MBBA iShares Mortgage-Backed Securities Active ETF

ETF

ETF quote, holdings, sector allocation, technicals, and options analytics. Fibonacci levels

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MBBA — —
Key stats
About

iShares Mortgage-Backed Securities Active ETF (MBBA) ETF

No description available.

Exchange
BATS
Inception
1998-05-18
Has Options
No
Homepage
https://www.ishares.com/us
Fund profile
holdings as of Oct 20, 2026issuer datathrough Jul 2026flows, SEC filings
Taxable Bond Mortgage & Securitized#13 of 45 by assets iShares Actively managed
Expense ratio
0.25%
issuer, Oct 22, 2026
Assets
$730M
issuer-reported, Oct 20, 2026
Trailing yield
3.26%
paid monthly
Average daily volume
$23M
30 sessions
Holdings
710
top 10 are 46.4%
Listed
Jan 23, 2026
Cboe BZX
Net asset value
$47.36
issuer, Oct 21, 2026 · closed +0.12% to NAV
Median bid/ask spread
0.26%
30 days, issuer-reported
30-day SEC yield
4.51%
issuer, Oct 20, 2026
Distributions, 12 months
$1.55 a share
issuer, through Oct 1, 2026: 100% income
Closure risk, 12 months
0.3%
low · model
FrenzyCap ETF score
66
how it is built
Cost53
Liquidity79
Scale54
Diversification82

Moves with. Long Treasuries (41% of its variance, beta 0.27); US large-cap stocks (13% of its variance, beta 0.14); High yield over Treasuries (12% of its variance, beta -0.34); US dollar (4% of its variance, beta -0.09). These factors explain 73% of its daily moves over the last year.

Stated objective. The investment objective of iShares Mortgage-Backed Securities Active ETF (the Fund) is to seek to maximize total return, consistent with income generation and prudent investment management. (from the fund's prospectus)

All 710 holdingsFlow historyOverlap toolAll Mortgage & Securitized ETFs

Fund flows
daily as of Oct 20, 2026issuer datathrough Jul 2026SEC filings
Oct 20, 2026
$0
latest day
Latest 5 trading days
+$5.7M
Latest 21 trading days
+$565M
+77.5% of assets
Year to date
+$607M
Each day
Net creations of MBBA by day, Sep 22, 2026 to Oct 20, 2026
DayNet flow
Oct 20, 2026$0
Oct 19, 2026+$2.8M
Oct 16, 2026$0
Oct 15, 2026+$949K
Oct 14, 2026+$1.9M
Oct 13, 2026$0
Oct 12, 2026+$1.9M
Oct 9, 2026+$940K
Oct 8, 2026+$2.8M
Oct 7, 2026$0
Oct 6, 2026+$2.8M
Oct 5, 2026+$2.8M
Oct 2, 2026+$1.9M
Oct 1, 2026+$938K
Sep 30, 2026+$6.6M
Sep 29, 2026$0
Sep 28, 2026+$1.9M
Sep 25, 2026+$7.6M
Sep 24, 2026+$61M
Sep 23, 2026+$433M
Sep 22, 2026+$35M

Daily figures are the change in shares outstanding times net asset value, both as the issuer publishes them each day.

Jul 2026
+$977K
latest reported month
Latest 3 months
+$31M
+20.1% of assets
Latest 12 months
—
Jan 2026: −$48M−$48MJanFeb 2026: −$2.0MFebMar 2026: −$1.0MMarApr 2026: −$1.0MAprMay 2026: +$992KMayJun 2026: +$29M+$29MJunJul 2026: +$977KJul
View as a table
Net flows of MBBA by month, Jan 2026 to Jul 2026
MonthNet flow
Jul 2026+$977K
Jun 2026+$29M
May 2026+$992K
Apr 2026−$1.0M
Mar 2026−$1.0M
Feb 2026−$2.0M
Jan 2026−$48M

Net creations and redemptions from the fund's SEC filings, which become public about 60 days after each quarter. Every month since 7 months ago

Similar funds
FundOverlapFeeAssets1Y
MBBiShares MBS ETF—0.04%$35.2B−5.7%compare
VMBSVanguard Mortgage-Backed Securities ETF—0.03%$15.7B−5.2%compare
SPMBState Street SPDR Portfolio Mortgage Backed Bond ETF—0.04%$6.9B−5.7%compare
JMTGJPMorgan Mortgage-Backed Securities ETF—0.24%$6.7B−5.4%compare
SMBSSchwab Mortgage-Backed Securities ETF—0.03%$6.4B−6.3%compare

The largest other funds in the Mortgage & Securitized category.

