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Vanishing Equity Risk Premium Signals a Diversification Check
Neuberger Berman says the vanishing equity risk premium is a signal to verify diversification, not to abandon equities. The next marker is the 10-year yield path.
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The equity risk premium has effectively vanished. Neuberger Berman’s latest CIO weekly note frames this as a structural shift in the reward for taking equity risk, not a short-term panic trigger. For a portfolio manager running a balanced book, the disappearance of the ERP usually triggers a defensive reflex. The firm argues that the correct response is to verify diversification, not to abandon equities.
What the Vanishing ERP Means for Multi-Asset Portfolios
The equity risk premium is the excess return investors expect from stocks over a risk-free asset like Treasuries. When it vanishes, the math says equities no longer compensate for their higher volatility. The naive read is simple: sell stocks, buy bonds. The better market read is more nuanced.
A vanishing ERP often coincides with falling bond yields and compressed discount rates. That environment can support elevated equity valuations as long as earnings hold. The mechanism is a rotation in the discount rate, not a collapse in corporate cash flows. Neuberger Berman’s framing suggests the premium’s disappearance reflects a low-rate equilibrium rather than a bubble.
Why Diversification Is the Real Hedge
The firm’s core argument is that a genuinely diversified portfolio absorbs the signal without requiring a tactical pivot. A portfolio holding Treasuries, credit, real assets, and equities already owns the hedge against the ERP compression. The risk is not the vanishing premium itself. The risk is a portfolio that relies entirely on equity beta for returns.