Why Costa, Monash IVF, Newcrest, & Xero shares are dropping lower

The S&P/ASX 200 Index (ASX: XJO) has failed to follow the lead of US markets and is sinking lower on Monday. In late morning trade the benchmark index is down 0.5% to 6,725.6 points.

Four shares that are falling more than most today are listed below. Here’s why they are dropping lower:

Costa Group Holdings Ltd (ASX: CGC)

The Costa share price has dropped 4% to $4.11. This decline appears to have been driven by a broker note out of Citi this morning. According to the note, the broker has downgraded the horticulture company’s shares to a neutral rating with a $4.30 price target. Citi made the move largely on valuation grounds after a strong gain over the last few months.

Monash IVF Group Ltd (ASX: MVF)

The Monash IVF share price…