Shares of Boeing Co. reversed higher in early Friday trading, and some may wonder why they’re not actually tumbling considering the aerospace giant’s warning of a massive fourth-quarter net loss. That’s because with all of Boeing’s issues,

Boeing shares are falling in premarket trading after the plane maker projected a far wider-than-expected fourth-quarter loss following a nearly two-month strike that crippled production.

Boeing warned on Thursday that it expected a fourth-quarter loss of about $4 billion to close a year marred by a production quality crisis, stricter regulatory scrutiny, supply chain delays and a crippling strike by U.