Several independent signals are lining up around the same conclusion: US stocks are priced for very little room for error. The Federal Reserve recently noted that the S&P 500's equity risk premium — the extra return investors demand for holding stocks over safer assets — is near its lowest level in decades. A low risk premium generally means investors are paying a high price for expected future returns.
Separately, market historians have pointed out that a specific valuation pattern now showing up in US stocks has occurred only twice before since 1871, and both prior instances were followed by market declines. Warren Buffett has also weighed in with blunt commentary on the current setup, adding his voice to the same warning.
What remains unresolved is timing. A low equity risk premium or a rare historical pattern is not a signal of when a decline might happen, only that valuations leave little cushion if sentiment turns. None of the three sources named a specific date or trigger for a pullback.