← Back to Blog · 2026-10-08 · 7 min read · Trading Education

It's 22:47 in Shanghai. You're long rebar, comfortably up on the day, and the night session is winding down like it always does. You close the platform, go to bed. At 09:00 the next morning, the market opens limit-down. Your stop never traded. There was no stop. There was just a price, a big one, on the wrong side of your position.

If you've only ever traded CME or Eurex products with near-23-hour access, this scenario is the single biggest structural difference you need to understand before touching Chinese commodity futures. The good news: gap risk in China is manageable — but only if you plan for it before you enter, not after.

Why Chinese Futures Gap Differently Than Western Markets

Chinese futures exchanges — the Shanghai Futures Exchange (SHFE), Dalian Commodity Exchange (DCE), Zhengzhou Commodity Exchange (ZCE), and the Shanghai International Energy Exchange (INE) — run night sessions that end at different times depending on the product:

• Gold and silver on SHFE trade until roughly 02:30 AM Beijing time
• Other SHFE metals like copper and aluminum run to about 01:00 AM
• Most other night-session products — rebar, iron ore, methanol, palm oil, soy complex — close around 23:00
• Day session opens at 09:00

Here's the trap: the night session in China is technically part of the next trading day. So when you hold a position through the night session close at 23:00, you are exposed to everything that happens globally between 23:00 and the 09:00 open — roughly ten hours with zero liquidity in your contract. LME moves, US data drops, a sudden dollar spike, a headline out of Beijing. All of it gets priced in at the open, and it gets priced in all at once.

On top of that, China runs a system of daily price limits. Each contract has a maximum daily move set by the exchange — often in the range of roughly 4% to 12% depending on the product and current exchange settings, and these limits get adjusted dynamically when markets get volatile. A limit move means the market simply stops trading. If the open is locked limit against you, there is literally no exit at any price until the limit unlocks.

Then there's the big one: holidays. Chinese markets shut for extended periods — Golden Week in October and Lunar New Year in late January or February can close Chinese exchanges for a week or more while the rest of the world keeps trading. Positions carried into those closures can open with gaps that make a normal night-session gap look like a rounding error.

Know Your Contract Before You Size It

You cannot control drawdown on a contract you don't fully understand. Here are the specs that matter most for the most-traded Chinese commodity futures:

Two things jump out. First, Chinese contracts are small. A single rebar lot controls 10 tons — at typical prices, notional exposure is a fraction of one crude oil contract. This is a genuine advantage for retail traders: you can size positions in fine increments instead of being forced into oversized risk blocks.

Second, margin requirements on Chinese exchanges are dynamic. After consecutive limit moves in the same direction, exchanges routinely raise margins and widen price limits — a mechanism designed to cool speculation. If you're running a position at minimum margin when that happens, you can face an overnight margin call on top of an adverse move. Always assume margins can go up, not down.

The Pre-Trade Rules That Make Gaps Survivable

Drawdown control isn't what you do during a gap. It's what you did before you entered. Here's the framework we'd suggest for anyone trading Chinese commodity futures through night sessions:

Rule 1: Risk a fixed fraction per idea, not per lot

Cap risk at 1% of account equity per trade, 2% absolute maximum. With a $50,000 account, that's $500 at risk on a rebar position. If your stop is 40 RMB/ton away (40 ticks), each lot risks 400 RMB — roughly $56. That's about 8 lots. Do this math every time. The small contract sizes make precision sizing possible; not using it is a choice, and a bad one.

Rule 2: Your real stop is your gap buffer

Place your hard stop at least one full daily price limit away from your intended exit logic, or don't hold through the night session at all. Think of it this way: your technical stop is what you want to lose. Your gap exposure is what you could lose. If a limit-down open against a full position would blow through your risk budget, the position is too big — regardless of how good the setup looks.

Rule 3: Never carry full risk into a holiday closure

This should be non-negotiable. Reduce to a token size or flat before Golden Week and Lunar New Year. A week of closed Chinese markets is an eternity for industrial commodities that trade globally. Whatever edge you think you're carrying into the holiday is not worth the open you'll face on the other side.

