Big Short's Michael Burry Says the US Market is a Coiled Spring Primed for a Massive Crash

The investor who famously predicted the 2008 subprime mortgage crisis has issued a chilling new warning, claiming the US stock market is now a 'fragile' coiled spring nearing a violent breaking point.

Michael Burry, whose contrarian bets were immortalised in The Big Short, detailed a grim thesis on his Substack on 13 March 2026, citing a dangerous convergence of passive investing bubbles, demographic shifts, and a sudden retreat in corporate share buybacks.

Burry warned that as price discovery is 'destroyed' by index funds, the eventual market correction will likely be more severe and longer-lasting than any previous downturn in modern history.

Passive Investing Destroying Natural Price Discovery

Firstly, Burry believes that every dollar moving from active to passive investments is another dollar removed from price discovery, which is the main social purpose of markets.

The exponential rise of passive investing via index funds since 2000 now controls more than 60% of equity fund assets. 'Index funds buy the whole index, regardless of relative or absolute value variety within the index. This is not traditional smart money, or intelligently driven money. It just might be idiot savant money. In any event, zero price discovery happens at the individual stock level,' he wrote.

Burry explained that market-based price discovery enables capital raising, 'which traditionally went to better businesses with better securities prices, and helped sort wheat from chaff in business and industry.' Apart from destroying price discovery, the passive investing trend is also driving valuation to historic extremes.

Aging Demographic

The passive investing boom was mostly led by Baby Boomers moving wealth into 401(k) accounts. As this generation reaches the Required Minimum Distribution age, Burry believes the dynamic is reversing and will become the first headwind to the passive investing trend.

'At $250 billion a year now and peaking over $1 trillion in the early-mid 2030s, redemptions will increasingly offset 401(k) contributions until 2028, when the redemptions first exceed contributions,' Burry warned. 'In 2028, for the first time in its over 3-decade existence, the defined contribution juggernaut driving much of the growth of passive investing turns negative.'

As forced 401(k) withdrawals speed up in the coming years, the market is likely to face price-agnostic selling pressure.

Consequences Of Declining Corporate Buybacks

Burry also highlighted a zero per cent growth in Mag 7 buyback for Q2 2025. For Q4, collective buybacks by Amazon, Alphabet, Microsoft, Meta, and Oracle fell 74% from a year earlier to $12.6 billion.

Tech giants are suddenly abandoning share buybacks to fund AI infrastructure development. To achieve this, companies are borrowing billions of dollars rather than repurchasing shares. Burry highlighted that Oracle borrowed $25 billion, compared with Meta Platforms' $30 billion. 'Buyback support for the market is set to fall hard,' he stated.

Overall, Burry believes stock market crashes will become more severe, more correlated, and longer in duration. 'My point is that the next one is likely to be even more violent than Liberation Day. And one day, the gloom might stick, backed by disappointed expectations and ruined narratives, yet still a long way from anyone examining rate-sensitive discounted cash flows,' he concluded.

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