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Forget 30 Years of Stock and Bond Divergence, Bernstein Says

The new era will be marked by rising or more volatile inflation.

By Cormac Mullen

(Bloomberg) --It was nice while it lasted.

Three decades of divergence between stocks and bonds may be about to end, according to Sanford C. Bernstein & Co., necessitating a total shift in investor assumptions. The new era, marked by rising or more volatile inflation, will see equities and bonds return to the correlation they’ve displayed since 1763, analysts led by Inigo Fraser Jenkins wrote in a recent note to clients.

Despite positive returns from both asset classes in recent years, brokerage and research firm Bernstein says that correlations have been in fact negative, an unusual occurrence historically. They attribute this to the decline in the level of inflation. “If the path of inflation is set to be generally upward from here then we should expect this correlation to rise,” the analysts said.

Now, not only will investors find it harder to diversify, they’ll also have to contend with rising volatility and a “markedly lower” return outlook for both asset classes.

“A 60:40 allocation to passive long-only equities and bonds has been a great proposition for the last 35 years,” the analysts said. “We are profoundly worried that this could be a risky allocation over the next 10.”
 
To contact the reporter on this story: Cormac Mullen in Dublin at [email protected] To contact the editors responsible for this story: Samuel Potter at [email protected] V. Ramakrishnan

TAGS: Fixed Income
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