AGNC Investment: 14% Yield and Declining Tangible Net Book Value Raise Questions for Dividend Investors

Dividend investors often place too much emphasis on a stock’s dividend yield. While that can be understandable, it can become problematic if investors don’t look beyond the headline number. AGNC Investment’s roughly 14% yield is a case in point, particularly when compared with what the company reports about its underlying value.

What AGNC Investment does

AGNC Investment is a mortgage real estate investment trust (REIT). It manages a portfolio of bond-like securities created by pooling individual mortgages, operating in a way similar to a mutual fund.

Like mutual funds, which report portfolio value through net asset value (NAV), AGNC Investment reports its tangible net book value each quarter. This figure is roughly comparable to NAV and is intended to reflect what the business is worth.

AGNC’s reported value: tangible net book value

At the end of 2025, AGNC Investment’s tangible net book value was $8.88 per share. That compares with $8.41 per share at the end of 2024, but it is far below $22.59 per share at the end of 2015.

Why the dividend yield is so high

AGNC Investment distributes most of its taxable earnings to shareholders as dividends, as REITs typically do. However, because mortgage payments are self-amortizing, investors can effectively receive back capital over time. Over the long run, that dynamic has contributed to a shrinking tangible net book value.

The article notes that this has been accompanied by a steadily declining dividend. In that context, the yield being around 14% is described as being largely driven by the stock price falling alongside the dividend.

Is AGNC a reliable income investment?

The article argues that AGNC Investment is not a reliable dividend investment for investors trying to build an income stream they can live off of. The quarterly tangible net book value update is presented as a key element for evaluating the REIT’s situation.

At the same time, the article cautions against judging the investment solely on yield. It states that on a total return basis—assuming dividend reinvestment—the stock has outperformed the S&P 500 over time. However, the article emphasizes that investors cannot spend dividends if they are reinvesting them.

Is it worth buying?

Because AGNC Investment reports tangible net book value each quarter, the article suggests investors can assess whether the stock appears cheap or expensive relative to that figure. In general, it states that anything notably above tangible net book value may indicate investors are overpaying.

Still, the longer-term decline in tangible net book value is highlighted as a reason dividend-focused investors should proceed carefully. The yield is described as large, but the article frames it as coming at a high cost if dividends are spent rather than reinvested.