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The Index is an index on the six designated LME primary metals contracts denominated in US dollars.
Index weighting
Weightings of the six metals are derived from global production volume and trade liquidity averaged over the preceding five-year period.
| Constituent metal |
Primary
Aluminium |
Copper |
Lead |
Nickel |
Tin |
Zinc |
| Approx no of lots |
25 |
20 |
5 |
5 |
3 |
8 |
| Tonnage |
625 |
500 |
125 |
30 |
200 |
200 |
| Volume weighting |
41.8 |
33.4 |
8.4 |
2.0 |
1.0 |
13.4 |
Index value
The index value is calculated as the sum of the prices for the three qualifying months multiplies by the corresponding weights, multiplied by a constant.
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