Elon Musk’s estimated net worth fell below the $1 trillion threshold on Tuesday, October 13, 2026, just four days after the tech executive regained the twelve-figure milestone. The sharp decline was triggered by a drop of more than 3% in SpaceX’s share price following the Tuesday market open, alongside a minor dip in Tesla stock. By Wednesday, October 14, continued downward pressure on both equities pushed his estimated fortune down further to $952.8 billion, though he remains the richest person in the world.

Because Musk serves as CEO of both companies and holds substantial equity in each, daily fluctuations in their market valuations directly translate into tens of billions of dollars in personal paper losses or gains. For retail and institutional investors, the rapid swings highlight how heavily Musk’s personal balance sheet relies on the public market performance of his aerospace and automotive ventures following SpaceX’s transition to public trading.

How the Multi-Billion-Dollar Slide Unfolded

The exact size of Musk’s fortune varied across different intraday tracking snapshots during the week’s volatile trading sessions. According to a Forbes report syndicated by Yahoo Finance, Musk’s net worth dropped by roughly $28.6 billion—or about 2.8%—to sit at $977.2 billion as of 12:20 p.m. EDT on Tuesday, October 13. That slide aligned with SpaceX shares falling over 3% after the opening bell and Tesla shares declining by 0.5%. Meanwhile, BigGo Finance reported an earlier morning snapshot on October 13 that estimated his net worth at $982.9 billion after a single-day contraction of approximately $26.3 billion.

The selling pressure did not abate midweek. According to Forbes, Musk’s estimated wealth dropped another $17.6 billion to reach $952.8 billion around 11:25 a.m. EDT on Wednesday, October 14, following an inflation report that rattled broader equity markets. During that Wednesday morning session, SpaceX shares fell roughly 1.5% while Tesla stock slid 1.9%.

This mid-October downturn reversed a brief rally from the prior week. On Thursday, October 8, an account by IANS noted that Musk’s wealth had slipped below the trillion-dollar mark to $991.6 billion following a 3.5% decline in SpaceX shares. However, Forbes documented that he reclaimed trillionaire status around 10 a.m. on Friday, October 9, reaching an estimated $1.012 trillion as SpaceX shares rose 1.5% and Tesla stock rallied.

Broader Tech Selloffs and Aerospace Sector Pressures

The Tuesday pullback in SpaceX and Tesla shares coincided with a wider retreat across global semiconductor and artificial intelligence equities. As noted by Yahoo Finance, the Tuesday selloff began in Asian markets, impacting South Korean memory makers SK Hynix and Samsung as well as Taiwanese foundry TSMC. When U.S. markets opened on the East Coast, major American chipmakers including Nvidia, Broadcom, and Intel also traded lower. Benchmark U.S. indices reflected the cautious sentiment, with the Dow Jones Industrial Average down 0.3%, and both the S&P 500 and Nasdaq composite slipping 0.1% at midday Tuesday. The tech slump also reduced the net worth of SoftBank CEO Masayoshi Son by approximately $5.5 billion.

Within the commercial space sector, SpaceX actually weathered the week’s turbulence better than several publicly traded peers. According to TradingView, SpaceX (trading under the ticker SPCX) dropped 9% over the course of the week and sits down 8% year-to-date. By comparison, competing space equities saw steeper weekly losses: AST SpaceMobile fell 13%, while Rocket Lab and Firefly Aerospace each tumbled 19%, with Rocket Lab pressured by the delay of its Neutron rocket debut to 2027. Redwire recorded the smallest decline among the group, losing 6.99%.

Starlink Expansion and Corporate Developments

SpaceX’s stock movements are occurring against a backdrop of significant telecommunications expansion and geopolitical scrutiny. The company recently secured Federal Communications Commission authorization to deploy a 15,000-satellite direct-to-device constellation for its Starlink Mobile initiative. To support this network, SpaceX agreed to acquire a nationwide portfolio of low-band 800 MHz spectrum licenses from Grain Management in a transaction valued at around $8 billion, subject to regulatory approval.

At the same time, SpaceX’s satellite operations faced geopolitical headwinds after Ukraine reported that restrictions on the satellite service disrupted military drone operations. Musk stated that the U.S. government controlled usage limits for the military-focused Starshield system, and British and U.S. defense officials subsequently welcomed the restoration of Starlink service by Thursday. On Wall Street, analysts are also monitoring potential structural shifts between Musk’s enterprises, with Barclays suggesting that a Tesla-SpaceX merger announcement could materialize ahead of Tesla’s December 6 annual shareholder meeting.

How Musk’s Equity Stakes Drive Valuation Swings

The extreme sensitivity of Musk’s personal fortune to daily stock tickers stems from the concentration of his holdings. According to August regulatory filings cited by Yahoo Finance, Musk owns an estimated 48.4% stake in SpaceX alongside roughly 11% of Tesla. He first crossed the $1 trillion threshold after SpaceX went public via an initial public offering in June, though his net worth quickly retreated when the newly listed stock dropped in the days following the debut.

While earlier reports such as BigGo Finance noted that SpaceX’s valuation historically relied on secondary market trading while privately held, the June IPO shifted the company into open public trading. Consequently, every percentage point move in SpaceX or Tesla immediately recalibrates real-time billionaire trackers.

What triggered SpaceX’s share declines during the second week of October?

Different catalysts impacted the stock across separate trading sessions. An earlier 3.5% drop on October 8 was linked by IANS to investor concerns over reports that SpaceX planned to raise $40 billion to purchase Nvidia AI chips. In contrast, the October 13 decline of more than 3% coincided with a broader global selloff in AI and semiconductor stocks, followed on October 14 by market-wide losses after a hotter-than-expected inflation report.

Why do reports list different figures for Musk’s net worth on October 13 and 14?

Wealth tracking publications capture intraday snapshots at different timestamps as stock prices move. On October 13, an early morning estimate cited $982.9 billion, while a 12:20 p.m. EDT snapshot recorded $977.2 billion. Continued market declines on the morning of October 14 lowered the estimate further to $952.8 billion by 11:25 a.m. EDT.

How are Musk’s ownership stakes in SpaceX and Tesla calculated?

Real-time wealth estimates rely on publicly reported equity holdings. Financial reports citing August regulatory filings indicate Musk holds an estimated 48.4% of SpaceX and approximately 11% of Tesla, making his net worth directly proportional to the combined market capitalization of both companies.

Sources

Read More