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S&P 500 concentration risk is surging—the top 10 now make up 41%. See a quant-optimized 15-stock barbell from Strong Buy picks for better diversification.

Abstract: In the context of the big data era, the extensive penetration of the Internet and the rapid development of database technology have led to an explosive growth in the amount of data generated ...

One of the cheapest ways for an investor to diversify a portfolio is with an exchange-traded fund. The two largest ETFs in terms of assets are SPDR S&P 500 ETF Trust SPY and Vanguard S&P 500 ETF VOO, ...

Add Yahoo as a preferred source to see more of our stories on Google. Biologist Ian Easterling, wearing a Santa Claus hat, appeared to be enjoying a stroll through the swampy terrain of Southwest ...

Ian Easterling, a biologist with the Conservancy of Southwest Florida, captured a 153-pound female Burmese python, one of the largest caught in Florida in 2025. Conservancy of Southwest ...

IVV and SPY both track the S&P 500 and hold nearly identical portfolios, but IVV charges a lower expense ratio SPY offers exceptional liquidity, making it popular for very large or frequent trades ...

Zachary Young, the U.S. Navy veteran who defeated CNN in a high-profile defamation case, has teamed up with "American Sniper" co-author Scott McEwen for an upcoming memoir "American Spy." Young, who ...

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An error has occurred. Please try again. With a The Portland Press Herald subscription, you can gift 5 articles each month. It looks like you do not have any active ...