Paulsen Warns Private Sector GDP Growth Slows to 1% in Q1, Signaling Potential Stock Market Volatility

According to Business Insider, Jim Paulsen, former chief investment officer at Leuthold Group, warned recently that a concerning economic imbalance could foreshadow market turbulence. In a Substack post, Paulsen noted that private sector real GDP growth slowed to just 1% year-over-year in Q1 2026, while public sector growth reached 4%—a reversal of the typical historical pattern where private sector growth outpaces government expansion.

Paulsen's historical analysis shows that when public sector contributions exceed private sector contributions to GDP growth, U.S. stock markets tend to underperform. Such imbalances historically occurred during World War II, the years following the 2008 financial crisis, and the COVID-19 pandemic. Rising interest rates and higher energy prices are expected to further constrain private sector momentum in Q2, with Paulsen cautioning that this dynamic "could bring volatility to the stock market."