Why is the Zip (ASX:Z1P) share price down 11% so far this month?

The Zip Co Ltd (ASX: Z1P) share price has taken a turn for worse, down 11% in May to a 5-month low of $6.91.

Zip shares have gone from a peak 150% year-to-date return after surging to a record high of $14.00 on 16 February, to a return of just 23.5% today. 

What’s driving the Zip share…