Affirm Holdings Inc. almost doubled in its public market debut, the latest multibillion-dollar technology company to start trading significantly higher than its initial public offering price. “A lot of people ask me if the stock market is a game of luck, and he really proves [it isn’t],” Dylan said. “To be able to do that, it really shows that knowledge is really important. It’s not a game of gambling. It’s not a game of luck … He knows his material well.” Cash, a sixth-grader at Dwyer Middle School in Huntington Beach, was honored at an awards ceremony Wednesday, as was secon...