Oprah takes financial hit.
The fresh batch of bad news from Weight Watchers lopped an additional $39.2 million from the fortune of its biggest individual shareholder. Oprah Winfrey, who owns more than 8 percent of Weight Watchers, saw the value of her stake drop to $122.7 million after the wellness company forecast that 2019 profit will be well short of Wall Street estimates. The value of her stock has plunged by $435.8 miillion since June 20, when the shares peaked at $103.09. She also owns options to purchase an additional 2.1 million shares. Weight Watchers tumbled 23 percent to $22.65 in extended trading at 5 p.m. in New York. Read more: Weight Watchers plunges as weak forecast chokes off turnaround Winfrey, 65, is worth $3.4 billion, according to the Bloomberg Billionaires Index. Most of her net worth is held in cash.