Under the hood
fiscal year to Apr 30, 2026SEC census
Authorized participants
2 active
of 36 with agreements; top 3 did 100%
Created · redeemed
$0 · $4.0M
over the fiscal year
Redemptions in kind
0%
creations 0% in kind
Creation unit
20,000
shares
Securities lending
authorized, none lent

From the fund's annual census filing with the SEC. In-kind redemptions are what let an ETF shed appreciated securities without realising gains.

ETF Profile
holdings as of 2026-10-20
Holdings
710
AUM
$729.6M
Provider
iShares (BlackRock)
Inception
2026-01-23
Exchange
BATS
Data As Of
2026-10-20
Expense Ratio
0.25%
Dividend Yield
3.26%
Distribution
Monthly
Recent distributions
Ex-Date Pay Date Amount Type
2026-10-01 2026-10-06 $0.0747 CD
2026-09-01 2026-09-04 $0.1852 CD
2026-08-03 2026-08-06 $0.1946 CD
2026-07-01 2026-07-07 $0.1817 CD
2026-06-01 2026-06-04 $0.1995 CD
2026-05-01 2026-05-06 $0.2039 CD
Asset Allocation
Top Holdings
top 50 of 710 holdings
Symbol Name Weight % Asset Class Country
— UMBS 30YR TBA(REG A) 11.34% MBS/ABS US
— BLK CSH FND TREASURY SL AGENCY 7.91% Cash/Money Market US
— UMBS 30YR TBA(REG A) 6.18% MBS/ABS US
— FHLMC 30YR UMBS SUPER 4.94% MBS/ABS US
— GNMA2 30YR TBA(REG C) 4.80% MBS/ABS US
— FNMA 30YR UMBS 4.67% MBS/ABS US
— UMBS 30YR TBA(REG A) 3.58% MBS/ABS US
— FNMA 30YR UMBS SUPER 2.84% MBS/ABS US
— FNMA 30YR UMBS 2.80% MBS/ABS US
— GNMA2 30YR TBA(REG C) 2.67% MBS/ABS US
— FHSTR_436 AB 2.58% MBS/ABS US
— FHLMC 30YR UMBS 2.55% MBS/ABS US
— UMBS 15YR TBA(REG B) 2.54% MBS/ABS US
— GNMA2 30YR 2.07% MBS/ABS US
— GNMA2 30YR TBA(REG C) 1.95% MBS/ABS US
— FNMA 30YR UMBS 1.85% MBS/ABS US
— FHLMC 30YR UMBS SUPER 1.85% MBS/ABS US
— FNMA 30YR UMBS 1.80% MBS/ABS US
— FNMA 30YR UMBS SUPER 1.79% MBS/ABS US
— FNMA 30YR UMBS SUPER 1.66% MBS/ABS US
— GNMA2 30YR TBA(REG C) 1.65% MBS/ABS US
— FNMA 30YR UMBS SUPER 1.60% MBS/ABS US
— FHLMC 30YR UMBS SUPER 1.59% MBS/ABS US
— GNMA2 30YR 1.58% MBS/ABS US
— GNMA_22-208D PA 1.44% MBS/ABS US
— GNMA2 30YR TBA 1.43% MBS/ABS US
— FNMA 30YR UMBS SUPER 1.40% MBS/ABS US
— GNMA_26-28A PF 1.38% MBS/ABS US
— FHSTR_432 GA 1.36% MBS/ABS US
— UMBS 30YR TBA(REG A) 1.34% MBS/ABS US
— FHLMC 30YR UMBS SUPER 1.27% MBS/ABS US
— GNMA2 30YR TBA(REG C) 1.26% MBS/ABS US
— FNMA 30YR UMBS 1.16% MBS/ABS US
— UMBS 15YR TBA(REG B) 1.13% MBS/ABS US
— FNMA 30YR UMBS SUPER 1.10% MBS/ABS US
— FNMA 30YR UMBS SUPER 1.09% MBS/ABS US
— GNMA2 30YR TBA(REG C) 1.06% MBS/ABS US
— FNMA 30YR UMBS SUPER 1.03% MBS/ABS US
— FHLMC 30YR UMBS 1.01% MBS/ABS US
— FNMA 30YR UMBS SUPER 0.97% MBS/ABS US
— GNMA2 30YR TBA(REG C) 0.97% MBS/ABS US
— FHLMC 15YR UMBS 0.92% MBS/ABS US
— FHLMC 30YR UMBS 0.91% MBS/ABS US
— UMBS 15YR TBA(REG B) 0.90% MBS/ABS US
— FHLMC 15YR UMBS SUPER 0.89% MBS/ABS US
— FHLMC 30YR UMBS SUPER 0.85% MBS/ABS US
— GNMA2 30YR 0.83% MBS/ABS US
— GNMA2 30YR TBA(REG C) 0.83% MBS/ABS US
— GNMA2 30YR TBA(REG C) 0.82% MBS/ABS US
— FNMA 30YR UMBS SUPER 0.79% MBS/ABS US
Non-Equity Breakdown
iShares Mortgage-Backed Securities Active ETF · NPORT-P period 2026-07-31 (filed 2026-09-25)
Net assets: $152M · 555 total positions · equity 0.00% · non-equity 156.53%
Non-equity holdings — 555 positions, 156.53% of NAV
Category Weight Value Positions
Mortgage-backed (US Govt-Sponsored Entity) 93.79% $142.9M 215
Mortgage-backed (US Govt Agency) 42.50% $64.7M 246
Short-term investment 10.93% $16.7M 1
Mortgage-backed (Corporate) 9.53% $14.5M 61
Derivative (interest rate) -0.22% $-333557 32
Chart
Seasonality
'26Avg
Jan-0.01%-0.01%
Feb1.69%1.69%
Mar-1.53%-1.53%
Apr0.51%0.51%
May0.20%0.20%
Jun0.63%0.63%
Jul-1.32%-1.32%
Aug-0.19%-0.19%
Sep-3.25%-3.25%
Oct1.44%*1.44%
Nov----
Dec----
Total-1.91%-1.91%
* Only 1 year(s) of data available.
Technical Indicators

