I talked my coworker into investing back around Feb / March this year and he put it in a meager amount into a robinhood account just to try it out. I threw him some stock picks I was personally interested in, NVDA being one of them as a play on driverless cars, neural networking / deep machine learning, etc. It was around $31 back then.
He bought NVDA because he liked the balance sheet / fundamentals and story.
He now has a 100% gain on that stock while I weep in the corner because I was too big of a pussy to buy it. Even when it was at $52 I was thinking, "damn, this is priced to perfection; it either will correct soon from some earnings miss or just pull back after this insane run-up."
Nope. Now at $62. He asked me to tell him when I finally buy NVDA so he can short it then
But anyway, back to my coworker -- he's sitting at a 50% overall portfolio gain from just ~5 months of investing. I guess the timing was ripe given that we were at lows around the time, but still. He sees the light and plans to pour more money into the market.