SpaceX gained 11% in its Nasdaq debut on Friday, pushing its market valuation to nearly $1.96 trillion as investors rushed to buy shares in the world's largest-ever IPO and Elon Musk's businesses spanning space launches, satellite broadband and artificial intelligence.The stock opened at $150 per share, above its IPO price of $135.The listing also turned Musk into world's first ever trillionaire and sent the company’s market capitalization above $2 trillion.The offering was closely watched across Wall Street, with market participants viewing it as a key test for the IPO market. Some bankers had cautioned that a weak debut or a close below the issue price could dampen sentiment toward future public offerings.Also read: SpaceX leveraged fund providers hit by day-one launch setback, sources sayThe rocket maker raised more than double the proceeds of Saudi Aramco's $26 billion IPO in 2019, while debuting at a valuation of about $1.75 trillion, making it the first trillion-dollar IPO in US history and one of the world's most valuable listed companies.At a launch event in Starbase, Elon Musk promised he will take humanity to Mars. "SpaceX wants to be able to take you to the moon, take you to Mars, and ultimately beyond," he said.At the IPO price, SpaceX ranks among the seven largest listed companies in the United States by market cap. The valuation could rise further if underwriters exercise their option to sell additional shares over the coming weeks.The listing marks a major milestone for Musk's business empire, giving public market investors access to a company that spans commercial space launches, satellite broadband through Starlink and artificial intelligence through xAI.SpaceX said in its prospectus that its total addressable market is worth $28.5 trillion, which it described as the largest market opportunity in human history.Also Read: SpaceX IPO Stock Price Live UpdatesThe company dominates the global launch industry and says it has been responsible for more than 80% of the mass launched into orbit globally over the past three years.Starlink has also emerged as a major revenue driver, helping transform SpaceX from a pure space exploration company into a broader communications and technology business.Strong subscription for SpaceX IPOThe IPO attracted strong demand from institutional and retail investors alike. Analysts said the stock could receive an additional boost in the coming weeks from expected inclusion in the Nasdaq-100 index.Recent changes to Nasdaq's rules allow mega-cap IPOs to join the benchmark after just 15 trading days, potentially forcing passive funds and exchange-traded funds tracking the index to purchase SpaceX shares.Also Read: SpaceX to list today: Should Indian investors buy shares of Elon Musk's biggest bet after missing the IPO?While SpaceX may have to wait longer for inclusion in the S&P 500, its likely fast-track entry into the Nasdaq-100 could create a significant new source of demand for the stock.Should Indian investors invest?For Indian investors, however, participation in the IPO itself was not possible. Unlike Indian public issues, US IPOs do not offer a direct allotment mechanism for retail investors in India. The practical route for most investors now is to buy shares after listing through international investing platforms or via GIFT City's NSE IX platform.Analysts remain divided on whether investors should rush into the stock after listing.The company reported revenue of $18.67 billion in 2025 but remained loss-making, posting a net loss of $4.94 billion. Despite that, many investors view SpaceX as one of the few publicly traded companies offering exposure to multiple long-term growth themes including space infrastructure, satellite communications and artificial intelligence."SpaceX is a rare asset with world-class technology and multiple long-duration growth drivers," said Ishan Tanna, Senior Associate at Ashika Capital.However, he cautioned that investors are paying a steep premium for future growth. "At a $1.75 trillion valuation, investors are betting more on future execution than current fundamentals. It may make sense as a small diversification allocation, but chasing the stock after a euphoric listing could expose investors to significant valuation risk," Tanna said.The stock's performance over the coming sessions is expected to provide one of the biggest tests yet of investor appetite for large-scale AI and technology-driven growth stories in global equity markets.