Hedging Power of Treasuries Tested by Recent Bond Selloff

Even as stocks rallied back during the monetary panic last week, big disruptions in the world of Treasuries threaten fresh pain for a host of hedging strategies on Wall Street.

Benchmark bonds capped their worst weekly selloff of the year Friday, with yields touching the highest in 15 years. For portfolios that rely on the world’s largest bond market to mitigate volatility elsewhere, the selloff has proved particularly troublesome. A Bloomberg gauge of the popular 60/40 model has slumped roughly 6% since the July peak, while the largest risk-parity exchange-traded fund is down 12%.

The synchronized selloff eased Monday as the Middle East conflict sparked a haven bid for Treasury futures while equities dropped. Yet in-tandem moves between both asset classes in recent months are reigniting a debate over the hedging power of Treasuries in an era where stocks and bonds are both prone to selloffs amid concerns of further Federal Reserve tightening.

The 90-day correlation between the $37 billion iShares 20+ Year Treasury Bond ETF (ticker TLT) and $398 billion SPDR S&P 500 ETF Trust (ticker SPY) reached the highest since 2005 last week, according to data compiled by Bloomberg.

“For investors in the 60/40 portfolio, the ongoing volatility in a high rates environment is stomach-churning,” Apollo Global Management chief economist Torsten Slok wrote in a recent note. “With an outlook of high rates and slowing earnings — which is needed to get inflation under control — the outlook for the 60/40 portfolio remains negative.”

Stock Bond Correlation Builds