Why your girls should learn poker, says a billionaire female fifinancier.

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Jenny Just, co-founder of Peak6 Investments, built a fortune in options trading, a male-dominated business. Unchanged.

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She says she was one of few women on the Chicago Board options Exchange floor in the early 1990s.

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“It’s not wildly different today,” she said at the recent CNBC Disruptor 50 Summit.

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She argues there are still too few women in finance and fintech, but they can be equal at allocating money.

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Just doesn't look to the CBOE floor to prepare them for a professional environment stacked against them.

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It's called poker. And it was by chance that she discovered the card game as a form of education for girls.

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A few important lessons that poker can impart: 1. Practice taking risk. 2. Having a top-down strategy approach. 3. Having a seat at the table and becoming confident in it.

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