Chinese futures markets have specific session structures. The night session (21:00–23:00 or later, depending on the contract) is highly liquid and reacts to global news. The day session opens at 09:00. The biggest drawdown events often occur at the open, as overnight global moves (like US equity crashes or commodity spikes) cause the Chinese market to gap.

A famous example is the 2020 crude oil crash. While this affected global markets, similar dynamics occur in Chinese energy and industrial metals. If you hold a position overnight without a hard stop, you are exposed to "gap risk." Your stop-loss order only triggers when the price trades through it. If the market opens 50 ticks below your stop, you are filled at the open price, not your stop price.

How to Control This:

• Reduce Size for Overnight Holds: If you must hold through the daily close, reduce your position size by 50%. This accounts for the potential for a 2x or 3x normal daily range due to gaps.
• Use Time-Based Exits: If a trade has not moved in your favor by the end of the day session, consider closing it. Many intraday setups lose their edge if they drag into the next day.
• Watch the News Calendar: Avoid holding positions through major Chinese economic data releases (like PMI or GDP) unless you have a specific, high-conviction thesis. The volatility spike can trigger stop hunts.

5. The Daily Loss Limit: Your Circuit Breaker

Most futures evaluation platforms and prop firms have a "Daily Drawdown Limit" in addition to a "Max Total Drawdown." This is the silent account killer. You might be fine on your total equity, but if you lose 5% of your account in one day, you are disqualified, even if you recover the next day.

To survive, you need a personal circuit breaker. A common rule among professional traders is the "Three Strike" rule or a hard daily dollar cap.

Example Protocol:

"If I lose 2 trades in a row, I reduce my position size by half for the next trade. If I hit my daily loss limit (e.g., 2% of equity), I shut down my platform. No exceptions."

This sounds simple, but it is emotionally difficult. When you are down, the urge to "win it back" is overwhelming. This is called revenge trading, and it is the fastest way to breach a drawdown limit. By forcing yourself to sit on your hands, you prevent the small loss from becoming a catastrophic one.

Practical Application: A Checklist for Your Next Trade

Before you execute your next trade on Rebar, Iron Ore, or any other Chinese commodity, run through this checklist. If you cannot check every box, do not take the trade.

1. What is my max risk in RMB/USD? (Calculate 1% of account).
2. What is the tick value of this specific contract? (Check the exchange specs).
3. Where is my logical stop loss? (Not a random number, but a technical level).
4. How many ticks is that stop?
5. How many lots can I afford? (Max Risk / (Tick Value * Tick Distance)).
6. Am I already exposed to this sector? (Check correlation with existing positions).
7. Is there major news in the next 2 hours? (Check economic calendar).

If the math says you can only trade 0.5 lots, but your platform requires 1 lot, you must change your stop distance or skip the trade. There is no shame in skipping trades. There is no glory in taking a trade that violates your risk parameters.

Closing Thoughts

Drawdown control is not about predicting the market correctly. It is about surviving the times you are wrong. In the volatile world of Chinese commodity futures, the market will eventually prove you wrong. Your job is to ensure that when it does, you are still in the game.

Consistency beats intensity. A trader who makes 1% a week with controlled drawdowns will always outperform the trader who makes 20% a week and then blows up in a single day. Focus on the process, respect the contract specs, and let the compounding do the work.

If you are serious about refining your risk management skills without risking real capital, testing your system in a realistic environment is the next logical step. You can test your drawdown control and strategy edge on a real-data China futures evaluation at XS Select, starting from $29. It’s a low-cost way to prove your discipline before you scale up.