Should you get in on this stock now?If you're an investor focused on growth, you may have spent a fair share of your time at least watching Nvidia (NVDA 0.69%) stock in recent times -- even if you haven't jumped in to invest in this high-flyer. Nvidia dominates the artificial intelligence (AI) chip market, and that's helped the company deliver triple-digit gains in revenue and profit. The stock has followed, climbing 126% so far this year.But Nvidia isn't the only player generating big returns for investors ...