Treasuries Have Started Moving With Stocks. The 60/40 Bond Hedge Is Quietly Weakening

By Kresmion Research, June 28, 2026

The textbook job of a Treasury bond in a portfolio is to zig when stocks zag. That is the whole reason a 60/40 mix exists: when equities fall, bonds are supposed to rise and soften the blow. In practice that relationship has been mildly positive rather than negative for a few years now, with the 30-day correlation between intermediate Treasuries and the Nasdaq sitting near positive 0.10. In the latest 30-day window even that thin cushion has gone, with the same correlation climbing to about positive 0.57. Bonds are now moving with stocks, not against them. And it is not only bonds: gold and silver have re-rated the same way over the same stretch.

This is not a recommendation and it is not a forecast. It is a description of several relationships that have shifted at once, read directly from the price tape, and the fact that they shifted together is the most useful part.

Key takeaways

What the correlation data shows

Kresmion computes rolling correlations across assets every day and flags a pair when its current correlation pulls far from its own recent baseline. Right now the board is unusually crowded with one kind of break: safe assets moving like risk assets.

Intermediate Treasuries, the 7 to 10 year part of the curve, carry a 30-day correlation to the Nasdaq near positive 0.57, against a rolling baseline near positive 0.10, more than five times the normal reading. Against the Russell 2000 the same Treasuries sit near positive 0.70, and against the S&P 500 near positive 0.62. The long end tells the same story: 20-year-plus Treasuries are near positive 0.51 with the S&P, against a baseline near positive 0.17. Bonds across the curve are now rising and falling roughly in step with stocks.

The reason that matters is mechanical. A 60/40 portfolio leans on bonds being the diversifier, the sleeve that holds up when equities sell off. A bond book that moves at plus 0.57 to plus 0.70 with stocks is offsetting far less of the equity risk it is meant to cushion. Bonds still carry lower volatility than stocks, so the sleeve dampens swings somewhat even here, but the property that made it a hedge, moving the other way, is the part that has weakened.

It is not just bonds, which is the real signal

If only Treasuries had re-rated, it could be a bond story. But the same window shows gold running near positive 0.78 with the S&P, where it normally sits near positive 0.18, and silver near positive 0.69, where it normally sits near positive 0.28. Two different kinds of classic diversifier, government bonds and precious metals, have both started trading like risk assets at the same time.

That simultaneity is the point, and it is why this reads as a regime shift rather than a quirk of any one market. Gold and silver are the same precious-metals complex, so treat them as one signal, not two; but bonds and metals are genuinely different markets with different buyers. When two independent kinds of hedge weaken in the same direction over the same window, the simplest explanation is a shared macro force acting on both, rather than separate, asset-specific stories happening to coincide.

Why this is happening

The most likely driver is the level of real yields and the dollar, not growth fear. When the dominant force in markets is tight liquidity, an elevated real yield and a firm dollar, a wide range of assets gets repriced by the same lever. A high real yield lowers the price of existing bonds, raises the opportunity cost of holding zero-yield metals like gold and silver, and discounts future equity earnings, all at once. One force, many assets, same direction, so they move together.

The backdrop fits, and one piece of it is directly measurable. The 10-year real yield, the inflation-adjusted Treasury yield, sits near 2.19 percent, an elevated level by the standards of the past decade and a touch above the roughly 2.06 percent of a year ago (FRED). The dollar index has been trading near a one-year high around 101 (TradingEconomics). May PCE inflation, released June 25, came in hot at 4.1 percent on the headline and 3.4 percent on the core, which keeps the Federal Reserve from cutting and keeps real yields elevated (CNBC). In that regime, the things investors hold to diversify equity risk are exposed to the very same pressure as equities. We described the gold half of this pattern yesterday (Kresmion, June 27); the bond version reaches the larger and more widely held part of the same story.

