Michael Burry Warns a 1987-Style Market Crash Could Follow the S&P 500 Record High

Michael Burry, the investor who predicted the 2008 US housing collapse and whose trade was dramatised in "The Big Short," published a Substack warning on 3–4 August 2026 that the S&P 500's fresh record high could be the precursor to a crash resembling Black Monday 1987 — the day the index fell 20.4 percent in a single session. Burry is holding his short positions, maintaining that markets are near "a major top," and has identified a specific mechanism — the mechanical behaviour of volatility-control investment funds — that he argues most market participants are not watching closely enough.

The 1987 Parallel and Why Burry Is Raising It Now

The S&P 500 surged 1.9 percent on 4 August 2026 to its first record close in 42 sessions, lifted by stronger-than-expected corporate earnings and falling oil prices. That close extended a four-session run that pushed the index up approximately 5 percent — a pace that Burry noted via Yahoo Finance / Cassandra Unchained has occurred only three other times in modern market history. One of those prior occasions was 21 March 2000 — effectively the peak of the dot-com bubble.

His Substack post stated directly: "I continue to believe it is possible we are near a major top, and possible a 1987-type fall, but the S&P 500 making new highs will likely bring new money into the market." The 1987 reference is to Black Monday — 19 October 1987 — when the Dow Jones Industrial Average fell 22.6 percent in a single session, triggered in part by the mechanical behaviour of a financial product called portfolio insurance: automated selling rules designed to protect against losses that instead amplified them catastrophically once prices began moving.

The Vol-Control Mechanism Burry Is Watching

Business Insider reported that Burry's specific concern is not simply elevated valuations but a structural feature of modern markets: volatility-control funds, or vol-control funds, which automatically increase equity exposure when the VIX is low and reduce it when volatility rises. With the VIX near 16 — a level that signals complacency — these funds are mechanically adding equity exposure. This draws in additional momentum funds that read low volatility as a signal to extend positions.

The danger Burry identifies is the reversal: if something triggers a VIX spike, vol-control funds must sell simultaneously to rebalance. That simultaneous automated selling creates exactly the feedback loop that amplified the 1987 crash — a cascade that does not require fundamental bad news to accelerate once it starts. CNBC confirmed Burry is maintaining his short positions rather than covering into the rally — an unusual choice given the mark-to-market losses he is absorbing on some positions.

Burry's Current Positions

24/7 Wall Street detailed his known positions: an underwater put option on NVIDIA at a strike of $110 covering one million shares — expensive to hold given NVIDIA's extended rally — alongside profitable short positions in Tesla and Palantir. He also holds bearish exposure to the SOXX semiconductor index, which has gained approximately 80 percent year-to-date. His thesis is that the AI-driven rally in semiconductor stocks has outrun the earnings growth that can plausibly justify it — that the market has priced in a future that requires every ambitious AI infrastructure projection to materialise exactly on schedule. Related analysis: NVIDIA Recruits Six Wall Street Giants to Mobilise $500 Billion for AI Infrastructure and AMD Acquires Taalas to Harden AI Model Weights Directly Into Custom Inference Silicon.

Why the Warning Is Analytically Credible — and Why It Might Still Be Wrong

Burry's track record earns the warning serious analytical weight. His bet against the 2008 housing market was not luck but a careful reading of loan-level data that most institutional investors were not examining. His current concern — that automated, rules-based funds can create a mechanical selling cascade that disconnects price action from fundamentals — is structurally sound and consistent with what modern market microstructure research shows about the behaviour of vol-targeting and risk-parity funds.

The counterargument is that Burry has been early before — sometimes by years — and the same vol-control dynamics he warns about are self-aware to some degree: fund managers and exchanges have built circuit breakers and position limits specifically informed by 1987. The S&P 500 making new highs on the back of genuine earnings beats from the world's largest companies is not inherently irrational. CAT posted its first-ever $20 billion revenue quarter in the same earnings cycle Burry is warning against. The tension between genuine economic momentum and structurally fragile market mechanics is real — and unresolved. Burry's read on the mechanism is compelling; his timing may be wrong. OpenAI's projection of $100 billion in ad revenue by 2030 and Microsoft's rapid AI model iteration are among the commercial signals markets are currently pricing as durable; whether they are is exactly what Burry is betting against. Further context: Anthropic Adds Invisible Watermarks to All Claude AI Outputs Globally.