← Back to Blog · 2026-10-05 · 8 min read · Market Preview

It's Sunday evening. You've checked the CME metals complex, skimmed the Fed calendar, and you feel ready for the week. Then Tuesday comes, and Shanghai copper rips 2% overnight on something you never saw coming — a liquidity injection announcement from the People's Bank of China, or a sudden drawdown in warehouse receipts that nobody on your feed was talking about.

If you trade Chinese commodity futures — or you want to — this is the blind spot that separates traders who survive from traders who get run over. The good news: the two most powerful weekly signals in Chinese metals markets are free, public, and readable in about fifteen minutes. This article shows you exactly how to read them, and how to turn them into concrete positioning decisions.

Why Warehouse Receipts Are the Closest Thing China Has to a Truth Serum

In Western markets, you probably watch COMEX inventory reports or LME stock levels. China has its own version, and it's arguably more informative because the Chinese physical market is enormous and less financialized.

Here's the mechanics. When a producer or trader wants to deliver against a futures contract on the Shanghai Futures Exchange (SHFE) or the Dalian Commodity Exchange (DCE), the metal must first be registered as a standard warehouse receipt at an exchange-designated warehouse. The exchanges publish warehouse receipt data on a regular schedule — SHFE updates weekly for most metals, DCE publishes daily for iron ore.

Three readings matter, and each tells a different story:

• Rising receipts with falling prices: Sellers are registering metal to deliver. Physical sellers are motivated. This confirms a bearish trend — the market is telling you the selling isn't finished.
• Falling receipts with rising prices: Metal is being pulled out of exchange warehouses, often because consumers are taking delivery or holders see backwardation and want the physical. This is the classic confirmation of a genuine demand-driven rally.
• Falling receipts with flat or falling prices: Be careful here. This can mean someone is cornering available deliverable supply — a squeeze setup. When receipts get very low relative to open interest, short-dated contracts become vulnerable to violent squeezes.

The third scenario is the one that burns people. If you're short a nearby Chinese metal contract and the receipt-to-open-interest ratio gets thin, you're not trading against sentiment anymore — you're trading against someone who controls physical delivery. Traders who have been on the wrong side of a squeeze in any market know exactly how that movie ends.

Where to Find the Data

• SHFE: Weekly warehouse receipt bulletins, broken down by metal and delivery warehouse region (Shanghai, Jiangsu, Guangdong, etc.).
• DCE: Daily iron ore warehouse receipt data, published on the exchange website.
• Social inventory: For rebar and other steel products, traders also track third-party survey data on visible inventories in major cities — this fills the gap because rebar is delivered from steel mills and warehouses that don't always map cleanly to exchange receipts.

Don't just look at the level. Look at the rate of change week over week, and compare it against the seasonal pattern. A drawdown in copper receipts in March means something different than the same drawdown in December ahead of Chinese New Year, when physical demand structurally slows.

PBOC Liquidity: The Other Half of the Equation

Chinese metals are, at their core, a bet on Chinese construction, manufacturing, and credit. And credit starts with the People's Bank of China. You don't need to read Chinese or parse every policy document — you need to watch three things.

1. Open Market Operations (OMO)

Every business day, the PBOC announces how many seven-day reverse repos it's injecting and at what rate. Two signals matter:

• Net injections versus maturities: If the PBOC rolls over far more than matures, it's adding liquidity — supportive for risk assets including commodities.
• Changes in the seven-day reverse repo rate itself: This is one of China's key policy rates. A cut here is a major macro event. The PBOC has used these cuts sparingly but decisively in recent years, and each one has moved Chinese rate-sensitive assets immediately.

2. MLF and the Medium-Term Signal

The Medium-term Lending Facility (MLF) is the PBOC's tool for feeding longer-duration liquidity to banks. The MLF rate also anchors the Loan Prime Rate (LPR), which is the pricing reference for corporate loans — including, indirectly, the financing costs of property developers and steel traders. When you see an MLF rate cut, ask: is this a response to weak credit demand? If yes, it's a signal that the property chain — the demand engine for rebar and iron ore — is under pressure, and the easing is defensive, not stimulative. That distinction matters enormously for how metals respond.

3. DR007 — The Rate That Doesn't Lie

The 7-day interbank repo rate (DR007) is where policy meets reality. If the PBOC announces big injections but DR007 keeps trading above the policy rate, liquidity is still tight in practice. If DR007 sits comfortably below the OMO rate, the easing is real and transmitting. For a metals trader, sustained cheap interbank funding plus improving credit data is the backdrop in which demand-driven rallies in rebar and iron ore tend to run further than the consensus expects.

