The Nasdaq made a dash above the breakeven line. The tech-heavy index has erased its earlier losses and was up 0.3% in midday trading. The S&P 500 was flat, while Dow was only down 0.1%. Bloomberg, ...

Polymarket’s social-media account has repeatedly identified signs of insider trading on its prediction-market platform. It ...

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With U.S. stock markets set to open in two hours, AeroVironment Inc. (AVAV) was up 10.2% in pre-market trading, and SM Energy Co. (SM) was up 9.5%.

Investor trading activity jumped last year, with daily average trades up 31% year over year, according to Fidelity.