Net Investment Income (NII)

Net investment income (NII) is investment income remaining after the expenses reported against it. In BDC analysis, it helps describe the earnings generated by the investment portfolio after financing and operating costs. It is different from the broader result that also includes investment gains and losses.

What enters net investment income?

A BDC’s statement of operations shows the relevant income and expense categories. Read the actual presentation, including any taxes, instead of assuming that every company uses an identical adjusted number. Ares Capital’s 2025 results, published February 4, 2026, provide a reporting example that distinguishes investment income, expenses, taxes and investment gains or losses.

A net investment income example

Suppose a hypothetical BDC reports $12 million of investment income and $5 million of applicable expenses, with no additional tax or other adjustments. NII would be $7 million. With 10 million shares for the simplified calculation, NII would be $0.70 per share.

A $0.60 quarterly dividend would be below that quarter’s NII. However, this comparison says nothing by itself about the following quarter. If investment income fell to $10 million while expenses stayed at $5 million, the simplified NII figure would fall to $0.50 per share. The unchanged dividend would then exceed it.

Read the quality as well as the total

Ask what changed: portfolio size, investment yields, financing costs or another component. Separate a recurring change from an unusual event. Also distinguish recognized earnings from cash received. Non-cash items can matter when assessing the relationship between reported income and cash requirements.

Comparing per-share figures helps avoid mistaking a larger company for a more productive investment per share. Keep the reporting period and earnings definition consistent throughout the comparison.

Dividend analysis

Use the earnings measure the company identifies as the source of its dividend. NII may be that measure, but the company must establish the connection. The formal four-quarter estimate combines the two most recently reported actual quarters with the following two quarters of current independent analyst consensus. Multiplying one quarter’s NII by four is not the same method.

This article is for education and information, not individualized investment, tax, or legal advice.