Jamie Dimon's dual stock and bond market warning: Investors already acted on one of the two calls

• The 10-year treasury currently yields 4.6%, with Dimon warning against long-dated bonds as prices remain under pressure from inflation uncertainty and deficit concerns
• ETF flow data shows investors withdrew funds from broad bond funds like Vanguard Total Bond Market (BND) and iShares Core U.S. Aggregate Bond (AGG) over the past year while piling into short-term treasury funds
• Short-term treasury fund SGOV ranked No. 5 among all ETFs in flows for June 2026, continuing a trend backed by investors like Warren Buffett who recommends 10% short-term treasuries allocation

Summary

JPMorgan CEO Jamie Dimon issued a dual warning on stocks and bonds this week, cautioning that investors may be underestimating equity market risks while advising against long-term Treasury investments. Dimon stated he wouldn't buy 10-year Treasuries at current levels, suggesting they should yield 4-4.5% compared to the current 4.6%.

Key Market Data:

• U.S. ETF market reached record inflows at mid-year, with equity ETFs capturing nearly half the total
• 10-year Treasury yield currently at 4.6%, rising throughout the year
• Short-term Treasury ETFs showing significant inflows

Investor Response:

While investors continue piling into equity ETFs at record levels, they've already heeded Dimon's bond warning. ETF flow data reveals a major shift toward short-term Treasury funds over the past year. The iShares 0-3 Month Treasury Bond ETF (SGOV) ranked fifth among all ETFs for June inflows, while longer-duration funds like Vanguard Total Bond Market (BND) and iShares Core U.S. Aggregate Bond (AGG) experienced outflows.

Market Implications:

The shift reflects concerns about persistent inflation, potential Fed rate hikes, and broader worries about public spending and deficit levels. Long-dated Treasury prices remain under pressure as yields move inversely. This strategy aligns with Warren Buffett's famous recommendation of 90% S&P 500 and 10% short-term Treasuries for long-term investors.

The trend suggests investors are acting defensively on bonds while maintaining equity exposure, despite Dimon's warnings about overvalued stock markets. The flight to short-term Treasuries represents a "safety" play without the duration risk of longer-dated bonds.