Rule 4: Treat the 23:00 close as your decision point

If you wouldn't happily hold the position blind for ten hours, flatten it. The night session gives you a window to exit at liquid prices. The 09:00 open does not promise you one.

What the History Books Say About Gaps in China

You don't need obscure data to understand this risk — the famous cases are well known. In the autumn of 2021, China's thermal coal market went through one of the most dramatic reversals in recent commodity history. Prices had rallied hard through the year on supply tightness, then policy intervention aimed at cooling coal prices triggered a collapse — the market fell by roughly half in a matter of weeks, with repeated limit-down sessions along the way. Traders who were long and had sized assuming normal volatility had no realistic exit on the worst days. The limit system didn't just slow the decline; it trapped positions inside it.

Earlier, in spring 2020, the oil price crash showed the same mechanics in a different form — crude collapsing to unprecedented levels, with INE's crude contract hit by expanded limits and margin hikes as exchanges scrambled to manage the volatility. Positions that looked fine on Monday were unsalvageable by midweek.

The lesson from both isn't "don't trade Chinese commodities." It's that limit moves and gaps are a feature of these markets, not a malfunction. Your risk model has to assume that on some days, your exit simply won't exist.

When You're Already Gapped Against: The Recovery Math

So it happened. The market opened limit-down, you're stuck, and your equity just took a hit you didn't authorize. What now?

First, understand the asymmetry you're fighting. Drawdown recovery is brutally nonlinear:

• Loss of 10% needs an 11% gain to recover
• Loss of 20% needs a 25% gain
• Loss of 40% needs a 67% gain
• Loss of 50% needs a 100% gain

This math is the entire argument for pre-trade sizing. A gapped position that costs you 2% is an annoying Tuesday. A gapped position that costs you 15% is a different trading career.

Second, do nothing heroic on the gap day. The most expensive mistake after an adverse gap is immediately doubling down to "get it back" — usually into a market that's still locked or wildly unstable. If the limit unlocks and you want out, take the exit and re-evaluate with a clear head. If your original thesis is somehow intact and the position is still within your risk budget, fine — but that decision should be made against your plan, not against your emotions.

Third, cut your next position size until you've stabilized. After any gap-driven loss, halve your normal size for your next several trades. This isn't cowardice; it's acknowledging that your recent market read has been proven wrong and your information edge is temporarily diminished.

A Practical Night Session Checklist

Before you hold any Chinese futures position through a night session close, run through this:

• Worst-case open: What does a full limit move against me cost in dollars? Does it stay within my account risk limits?
• Liquidity check: Is this contract liquid in the night session, or does volume dry up after 21:30? Thin night sessions make even small exits expensive.
• Event calendar: Any US data, Fed decisions, or Chinese policy events landing between 23:00 and 09:00 Beijing time?
• Holiday proximity: Am I within two trading days of an extended exchange closure? If yes, reduce or exit.
• Margin buffer: Am I using minimum exchange margin? If the exchange hikes requirements after volatility, can I cover it?
• Correlation exposure: Am I long rebar AND long iron ore? Those aren't two trades — they're one trade with double the gap exposure.

If any answer makes you uncomfortable, the market is telling you something your entry signal didn't.

Testing the System Before the Market Tests You

Everything above sounds sensible in a blog post. It gets much harder at 22:55 with a winning position and a strong temptation to "just let it ride one more night." That gap between knowing and doing is exactly why structured evaluation matters — you find out whether your risk rules actually survive contact with real market conditions, including the sessions that close and the opens that gap.

That's the idea behind XS Select. We run evaluations on real Chinese futures data — rebar, iron ore, and the rest of the major Chinese commodity contracts — so you can pressure-test your drawdown control against the market's actual structure: the night session closes, the price limits, the holiday gaps. If you want to see how your system holds up, evaluations start from $29. No pressure either way — the checklist above is free, and it'll already put you ahead of most traders who learn about gap risk the expensive way.

Trade the night session with respect, size for the open you can't control, and your drawdown curve will thank you at 09:00 sharp.