Facebook struggles to stop its stock from falling as users leave and sales decline.

Meta is trading at its smallest since early 2019, 

and the stock is one of the worst players this time in the S&P 500. 

Whether it's the advertising blow from Apple's iOS upgrades or the growing threat posed by TikTok, 

Laura Martin, a Needham analyst, said, .....

"I'm not convinced there's a fundamental business that works anymore at Facebook."

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