Super Micro Computer was slipping early Tuesday after an impressive run higher. The server maker has been rising sharply since it said it had appointed a new auditor and had a plan to submit earnings and prevent its delisting.

Shares of Super Micro Computer (NASDAQ: SMCI), the once high-flying artificial intelligence (AI) server stock, were back on the move again today. After plunging over a period of several weeks over concerns that began with a short-seller attack and a delay in its 10-K filing,

When I think about stocks with millionaire-maker potential, I typically envision fast-growing companies with small valuations -- two characteristics Super Micro Computer (NASDAQ: SMCI) has in spades.

That said, the stock is now trading with a market cap of about $15 billion. Even if the stated guidance is reduced by one-third and extrapolated for a full 12-month period, annual revenue would total more than $15 billion. That would result in a price-to-sales ratio of about 1, and that could be an interesting place to start an investment.

Microsoft turned into a growth stock again after Satya Nadella, who became its CEO in 2014, drove the company to transform its desktop-based software into cloud-based services and mobile apps. It also turned Azure into the world's second-largest cloud infrastructure platform and expanded its hardware and gaming businesses.