SpaceX (SPCX) stock is back trading near $140, up nearly 5% over the past week, as investors find new reasons to bet on Tesla (TSLA) CEO Elon Musk’s newest public-market heavyweight. 

Also, the latest 13F filings are only adding to the fuel.

AI behemoth Nvidia (NVDA) disclosed 122.76 million SpaceX shares worth nearly $21 billion on June 30, according to 13f.info.

At the same time, Alphabet (GOOG) reported 551.2 million shares valued at nearly $94.2 billion, according to 13f.info. That’s some insane institutional firepower behind a stock that hasn’t left the spotlight since its earth-shattering June debut.

As we look ahead, nearly 320 million restricted shares will become eligible for…