Space Exploration Technologies Corporation, operating as SpaceX, has closed in on Amazon as one of the world’s most valuable publicly traded companies, after its stock continued a post-IPO surge.

The American public spaceflight, telecommunications, and artificial intelligence company, SpaceX, having leapfrogged Amazon on the market-capitalisation table, is already closing in on Microsoft (MSFT) at 2.31 percent growth, which ranks fourth.

Over $1.16 billion worth of SpaceX shares exchanged hands in a single morning premarket session—several times the combined volume of heavyweights like Apple, Microsoft, and Nvidia, according to Marketscreener.

Shares in the rocket launching company (SPCX) have traded up by 19.60 percent in early Tuesday premarket trading and were changing hands at around $213 which is almost 11 percent higher than Monday’s close on Nasdaq. Amazon shares(AMZN) traded up by 3.13 percent.

Floating at $1.77 trillion on Friday, the shares rallied 19 percent, then added another 19 percent on Monday, buoyed by bullish projections from Elon Musk himself and the overall upbeat mood across markets in response to the proposed peace agreement in the Middle East.