Hitting a 52-week and all-time high of $164 a share (post-split basis), Nvidia (NVDA)  became the first company in history to reach a$4 trillion market cap on Wednesday, beating Microsoft (MSFT)  and Apple (AAPL)  to the punch.Lifting the Nasdaq to a new all-time high as well, Nvidia stock is up +20% year to date and has skyrocketed more than +1,400% in the last five years.This certainly makes it a worthy topic of whether investors should buy, hold, or take profits in NVDA after hitting such a gigantic mar ...