The second-order problem

If bonds, gold, and silver are all moving with stocks, then the standard diversified portfolio is less diversified than it looks on paper. The classic answer to equity risk, spread it across bonds and a little gold, depends on those sleeves not falling at the same time as stocks. In the current window they have been moving together. This is the kind of thing that only shows up when you measure the relationships directly, because the assets are still doing their nominal jobs, paying coupons, holding value, while the one property that made them useful as hedges has weakened.

The counter-evidence

The honest case against over-reading this belongs in the open. First, positive correlation is not automatically bad. Bonds and stocks can rise together on a dovish surprise just as easily as they can fall together on a hawkish one. The danger of a weakened hedge only bites on a down day, and there has not been a sharp equity selloff since these correlations climbed, so the hedge has not actually been tested yet.

Second, the magnitude is measured against a low baseline. The "more than five times" figure is large partly because the baseline correlation was very low to begin with, and Kresmion's own baseline is already drifting up to absorb the shift, which means by its own measure this is becoming the new normal rather than widening further.

Third, a hot inflation print like the June 25 PCE release is itself a single shared shock, and one shared shock inside a 30-day window mechanically lifts cross-asset correlations for that window regardless of any lasting regime change. A 30-day correlation is a short window, and the latest cross-asset reading is from Friday June 26 since markets are closed over the weekend. Correlations that climb in one regime tend to ease back in the next.

What would change the read

One observable event settles this, and it is not a prediction. Watch the next day equities fall more than about 1 percent. If Treasuries catch a bid while stocks fall, yields down and the flight-to-quality flow back, then the hedge has reasserted itself and this stretch was transient liquidity-driven co-movement. If Treasuries fall alongside stocks again, then the read holds: in this regime, the classic hedges are hedging less, and a diversified book is carrying more correlated risk than it appears to.

Frequently asked questions

Have Treasuries really stopped hedging stocks?

In the latest 30-day window, by the numbers, they have been hedging much less than usual. The correlation between intermediate Treasuries and the Nasdaq has run near positive 0.57, and near positive 0.70 against the Russell 2000, where the recent normal is closer to positive 0.10 to 0.20. That means bonds have been moving with stocks rather than against them. It is a description of recent behavior, not a permanent change, and correlations shift back with the macro regime.

Why would bonds, gold, and silver all move with stocks at once?

The most likely explanation is a single macro force: real yields and the dollar. A higher real yield lowers bond prices, raises the cost of holding zero-yield metals, and discounts equity earnings at the same time. When one lever moves several assets, they move together. That is why two different kinds of hedge weakening in the same direction at the same time points toward a regime rather than to any one market's own story.

What does this mean for a 60/40 or a diversified portfolio?

For the moment, the diversification is weaker than it looks. The bond sleeve is supposed to offset equity drawdowns, and a bond book correlated at plus 0.57 to plus 0.70 with stocks is offsetting less of them. The same applies to a gold or silver allocation held as a hedge. The diversifying power of these assets depends on a relationship that is not fixed, and right now it has weakened.

How does Kresmion surface this when a single price chart does not?

Kresmion computes rolling correlations across assets every day and flags a pair when its current correlation pulls far from its own recent baseline. A single bond chart shows the price. The change in how Treasuries relate to stocks, and the fact that gold and silver are doing the same thing at the same time, only appears when you measure those relationships continuously and compare each one to what is normal for it.

Sources

• Kresmion proprietary data, as of June 26, 2026: cross-asset rolling correlations and correlation-break detection (correlation_breaks), covering intermediate Treasuries (IEF) and long Treasuries (TLT) against the S&P 500, Nasdaq, and Russell 2000, plus gold (GLD) and silver (SLV).
• FRED, 10-Year Treasury Inflation-Indexed Security real yield (DFII10). https://fred.stlouisfed.org/series/DFII10
• CNBC, May 2026 PCE inflation report. https://www.cnbc.com/2026/06/25/pce-inflation-report-may-2026-.html
• TradingEconomics, U.S. Dollar Index. https://tradingeconomics.com/united-states/currency
• Kresmion Research, gold safe-haven correlation note, June 27, 2026. https://kresmion.com/daily-brief/2026-06-27