Meta Platform Inc.'s shares were down roughly 73 percent over the past year

Investors have been spooked in recent months by a string of challenges to Meta

Facebook owner Meta is ranked WORST performer on S&P500 as its shares continue to slump amid concern over its costly virtual world

Meta recently posted its second-quarter revenue decline in history

Meta says the recent slump has been down to external factors

Investors also appear concerned about Meta's massive spending on the Metaverse

Meta Platform Inc.'s shares were down roughly 73 percent over the past year.