The evidence provided by the primary sources strongly and consistently supports the statement. Multiple high-authority financial institutions, including the BlackRock Investment Institute and Charles Schwab, are cited as explicitly documenting recent events where US stock prices (specifically the S&P 500) increased or rallied concurrently with a fall in U.S. 10-year Treasury yields. For instance, one source is described as a weekly commentary that directly observes the S&P 500 rallying as yields fell. Another is a market data update showing major stock indices increasing while the 10-year Treasury yield decreased. Further supporting this, an analysis from Bank of America is cited, which forecasts an S&P 500 increase alongside a downtrend in the 10-year Treasury yield, reinforcing the credibility of this inverse relationship in market analysis. While some sources are gateways or data portals (like the U.S. Department of the Treasury's yield data) and don't make the connection themselves, they provide the means to verify one half of the statement. Crucially, none of the provided sources offer any conflicting evidence or data that would contradict the claim. The cumulative weight of direct observations and expert analysis from credible financial institutions makes it highly probable that this event occurred as stated.