Why are ASX mining shares so far out in front?

The S&P/ASX 200 Index (ASX: XJO) materials sector, which includes all mining shares, is in the lead today amid a new market high.

Materials stocks are up 1% today while the benchmark ASX 200 has risen 0.4%.

ASX 200 shares rose to an all-time peak of 9,296.7 points in…