Remember the pattern from history: the massive rebar and iron ore rally through 2016 into 2017, driven by the supply-side reform cutting steel capacity, coincided with an accommodative liquidity environment. And the 2021 thermal coal episode — where prices roughly tripled before regulators stepped in with supply measures and exchange-level interventions like raised margins and price limits — happened in a year of strong credit growth followed by an energy shortage. Liquidity doesn't cause every move, but it sets the ceiling and floor on how far fundamental moves can extend.

Know Your Instruments: Contract Specs You Should Have Memorized

None of this analysis matters if you don't understand the vehicles. Here's a quick reference for the contracts most global traders start with:

Three practical notes. First, Chinese exchanges adjust margin requirements and daily price limits dynamically — often raising them ahead of holidays or after volatility spikes, exactly as happened during the 2021 thermal coal turmoil. Always check the current margin schedule before sizing a position; your broker's default may be higher than the exchange minimum. Second, night sessions mean Chinese metals react to overnight US data before the European open — this creates both opportunity and risk if you hold through the Beijing evening. Third, iron ore on DCE is quoted in CNY per tonne of 62% Fe fines, so it doesn't tick one-to-one with Singapore swaps — basis risk is real if you hedge across venues.

The Playbook: Combining Receipts and Liquidity Into a Weekly Bias

Here's how I'd structure a weekly review, in order. It takes about twenty minutes.

Step 1: Set the macro ceiling

Check last week's OMO net position, any MLF operation, and where DR007 traded relative to the policy rate. Write down one sentence: "Liquidity is supportive / neutral / restrictive." No nuance needed. If liquidity is restrictive, you should be structurally skeptical of demand-driven longs in steel products, regardless of inventory data.

Step 2: Read the receipts against price

For copper and iron ore, map the week's receipt change against the week's price change and place it in one of the four quadrants described earlier. Rising receipts + falling price = trend continuation, look for shorts on bounces. Falling receipts + rising price = trend confirmation, look for pullback entries. Falling receipts + weak price = squeeze risk, avoid fresh shorts in nearby months and consider calendar spreads instead.

Step 3: Check the term structure

Is the nearby contract in backwardation or contango versus the second month? Backwardation plus falling receipts is the strongest squeeze combination in Chinese metals. Contango plus rising receipts is the strongest confirmation of a glut. The term structure is your tiebreaker when the receipt data is ambiguous.

Step 4: Size for the regime, not the trade

Chinese metals can move hard on policy headlines. During the 2021 coal squeeze, exchanges raised margins and widened price limits repeatedly, and positions that were properly sized on Monday became dangerously oversized by Wednesday. A sensible rule: never size a Chinese metals position assuming the current margin will hold. Assume it can rise by half, and make sure your account survives that.

The one-sentence summary: PBOC liquidity tells you whether the river can rise; warehouse receipts tell you whether the water is actually moving. Trade long only when both flow the same way.

What to Watch This Week

As you head into the session, your checklist looks like this:

• Daily PBOC OMO announcements and net injection/withdrawal totals
• Any MLF operation and whether the rate or volume surprised
• DR007's average print versus the seven-day reverse repo rate
• SHFE weekly warehouse receipts for copper (and aluminum, if you trade it)
• DCE iron ore receipts, daily, plus week-over-week change
• Rebar social inventory surveys for direction confirmation
• The RB and I term structure — nearby versus second-month spread

If receipts are drawing in copper while the PBOC is net injecting and DR007 is soft, you have the textbook setup for a demand-led long bias — with entries on pullbacks toward the night-session lows rather than chasing strength. If receipts are building while liquidity headlines are neutral-to-tight, respect the downtrend and let bounces come to you.

Test the Framework Before You Risk Real Money On It

Reading about warehouse receipts and PBOC operations is one thing; making disciplined decisions with them, under pressure, across a dozen sessions with real overnight gaps — that's a different skill entirely. And it's a skill you can only build by running a defined process over real market data, with real position-sizing consequences.

That's exactly what we built XS Select for. It's a futures evaluation platform focused on China's markets — you trade Chinese commodity futures against a real-data evaluation with clear risk rules, starting from $29, and you find out honestly whether your process holds up. No inflated promises, just the same data and the same decisions you'd face trading these markets for real. Run your receipt-and-liquidity framework through a full evaluation cycle, and you'll know within a few weeks whether it's a system or just a theory.

Check the receipts. Watch the PBOC. Then go prove your edge.