Natera is today's selection for IBD 50 Stocks To Watch as the DNA testing company has grown 85% year to date. Natera stock is rebounding from its 50-day moving average as it tries to get past a buy point of 117.23, according to IBD MarketSurge chart analysis tools. Natera uses software and artificial intelligence in testing DNA that can be found outside cells as they circulate in the blood.