Palantir has its second-quarter earnings call scheduled on Aug. 4, after the market's closing bell. If it can maintain its growth momentum, its stock will continue to soar. However, a slowdown in growth could be devastating and let the air out of the Palantir balloon.

If any investor has stood the test of time, it’s Warren Buffett, and with good reason. For years, the “Oracle of Omaha” has had a rock star-like presence in the investing world, and his annual Berkshire Hathaway shareholders meeting draws thousands of loyal fans who are investors.