The data center industry is standing in front of major expansion due to the unbending popularity of artificial intelligence (AI). Despite that, top sector name Equinix (EQIX -9.23%) has been having a rough few days on the stock exchange of late, especially following its analyst day event on Wednesday.All told, according to data compiled by S&P Global Market Intelligence, week-to-date as of Thursday night, the company's share price was down by almost 16%.Some growth to be gobbled by capexNo investor likes to ...