Oklahoma’s investment portfolio reached $18 billion in July, an increase of approximately $200 million from the same month last year, according to the Oklahoma State Treasurer’s Office.
The portfolio earned a 3.80% yield, up from 3.71% in July 2025, and had a weighted average maturity of 908 days.
“July’s portfolio performance reflected continued stability as markets responded to changing economic conditions,” Oklahoma State Treasurer Todd Russ said. “Our balanced and disciplined investment strategy continues to provide stability while positioning the state to earn competitive returns.”
U.S. Treasurys accounted for 76.1% of the portfolio. Money market mutual funds made up 11.3%, while mortgage-backed securities accounted for 10.5%. The remainder included state and foreign bonds, U.S. government agencies and certificates of deposit.
The Treasurer’s Office said financial markets were mixed during July as longer-term Treasury yields increased and concerns continued over inflation and interest rates.
The 10-year Treasury yield rose to 4.74%, while the 30-year yield reached 5.27%, its highest level since 2007.
The Federal Reserve held the federal funds rate at 3.50% to 3.75% during its July meeting. Inflation moderated for the second consecutive month, with the Consumer Price Index increasing 3.4% from a year earlier, compared with 3.5% in June.
The Treasurer’s report also showed signs of slowing economic activity. Retail sales declined 0.6% in July, existing home sales fell 1.7% from June and second-quarter real gross domestic product increased at an annualized rate of 1.5%.
