BETHESDA, Md., Sept. 16, 2026 /PRNewswire/ — AGNC Investment Corp. (Nasdaq: AGNC) (“AGNC” or the “Company”) announced today that it will be added to the S&P MidCap 400 Index, effective prior to the open of trading on Monday, September 21, 2026. S&P Dow Jones Indices announced AGNC’s addition to the S&P MidCap 400 Index as part of its September quarterly rebalance.

“AGNC’s addition to the S&P MidCap 400 Index represents an important milestone for the Company,” said Peter Federico, the Company’s President, Chief Executive Officer and Chief Investment Officer. “Inclusion in this widely followed index is a testament to the scale AGNC has attained over our 18-year history. Since inception, AGNC has been a significant source of private capital for the U.S. housing market, and we have remained steadfast in our focus on delivering attractive yield-driven total returns for our stockholders through a specialized approach to Agency MBS investing.”

The S&P MidCap 400 Index measures the performance of the mid-cap segment of the U.S. market and is composed of 400 constituent companies. AGNC will also become a constituent of the S&P Composite 1500, the S&P 900, and the S&P 1000 indices as a result of its addition to the S&P MidCap 400 Index. For more information regarding the S&P MidCap 400 Index and S&P Dow Jones Indices, please visit www.spglobal.com.

For further information or questions, please contact Investor Relations at (301) 968-9300 or IR@AGNC.com.

ABOUT AGNC INVESTMENT CORP.
Founded in 2008, AGNC Investment Corp. (Nasdaq: AGNC) is a leading investor in Agency residential mortgage-backed securities (Agency MBS), which benefit from a guarantee against credit losses by Fannie Mae, Freddie Mac, or Ginnie Mae. We invest on a leveraged basis, financing our Agency MBS assets primarily through repurchase agreements, and utilize dynamic risk management strategies intended to protect the value of our portfolio from interest rate and other market risks.

AGNC has a track record of providing favorable long-term returns for our stockholders through substantial monthly dividend income, with over $16 billion of common stock dividends paid since inception. Our business is a significant source of private capital for the U.S. residential housing market, and our team has extensive experience managing mortgage assets across market cycles. To learn more about The Premier Agency Residential Mortgage REIT, please visit www.AGNC.com, follow us on LinkedIn and X, and sign up for Investor Alerts.

FORWARD LOOKING STATEMENTS
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act. Forward-looking statements are based on estimates, projections, beliefs and assumptions of management of the Company at the time of such statements and are not guarantees of future performance. Forward-looking statements involve risks and uncertainties in predicting future results and conditions. Actual results could differ materially from those projected in these forward-looking statements or from our historic performance due to a variety of important factors, including, without limitation, changes in monetary policy and other factors that affect interest rates, MBS spreads to benchmark interest rates, the forward yield curve, or prepayment rates; the availability and terms of financing; changes in the market value of the Company’s assets; general economic or geopolitical conditions; liquidity and other conditions in Agency MBS and other financial markets; and legislative and regulatory changes that could adversely affect the business of the Company. Certain factors that could cause actual results to differ materially from those contained in the forward-looking statements are included in the Company’s periodic reports filed with the Securities and Exchange Commission (“SEC”). Copies are available on the SEC’s website, www.sec.gov. The Company disclaims any obligation to update or revise any forward-looking statements based on the occurrence of future events, the receipt of new information, or otherwise.

CONTACT:
Investors – (301) 968-9300
Media – (301) 968-9303

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SOURCE AGNC Investment Corp.