Why Brainchip, Chalice, Life360, and PointsBet shares are surging higher

In afternoon trade, the S&P/ASX 200 Index (ASX: XJO) has fought back from an earlier decline and is edging higher. At the time of writing, the benchmark index is up 0.1% to 7,460.1 points.

Four ASX shares that are climbing more than most today are listed below….