The 10-year Treasury yield has risen back above 4%, despite concerns over tariff threats impacting economic growth. This movement comes as Treasury bonds experience their worst selloff in two years, coinciding with a stabilization in the stock market. The bond market’s volatility has notably lifted the 30-year yield to its highest point since March 2020. Despite these fluctuations, Treasuries continue to serve as a haven for investors, even amidst worries about potential stagflation fueled by broader economic policies. — new from WSJ