MBBA · iShares Mortgage-Backed Securities Active ETF
MBBA returned −2.8% from Jan 26, 2026 to Oct 14, 2026, charges 0.25% a year and holds $719m in net assets on Oct 13, 2026.
MBBA is actively managed and returned −2.8% since it first traded on Jan 26, 2026.
Price and total return since launch, Jan 26, 2026
$47.22+0.1%1 day, priceClose, Oct 14, 2026
Total return adds every distribution, reinvested. Computed by ETFIQ from Tiingo daily prices.
| Window | Total return |
|---|---|
| 1M Sep 14 – Oct 14, 2026 | −1.0% |
| 3M Jul 15 – Oct 14, 2026 | −3.5% |
| 6M Apr 15 – Oct 14, 2026 | −3.5% |
| Since launch Jan 26 – Oct 14, 2026 | −2.8% |
Total return at closing prices, distributions reinvested. Every column is a total return. Not shown: year to date, 1 year and 3 years, which the fund has not been listed long enough to fill (listed Jan 2026); its since-launch row covers all of its record. Source: ETFIQ.
Money in and out
Daily figures · as of Oct 13, 2026MBBA: in the 432 trading days to Oct 13, 2026, net $730m came in.
Oct 13, 2026
Oct 7, 2026 to Oct 13, 2026
Sep 14, 2026 to Oct 13, 2026
Jul 14, 2026 to Oct 13, 2026
SEC filings, then daily counts
MBBA, net flow each trading day over the 63 sessions from Jul 16, 2026 to Oct 13, 2026: money came in on 21 days and went out on 0 days.
Money in on 21 of the 63 trading days, out on 0.
MBBA, net flow each trading day over the 252 sessions from Oct 13, 2025 to Oct 13, 2026: money came in on 26 days and went out on 3 days, of the 181 days with a daily figure; the other 71 have none. Before Jan 26, 2026 ETFIQ has the fund’s monthly figures only, from SEC filings: that span is shaded and draws no bars, and its months are in the month by month list.
Money in on 26 days, out on 3. Daily figures for 181 of 252 trading days; none for 71.
MBBA, net flow each trading day over the 400 sessions from Mar 12, 2025 to Oct 13, 2026: money came in on 26 days and went out on 3 days, of the 181 days with a daily figure; the other 219 have none. Before Jan 26, 2026 ETFIQ has the fund’s monthly figures only, from SEC filings: that span is shaded and draws no bars, and its months are in the month by month list.
Money in on 26 days, out on 3. Daily figures for 181 of 400 trading days; none for 219.
ETFIQ’s daily counts for MBBA start Jan 26, 2026, so the year to date and 1 year windows have no daily figure.
How this is computed
Computed by ETFIQ from iShares’s daily figures: each day’s change in shares outstanding times the previous day’s net asset value. Percentages are of net assets at the start of each window. Figures are net: money in less money out. Checked against the filing: The month’s daily sum and the filing’s B.6 figure agree within rounding or, where the filing’s is larger, within rounding plus the fund’s creation and redemption fees. The full rule is in the fund’s flows file. Every day and month ETFIQ holds for MBBA, back to Jan 2026, is in its flows file. Flows across every fund · How these flows are computed · Compare MBBA with other funds in the flows tool
Every trading day, last 3 months65 days
Most recent first.
Week by week, last year38 weeks
Net flow into MBBA each week, Jan 26, 2026 to Oct 13, 2026, most recent first, each week named by its last trading day with a figure. Computed by ETFIQ.
Month by month, money in and money outJan 2026 to Oct 2026
MBBA, money in and money out each month from Jan 2026 to Sep 2026: two bars a month, money in above the line and money out below. Bars for Jan 2026 to Jul 2026 are from MBBA’s SEC filings (N-PORT item B.6), and for Aug 2026 to Sep 2026 ETFIQ’s sums of its days. Oct 2026 is still in progress, so it is in the list and not drawn. Of the 10 months listed, money came in on net in 6 and went out in 4.
Bars for Jan 2026 to Jul 2026 are from MBBA’s SEC filings (N-PORT item B.6), and for Aug 2026 to Sep 2026 ETFIQ’s sums of its days. Of the 10 months listed, money came in on net in 6 and went out in 4.
Most recent first.
How this is computed
N-PORT months: money in is sales plus reinvestments; money out is redemptions. Months summed from daily figures: money in adds the days money came in; money out adds the days it went out.
N-PORT months are the filed sales plus reinvestments less redemptions. Later months add up the daily figures; the Source column names any missing day.
About MBBA
Questions people ask about MBBA
- What does MBBA cost?
- The prospectus expense ratio is 0.25% a year.
- How far is MBBA below its high?
- 4.5% below its high of Feb 27, 2026, measured on the reinvested series to Oct 14, 2026.
ETFIQ links to the documents behind every figure; a link is not an endorsement.
Cite this pageCitation, APA and Markdown
ETFIQ, MBBA, bond fund, data as of Oct 14, 2026. https://etfiq.com/funds/mbba
ETFIQ. (Oct 14, 2026). MBBA, bond fund. Retrieved from https://etfiq.com/funds/mbba
[MBBA, bond fund (ETFIQ, Oct 14, 2026)](https://etfiq.com/funds/mbba)
Free to use with attribution for figures ETFIQ computes; issuer data stays under its owner's terms. The underlying files are at Open data.
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