Why BrainChip, Crown, Qantas, & Quickstep shares are tumbling lower

In afternoon trade the S&P/ASX 200 Index (ASX: XJO) has followed the lead of US markets and is pushing higher. At the time of writing, the benchmark index is up 0.2% to 6,764.8 points.

Four ASX shares that have failed to follow the market higher today are listed below. Here’s why they are tumbling lower:

Brainchip Holdings Ltd (ASX: BRN)

The BrainChip share price has fallen 4% to 72 cents. This is despite there being no news out of the artificial intelligence services company today. However, it is worth noting that its shares are up 33% in the space of a month, even after today’s decline. As a result, it looks as though profit taking could be weighing on the BrainChip share price today.

The Crown share price is down almost…