Why Capricorn, CBA, Endeavour, and Polynovo shares are tumbling today

The S&P/ASX 200 Index (ASX: XJO) is having another tough session on Friday. In afternoon trade, the benchmark index is down 1.5% to 7,973.5 points.

Four ASX shares that are falling more than most today are listed below. Here’s why they are ending the week in the red:

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