Why is the WiseTech (ASX:WTC) share price having such a lousy end to the week?

Unfortunately, the S&P/ASX 200 Index (ASX: XJO) hasn’t had the best of weeks. The ASX 200 has gone backwards by around 0.7% since last Friday’s close, and that includes the 0.11% gain the index has added so far today (at the time of writing).

One ASX 200 share…