Excess liquidity turns negative for first time since 2021, threatening stocks

A key macro indicator that fueled the post-pandemic bull market has flipped, signaling mounting headwinds for US equities over the next three to six months.

Global excess liquidity has turned negative for the first time since 2021, a shift that Bloomberg strategist Simon White says could pressure US stocks as the primary fuel for risk assets evaporates. The measure — money supply growth minus inflation and economic expansion — has flipped below zero and continues to decline, historically a precursor to weaker equity returns and a flattening yield curve.

"The excess liquidity measure has turned negative and continues to fall," White wrote in a note published Wednesday. "Historically, this has led to a flattening yield curve and weaker equity returns over the following three to six months."

The shift coincides with a broader tightening in financial conditions. The Federal Reserve under new Chairman Kevin Warsh held its benchmark rate steady at his first policy meeting, while nine of 18 officials penciled in at least one rate hike by year-end. Two-year Treasury yields jumped 16 basis points to 4.21%, their highest level in over a year, as traders boosted the probability of a September rate increase to 49% from 27% the prior day. The S&P 500 fell 1.21% on the decision, while the Dow Jones Industrial Average dropped 507 points, or 0.98%.

The equity-bond relative valuation now sits near the 95th percentile of its 50-year history, according to White's analysis, meaning even a modest mean reversion could trigger a significant correction. The liquidity drain is compounded by a structural shift in supply: US net stock issuance has turned positive for the first time since the pandemic, as companies return to IPO and secondary markets. "The real challenge isn't recession — it's the tension between contracting liquidity and elevated valuations," White said.

Rate Gap Narrows as Global Tightening Persists

White's analysis shows the gap between the terminal rate and the neutral rate is shrinking, meaning monetary policy is becoming increasingly restrictive even without explicit rate hikes. Globally, central banks are tilting hawkish as war-driven inflation pressures spread. The model projects further upside in long-term real interest rates over the coming months, signaling the tightening cycle has further to run. Inflation stands at 4.2%, double the Fed's 2% target and the highest in three years, giving policymakers little room to ease.

Retail Euphoria Meets Liquidity Reality

US equity ETFs recorded their second-highest monthly inflow on record in May, with retail investors piling into AI and tech names. Historically, retail tends to be the most aggressive buyer in the late stages of a bull market. The divergence between euphoric sentiment and deteriorating liquidity creates a fragile setup. "When the liquidity tide goes out, sentiment-driven inflows won't sustain prices," White warned. The VIX, while not spiking, has begun to creep higher as options markets price in increased tail risk for the second half of the year.

This article is for informational purposes only and does not constitute investment advice.