MBB Dividend: Yield, Schedule, and What to Expect
Last updated July 2026
Short answer
MBB's approximate 4.26% yield (as of August 2026) makes it an income-oriented fund, about $426 a year on a $10,000 position before tax. It tracks a US mortgage-backed securities index and passes through the income its holdings generate, usually quarterly, net of the 0.04% expense ratio. If income is your goal, MBB earns its place as a yield-paying core holding. If total return is the goal, the yield matters less than cost and what it holds. Yield is a recent snapshot, not a promise; verify the current figure with iShares.
How does the MBB dividend work?
MBB holds what is in a US mortgage-backed securities index, collects the income those holdings generate, and distributes it to shareholders on the schedule the fund sets, most often quarterly, net of its 0.04% fee. The yield you see is trailing distributions divided by price, so it drifts as both change: a falling price raises the quoted yield without a single extra dollar being paid out.
MBB holds US mortgage-backed securities, bundled into one ticker. It launched in 2007. It distributes about 4.26%, and that payout moves with rates rather than being fixed. It charges 0.04%.
What MBB's dividend pays on a real position
- Approximate yield: 4.26% (August 2026).
- Income on $10,000: roughly $426 a year before tax, or about $4,260 on $100,000.
- Versus the market: the S&P 500 yields around 1.2%, so MBB pays more.
- Schedule: set by the fund, most often quarterly. iShares publishes the exact ex-dividend and pay dates.
- Fee: the 0.04% expense ratio comes out before you receive anything, so the yield above is already net of it.
How MBB distributions are taxed
A large share of MBB's distributions are usually qualified dividends, taxed at long-term capital-gains rates rather than as ordinary income, provided the holding-period tests are met by both the fund and you. Some portion can still be ordinary, and REIT or option-income components generally are. iShares's annual 1099 shows the actual split. Inside an IRA, Roth, or 401(k) none of it applies while the money stays in the account. Full detail is in how dividends are taxed. This is not tax advice.
If income is your goal, compare MBB against dividend-focused funds. See the best dividend ETFs roundup and best ETFs for monthly income, or analyze how MBB's income fits your real portfolio in Walnut.
The bottom line on the MBB dividend
The bottom line: at an approximate 4.26% yield, MBB is an income-oriented fund. If income is your goal, its yield earns its place alongside the a US mortgage-backed securities index exposure it carries. If total return is the goal, the yield matters less than cost and what it holds. Treat the figure as a moving snapshot, not a fixed rate, and verify the current yield with iShares.
More on MBB
- What is MBB? (holdings, cost, performance, and the themes it covers)
- Is MBB a buy? (what you are buying, the case for it, and what to weigh)
Investing in MBB with AI
Connect the broker you already use and ask Walnut's AI how MBB fits what you actually hold: what it overlaps with, what it leaves you exposed to, and how it has tracked the S&P 500. Read-only by default, and you approve anything before it reaches your broker.
FAQ
What is MBB's dividend yield?
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Approximately 4.26% as of August 2026. On a $10,000 position that is roughly $426 of distributions a year before tax. The S&P 500 yields around 1.2%, so MBB pays meaningfully more than the broad market. Yield is trailing distributions divided by price, so it moves when either changes; verify the current figure on iShares's fund page.
How often does MBB pay a dividend?
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Equity ETFs like MBB most often distribute quarterly, though the schedule is set by the fund, not by a rule, and some funds pay monthly, semi-annually, or annually. iShares publishes MBB's distribution calendar with the exact ex-dividend and pay dates; that is the authoritative source. The mechanic that matters either way: you have to own the shares before the ex-dividend date to receive a given distribution.
Does MBB pay monthly dividends?
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Probably not. MBB is an equity fund, and equity ETFs generally distribute quarterly; monthly distributions are the norm for bond, Treasury, and option-income funds instead. Check iShares's distribution calendar for MBB's actual schedule, and see our roundup of the best ETFs for monthly income if the cadence is what you are after.
Where does MBB's dividend come from?
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MBB tracks a US mortgage-backed securities index and holds names such as BISXX. The fund collects the income those holdings generate and passes it through to you. The 0.04% expense ratio is taken out along the way, so the yield you see is already net of the fee: you do not pay it separately.
When is MBB's ex-dividend date?
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iShares sets and publishes it on MBB's fund page, and it moves with each distribution, so we do not quote a fixed date here. What it means is the cutoff: buy on or after the ex-dividend date and the seller keeps that distribution. Buying just before the ex-date to capture a payment is not free money, because the fund's price typically drops by roughly the distribution amount when it goes ex.
Can I reinvest MBB dividends?
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Yes. Most brokers let you turn on automatic dividend reinvestment (a DRIP) so MBB distributions buy more shares, often fractional ones, without you doing anything. It compounds the position over time. It does not change the tax treatment: in a taxable account the distribution is taxable in the year it is paid, whether you reinvest it or take the cash.
Is MBB a good choice for dividend income?
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Walnut is informational, not investment advice. MBB yields roughly 4.26%, which is a genuine income yield. At that rate, $100,000 in MBB generates roughly $4,260 a year before tax. The trade-off to check is what you give up elsewhere: higher-yielding funds often tilt toward slower-growing sectors or use options strategies that cap upside. See the best dividend ETFs roundup to compare.
Are MBB dividends qualified?
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Usually a large share of them are. Dividends passed through from US companies are qualified, and so taxed at long-term capital-gains rates, when the fund and you both meet the holding-period tests. Some portion can still be ordinary income, and option-income and REIT distributions generally are. iShares's annual 1099 shows the actual split. In an IRA or Roth the distinction does not matter. This is not tax advice.
Walnut is informational, not investment advice. Dividend yields and schedules are approximate, stamped to August 2026, and change; verify current figures with iShares or your broker.