YEREVAN, OCTOBER 20, ARMENPRESS. American media proprietor, talk show host Oprah Winfrey made $45 million Monday ... off of one stock.

“Armenpress” reports referring to TMZ that the stock soared from $6.79 Monday AM to $13.92 at the close of trading, grossing her a cool $45 mil.

The announcement Oprah was investing in the company made investors go crazy ... the volume of shares traded was 70 times more than normal.

As Yahoo news reports, Weight Watchers said Monday that it signed a five-year deal with the former talk show host. Winfrey, a co-owner of OWN: The Oprah Winfrey Network, is paying about $43.2 million for a 10 percent stake in the weight loss company.

The deal is already paying off: Weight Watchers shares more than doubled after the partnership was announced, earning Winfrey about $45 million on paper.

Photo by AP