It's tempting to actively trade small tech companies in their early days. The companies' stock prices typically experience wild swings as investors grapple with proper valuations and long-term opportunities.However, it's often better to designate a small portion of your portfolio to a speculative name and hold the stock for the long haul. For instance, if you bought $5,000 worth of an upstart online bookseller at its initial public offering, you would have over $10 million today.I'm talking about Amazon, of ...