Investors love to boast about their great stock picks, but beware of those who use fancy math to calculate their gains<blockquote>投资者喜欢吹嘘他们出色的股票选择，但要小心那些使用花哨的数学来计算收益的人</blockquote>
Even pros rarely beat the stock market
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Beating the market is so difficult that you'd be
Zooming In On Zoom's Solid But Not Good Enough Results<blockquote>放大Zoom可靠但不够好的结果</blockquote>
Despite logging its first billion-dollar quarter, the stock of Zoom Video Communications (NASDAQ: ZM) fell almost 11% on Monday after the company posted a higher-than-expected earnings forecast for the full year. The revenue guidance exactly met expectations, but sales-growth rates fall to new lows.