Warren Buffett Indicator Hits 230%: Is the Famous Market Bubble Signal Broken?

TLDR:

• The Buffett Indicator hit 230%, its highest level ever, sparking widespread bubble concerns across markets.

• US firms now earn up to 67% of revenue abroad, but GDP only tracks domestic output, skewing the ratio.

• The Fed’s balance sheet surpassed $9 trillion through QE, inflating stock prices without lifting GDP equally.

• Since crossing 100% in 2013, the S&P 500 tripled, revealing the indicator’s weak predictive track record.

The Warren Buffett Indicator has reached 230%, its highest level ever recorded. Many analysts are calling this the largest stock market bubble in history.

However, a closer look at the formula raises serious questions. The metric may be structurally outdated for today’s global, digital economy. Several key factors suggest the indicator no longer reflects market reality as it once did.

A Formula Built for a Different Era

The Buffett Indicator compares total US stock market value to US GDP. Yet today’s largest American companies earn massive revenues overseas.

Goldman Sachs estimates 28% of S&P 500 revenue now comes from outside the US. In technology, that figure climbs even higher. Information technology firms derive 56% of revenue abroad, while semiconductors reach 67%.

The original metric also used GNP, not GDP. GNP tracks production by US-owned businesses globally, while GDP only measures domestic output.

Modern analysts quietly swapped GNP for GDP without adjusting historical benchmarks. That substitution alone pushes today’s readings artificially higher.

Beyond revenue geography, GDP also fails to capture the digital economy’s full value. Services like Google Search, YouTube, and Instagram generate enormous economic activity. Yet users access them for free, so their value rarely enters GDP figures.

As Bull Theory noted on X, “The stock market prices global cash flows. GDP only measures domestic production.”

Corporate profit margins have also shifted structurally. US corporate profits recently reached nearly 14% of GDP. Historically, that figure averaged around 7–8%.

Higher structural profits naturally support higher market valuations, something the original indicator never accounted for.

The Indicator’s Track Record Tells a Complicated Story

The Buffett Indicator crossed 100% back in 2013. Since that point, the S&P 500 roughly tripled in value. Mega-cap technology companies dominated markets, and corporate profits surged.

A major study found the indicator correctly predicted only about 50% of large market declines, barely better than a coin flip.

The Federal Reserve’s balance sheet also fundamentally changed market dynamics. Before 2008, the Fed held under $1 trillion in assets.

Through quantitative easing, that figure later surpassed $9 trillion. That liquidity boosted stock prices without equally lifting GDP, pushing the ratio far beyond its original thresholds.

International comparisons further challenge the model’s reliability. Taiwan’s Buffett Indicator sits around 325%, while Hong Kong’s exceeds 1,000%.

Both markets host globally dominant companies earning revenues far beyond their borders. The US market is increasingly following a similar pattern.

None of this confirms that stocks are fairly valued. Markets can still decline sharply regardless of what the indicator suggests.

However, applying a 2001-era formula to a 2026 global economy produces readings that require far more context than a single percentage can provide.

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