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Tech stocks rose on Monday after the US and Iran agreed to a ceasefire, buoying overall markets on optimism that the four-month-long war that has weighed on the global economy could begin to wind down.

Following its blockbuster public debut on Friday, investors will be closely watching how SpaceX (SPCX) shares open and trade throughout this holiday-shortened week for further bullish signs. SpaceX’s IPO was the largest in history, making the rocketry and satellite company more valuable than Tesla (TSLA) and making Elon Musk the world’s first trillionaire.

It also sets the stage for two other high-profile IPOs that could come as early as this year, from the dominant AI startups OpenAI (OPAI.PVT) and Anthropic (ANTH.PVT). Both have confidentially filed paperwork to go public, setting up a showdown between the rivals.

On Friday, SpaceX (SPCX) stock closed at $160.95 per share, rising more than 19% from its IPO price of $135 and valuing the company at $2.1 trillion, according to Yahoo Finance data.

That makes Musk’s rocket, satellite, and AI company his most valuable, even more than Tesla (TSLA), which also rose Friday and has a market capitalization of $1.52 trillion.

SpaceX also became the world’s seventh-largest public company by market cap on Friday and the sixth-largest US public company. Only Nvidia (NVDA), Alphabet (GOOG, GOOGL), Apple (AAPL), Microsoft (MSFT), Amazon (AMZN), and Taiwan Semiconductor (TSM) are larger.

Notably, the distinction between Tesla and SpaceX may eventually become a thing of the past. A merger between the two companies is reportedly being openly discussed.

"In our view, there is a growing chance that Tesla will eventually be merged in some form into SpaceX/xAI over time,” Wedbush analyst Dan Ives wrote in a note to clients earlier this year. “The view is this growing AI ecosystem will focus on Space and Earth together ... and Musk will look to combine forces/technologies over time."

SpaceX's (SPCX) record IPO is a reassuring sign for Wall Street that the AI bull market may have plenty of runway to go.

Earlier in the week, a pullback in technology stocks sparked concerns about the market's capacity to absorb a wave of new share issuance. Those worries intensified amid a surge of AI-related fundraising, including capital raises by Alphabet (GOOG, GOOGL) and anticipated IPOs from (OPAI.PVT) and Anthropic (ANTH.PVT).

"When you talk about absorbing it, this market has been able to absorb virtually anything," Lossdog founder and CEO Tom Sosnoff told Yahoo Finance the day SpaceX went public. "On a scale from 1 to 10, I would say it's a 10."

SpaceX stock soared nearly 20% on Friday, with retail investors playing a key role in the IPO, driven in part by enthusiasm for founder Elon Musk's vision.

"The big X factor is Elon's army of retailer support," Fortuna Investments CEO Justus Parmar told Yahoo Finance ahead of the first trade on Friday morning.

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