What are zero-day options? Here's how they're taking over a key corner of the stock market and why they could pose a big risk.

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Bull and bear figurines with stock market overlay
2023's bear market will test the many digital health startups strapped for cash.

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One trader is so bullish Meta's stock is going to keep skyrocketing, they bet $40 million on thousands of trades

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Mark Zuckerberg 2020
One trader is so bullish Meta's stock is going to keep skyrocketing, they bet $40 million on thousands of trades.

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A boom in one corner of the options market could bring 'volmageddon' and jolt the stock market in a big way

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NYSE trader

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