SpaceX has officially filed its S-1 registration with the SEC, confirming a Nasdaq listing under the ticker SPCX in what is poised to be one of the largest IPOs in history, with expectations around a $1.5-1.75 trillion market capitalization. The filing reveals a vertically integrated empire spanning reusable rocketry, the dominant Starlink satellite broadband network, and an aggressive push into AI compute infrastructure, including gigawatt-scale clusters and future orbital data centers. Financials show consolidated revenue of $4.69 billion in Q1 2026 and $18.67 billion for FY 2025, with Starlink as the primary profit engine offsetting heavy losses in space development and AI capex. The company maintains over 80% of global mass-to-orbit launches, a 9,600+ satellite constellation serving 10.3 million users, and notable AI partnerships, including Anthropic's $1.25 billion monthly payments for Colossus compute access through 2029. A dual-class share structure ensures Elon Musk retains majority voting control post-IPO, classifying SpaceX as a "controlled company." Retrospective adjustments incorporate the February 2026 xAI acquisition and related X Holdings integration, alongside a 5-for-1 stock split. Underwriters are led by Goldman Sachs, Morgan Stanley, BofA, and others. This rare transition of a major private space company to public markets—after years of relying on private capital and government contracts—sets new benchmarks for tech valuations, particularly at a reported 77x LTM revenue multiple. It could ripple across the sector by unlocking liquidity for employees and investors while inviting greater scrutiny on profitability, especially as Starship development and orbital AI ambitions remain capital-intensive and unproven. Connections often missed include how public status may intensify competition in satellite broadband and AI infrastructure, influence NASA and DoD contracting transparency, and synergize Musk's ecosystem (Tesla collaboration on Terafab compute hardware noted in the filing). Risks highlighted include Starship delays, regulatory probes into AI content, and questions over the commercial viability of space-based data centers. While Starlink drives current cash flow, the "giant green slabs" of AI investment underscore a bet that real-time data from X and orbital solar-powered compute will define the next frontier. This IPO doesn't just monetize reusable rockets—it publicly tests the thesis that multiplanetary ambitions, frontier AI, and broadband dominance can coexist under market pressures.