One share of Amazon stock costs more than $1,700, locking out less-wealthy investors. So to continue its quest to democratize stock trading, Robinhood is launching fractional share trading this week. This lets you buy 0.000001 shares, rounded to the nearest penny, or just $1 of any stock, with zero fee. The ability to buy by … Continue reading Robinhood lets you invest as little as 1 cent in any stock