Key Change: Overnight Spread Heightens Spot Market Tension
The short end of the London Metal Exchange (LME) copper market suddenly tightened: the much-watched overnight spread (Tom/next) surged to about $100/ton, reaching extreme levels not seen since the 2021 supply squeeze, highlighting the tension on the spot side.
This structure is a typical "backwardation" pattern, where the near-month price is higher than the far-month price, often indicating tighter short-term spot demand (or deliverable resources).
Why It Matters: Expiry Window and Inventory Constraints Amplify Impact
The dramatic spread fluctuations occurred during the window of key contract expiration, where the overnight spread serves as one of the last channels for participants to adjust positions nearing delivery.
LME's disclosed position information shows significant concentration in certain directions: three independent entities hold at least 30% of the open long positions in the January contract; if held to expiration, the theoretically extractable metal scale exceeds 130,000 tons, a figure higher than the exchange's warehouse network's immediately transferable inventory, thereby amplifying the supply-demand mismatch.
Market Implications: Rising Cost of Rolling Short Positions Raises Squeeze Risk
In this structure, shorts choosing not to go for physical delivery but to roll over instead might incur higher costs due to the "near-month premium," further raising the pressure for passive covering.
It's important to note that spot premiums nearing expiration are not uncommon, but such steep premium levels more easily raise concerns about a "squeeze reoccurrence," especially in an environment with tight inventory and concentrated positions.
What to Watch Next: Sustainability of Spread Reduction
The short-term signals most worth tracking are of three types:
- Whether the Tom-next retreats from extreme levels and whether the retreat is accompanied by an improvement in inventory;
- Whether position concentration decreases, and whether active position reduction occurs rather than passive squeeze-out;
- Whether spot premiums spread to longer tenures (a spread often implies a more "structural" tightness).
