Why Collins Foods, Monash IVF, Premier Investments, and Step One shares are tumbling today

In afternoon trade on Friday, the S&P/ASX 200 Index (ASX: XJO) is on course to record a small decline. At the time of writing, the benchmark index is down slightly to 8,615.2 points.

Four ASX shares that are falling more than most today are listed below. Here’s why…