While stock indexes continue to bump up against all time highs, they have yet to really push through their peaks and run substantially higher. The S&P 500 index is up 15% year-to-date while the technology heavy Nasdaq index has risen 10% since January. Yet there are some stocks that remain in hyper-growth mode and have risen more than 50% so far in 2021. In this article, we look at four hyper-growth stocks for investors to buy.