Bitcoin has nearly halved to $66,000 since its $126,000 peak in October of last year, and the S&P 500 continues to hover near record highs above 7,500 points. But adjusting both assets for U.S. M2 money supply growth reveals a more sobering picture than nominal prices suggest — one where valuations shaped by monetary expansion paint concerning trends for risk appetite.
Market Context
M2 represents the Federal Reserve's estimate of liquid assets, encompassing cash on hand, checking and savings deposits, and short-term saving vehicles such as money market funds and certificates of deposit. When asset prices are viewed through this lens, both equities and bitcoin appear less impressive than their headline numbers indicate. The S&P 500 currently sits near a nominal record high of approximately 7,511 points, well above its 2000 peak of around 1,500 points — yet adjusted for two decades of M2 expansion, the index has only recently reclaimed that dot-com-era valuation level.
Analysis
Some market observers view bitcoin as a high-beta barometer for dollar liquidity. On that measure, the BTC/M2 ratio is now flashing warning signs. After climbing sharply from 2023 through 2025, the ratio appears to have formed what technical analysts identify as a head-and-shoulders pattern — typically interpreted as a bearish reversal signal. If this pattern holds, it would suggest bitcoin's exponential edge over money supply growth, the dynamic that allowed it to outrun currency debasement in prior cycles, may be approaching diminishing returns.
That matters beyond crypto. Bitcoin has at times served as a leading indicator for broader risk appetite, and the S&P 500's own money-supply-adjusted valuation tells a story distinct from its nominal price. While corporate earnings today are generally considered stronger and more durable compared to 1999-2000 — which doesn't necessarily mean equities are as overextended as they were at the dot-com peak — the monetary-adjusted analysis suggests every new dollar added to the system has had to work harder for relatively smaller marginal gains in valuation.
The implication: if bitcoin's structural advantage against M2 growth is genuinely eroding, it could serve as an early warning that equity nominal gains rest on a thinner foundation than they appear. Whether this translates into actual weakness remains to be seen, but when the most liquidity-sensitive asset shows signs of losing its battle against dollar supply expansion, caution for the broader risk-on complex may be warranted.
Key Numbers
- Bitcoin nominal peak: $126,000 (October 2025)
- Bitcoin current price: $66,000 (approximately 48% decline from peak)
- S&P 500 nominal high: ~7,511 points
- S&P 500 dot-com era nominal peak: ~1,500 points (2000)
What to Watch
Monitor whether the BTC/M2 head-and-shoulders pattern completes its bearish confirmation. Watch for further M2 growth trajectory as Federal Reserve policy evolves. Track whether bitcoin's price action continues underperforming money supply expansion — if so, it may herald broader risk-asset weakness ahead. Key levels to watch: bitcoin support at $60,000 and the S&P 500's monetary-adjusted breakout point around its post-2000 highs.