Prices, in perspective.

Every index starts at 100 on 6 July 2026. A value of 108 means an 8% increase in observed like-for-like prices. Period controls change the dates shown, not the original index base.

Sector charts use a fixed membership snapshot. A broad market can contain related products that are not direct substitutes. Concentrated movement means a small part of the group explains much of the change; it does not identify those products.

These are observed published prices, not transaction prices or estimates of demand. Thin histories are labelled. A rising index alone does not establish a growing business or market.