AGNC vs CIM: Which Is the Better Buy in 2026?

Same yardstick, side by side (as of August 2026). Valuation lined up like this is most meaningful for two names in the same corner of the market, which these are. Figures are approximate; verify before investing.

Reading it: CIM is the cheaper of the two on forward earnings, but cheaper is not the same as better. Pair the valuation with growth (how far the forward P/E sits below the trailing P/E) and risk (beta) before you decide.

The metrics above tell you which is the marginally better business. The bigger risk for most people is not picking the slightly worse stock, it is over-concentrating. AGNC and CIM share themes, so owning both, or adding either to what you already hold, can quietly push a large share of your portfolio into one bet.

This is the part a generic comparison page cannot answer, because it depends on what you own. Connect your brokerage and Walnut shows your real, combined AGNC and CIM exposure, flags overlap with your existing positions, and tells you if adding one would tip you past a concentration you are comfortable with, read-only by default, with your login staying at your broker. Walnut is not an investment adviser.

AGNC Investment Corp is a real estate investment trust that invests almost entirely in agency mortgage-backed securities, meaning residential mortgages guaranteed against credit loss by Fannie Mae, Freddie Mac, or Ginnie Mae. It uses substantial leverage, financing its portfolio in the repo market, and earns the spread between the yield on its MBS and its borrowing and hedging costs. That net spread, plus dollar-roll income, funds a monthly dividend that is the main reason most shareholders own the stock.

Full AGNC guide

Chimera Investment Corporation is a mortgage real estate investment trust that invests primarily in a diversified portfolio of residential mortgage assets, including whole loans, non-agency and agency mortgage-backed securities, and related credit investments. Like other mortgage REITs, Chimera borrows against these assets and earns the net interest spread between what its portfolio yields and what its financing costs, then distributes most of its taxable income to shareholders as dividends to maintain its REIT status. That structure makes the dividend the core of the investment case and makes book value per share a key gauge of health.

Full CIM guide

Both fit overlapping themes, but they are not interchangeable. The useful comparison is which set of drivers and risks you want exposure to.

• AGNC drivers: Very high monthly dividend; Agency-MBS spreads.
• CIM drivers: High dividend and REIT pass-through model; Diversified residential mortgage credit.

A faster-growing, richer-valued name usually swings harder, so it suits a longer horizon and a higher tolerance for volatility; a steadier, more cash-generative business suits a more conservative or income-minded investor. The honest test is which set of risks you could hold through a drawdown: AGNC's total return is the dividend minus changes in book value, and book value is highly sensitive to interest rates and MBS spreads. For CIM, the dominant risks are interest-rate and spread sensitivity: rising rates or widening mortgage spreads can reduce the value of Chimera's assets and compress its net interest margin, hurting both book value per share and the dividend.

Growth-minded investors who believe the theme has years to run tend to accept the richer multiple for more upside; value-minded investors lean toward the cheaper forward earnings and steadier profile. Pick AGNC if you believe its drivers more; CIM if you believe its. Many investors hold both, but since they share themes, that is a concentrated bet, not diversification. Decide deliberately and check overlap. For the full detail, see the AGNC and CIM guides.

AGNC. Agency mortgage REITs like AGNC trade around their book value per share, so price-to-book is the key valuation lens rather than P/E. The quoted double-digit yield is real but should be read alongside book-value trends: in Q1 2026 the dividend was largely offset by a roughly $0.50 decline in tangible book value, illustrating that the yield and the principal can move in opposite directions.

CIM. Figures are approximate and tied to the asOf date; verify live numbers before acting. Mortgage REITs like Chimera are usually valued on price relative to book value and on dividend coverage rather than on standard earnings multiples, because GAAP earnings swing with fair-value marks. A high headline yield can be attractive but should be weighed against the risk that book value erodes or the dividend is cut if rates and spreads move against the portfolio.

Headline figures (approximate, Q1 2026 (quarter ended March 31, 2026)): AGNC shows dividend yield ~14% (annualized), monthly dividend $0.12 ($1.44/yr), tangible book value/share ~$8.38, net spread + dollar roll income/share ~$0.42 (Q1); CIM shows dividend rate Quarterly common dividend of $0.45, an annualized $1.80 per share for 2026, q1 2026 gaap result Net loss of about $65 million, or roughly $0.78 per diluted share, earnings available for distribution About $46 million, or roughly $0.54 per share, covering the dividend, key metric Book value per share, driven by rates and mortgage spreads.

AGNC and CIM are related but distinct: same themes, different businesses and risks. Neither wins in the abstract; the right pick is whichever thesis you actually believe, sized so you are not over-concentrated in one theme. Walnut can show your combined AGNC and CIM exposure against your real portfolio. It is not an investment adviser.