FedEx stock was down after the company reported worse-than-expected fiscal first-quarter earnings.The economy just isn’t helping, and there is a troubling shift happening which shows why the Fed just cut benchmark interest rates.

FedEx has lowered its full-year outlook, expecting low-single-digit-percent revenue growth year over year, down from its previous projection of a low-to-mid-single-digit increase. It expects earnings per diluted share to range from $17.90 to $18.90, compared to the earlier forecast of $18.25 to $20.25.

FedEx stock is plunging Friday after the logistics giant came up short of earnings expectations and revised its full-year outlook. Here's what you need to know.