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Sam's News — markets — Week 2026-W30

TL;DR

  • Google's SEC filing revealed a $94.1B stake (~6%) in SpaceX, generating ~$99B in unrealized Q2 gains for Alphabet after SpaceX's June IPO.
  • Big Tech earnings collided with investor skepticism over AI capex efficiency, compounding a volatile week for equities.
  • Wall Street logged a second straight week of declines, with sell signals and correction warnings mounting.
  • Berkshire Hathaway's cash pile hit $397B, enough to buy nearly any S&P 500 company outright.
  • Industrial stocks reached valuation parity with tech in the S&P 500's AI-driven rally.
  • Trump Trade stocks underperformed as sentiment shifted; South Korea's KOSPI showed meme-stock-like volatility.

Biggest stories

Google's $94.1B SpaceX stake surfaces amid AI-spending scrutiny

Alphabet disclosed a $94.1B stake in SpaceX (~6% ownership) in its July 23 Q2 SEC filing, tracing back to a 2015 $1B joint investment with Fidelity. SpaceX IPO'd June 12, 2026 at $135/share, popping 19% to a $2.1T valuation; $80B of Google's stake is under short-term lockup, $14.1B locked until Q3 2027. The disclosure added ~$99B in unrealized Q2 gains for Alphabet. It landed alongside broader Big Tech earnings that met investor doubts over whether massive AI capital expenditure is paying off — a tension that ran through the week's market coverage. Sources: 2026-07-26

Wall Street volatility deepens, second week of losses

Markets entered a rocky stretch starting July 25, with sell signals triggered and analysts flagging correction risk. By July 26 this extended into a second consecutive weekly decline, driven by AI-spending skepticism, Trump Trade stocks losing steam, and unusual volatility in South Korea's KOSPI resembling meme-stock trading. Sources: 2026-07-25, 2026-07-26

Berkshire Hathaway's record $397B cash pile

Warren Buffett's Berkshire Hathaway built up a $397B cash reserve, described as large enough to acquire almost any S&P 500 company, underscoring caution about current valuations. Sources: 2026-07-26

  • AI-spending skepticism as a market drag: Big Tech earnings, industrial-stock parity with tech, and general sell-off signals all trace back to investor doubt over AI capex payoff, a thread running across both days covered.
  • Big cash piles and pullbacks: Berkshire's $397B reserve and DeepSeek's investor-funding pause both point to major players sitting on capital rather than deploying it amid uncertainty.
  • IPO ripple effects: SpaceX's June IPO reshaped Alphabet's balance sheet overnight, while Shein's disclosures ahead of its Hong Kong listing show more large IPOs feeding into market narratives.
  • Political-trade unwind: Trump Trade stocks weakening alongside broader declines suggests a rotation away from the post-election trade that had driven earlier gains.