Quick-reference for reading the values below. Indicators combine to confirm a view — no single one is a trade signal on its own.

Trend Indicators
  • SMA 20 / 50 / 200 — price above = uptrend, below = downtrend. SMA 50 crossing SMA 200 is the golden/death cross.
  • EMA 12 / 26 — faster-reacting averages; 12 above 26 is short-term bullish.
  • MACD — bullish when MACD > signal (green badge), bearish when below. Divergence from price often precedes reversals.
  • ADX (14) — trend strength regardless of direction. <20 range, 20–25 weak trend, 25–50 trend, >50 strong trend.
  • +DI / −DI — +DI > −DI favors bulls; the reverse favors bears. Read alongside ADX.
Momentum Oscillators
  • RSI (14) — <30 oversold, >70 overbought. 40–60 is neutral; trending names can stay extreme.
  • Stochastic %K / %D — <20 oversold, >80 overbought. %K crossing %D is an early momentum signal.
  • Williams %R — inverted scale: <−80 oversold, >−20 overbought.

Oscillators work best in range-bound markets; in strong trends they give premature reversal signals.

Volume & Volatility
  • Bollinger Bands — price at upper band = overbought, lower = oversold. Narrow bands (squeeze) often precede expansion.
  • OBV — cumulative volume; rising OBV confirms uptrend, falling OBV confirms downtrend. Divergence from price is a warning.
  • Vol SMA 20 / Vol ROC — today's volume vs. 20-day average. Positive ROC with price move = conviction.
  • ATR / True Range — average daily $ move; sizing and stop-loss reference.
  • HV 20 / 30 / 60 — realized (historical) volatility. Compare to IV on the options cards: IV > HV = rich premium.

Confluence matters: trend + momentum + volume agreeing carries far more weight than any single indicator. For how these feed the spread scanner score, see the algorithm docs →

Trend Indicators

SMA 20: $47.13
SMA 50: $47.93
SMA 200: —
Current: $47.62
EMA 12: $47.35
EMA 26: $47.44
MACD: -0.0899 | Signal: 0.1228
BEARISH
ADX (14): 22.90
WEAK TREND
+DI: 19.90
−DI: 20.45

Momentum Oscillators

RSI (14): 54.84
NEUTRAL
Stoch %K: 74.48
Stoch %D: 71.08
Williams %R: -18.44

Volume & Volatility

BB Upper: $47.69
BB Lower: $46.58
NEUTRAL
OBV: 10,102,369
Vol SMA 20: 110,123
Vol ROC: -99.34%
ATR: $0.38
True Range: $0.26
HV 20: 5.8%
HV 30: 7.3%
HV 60: 6.1%

Data Summary

Data Points: 187
Last Updated:
Date Range: 2026-01-26T00:00:00 – 2026-10-21T00:00:00
AI Analysis

Click Frenzy-Pro™ for an AI analysis of this ticker.

Analysis includes technical indicators, news sentiment, risk assessment, and specific price levels to watch.

News
All MBBA news →

MBBA Options Activity & IV Rank

Loading options activity...
Spread Scanner GPU
Full Algorithm Docs ↗

Each spread is ranked by a composite score built in three stages. Full documentation →

Stage 1 — Base Score (GPU scanner)

score = P(profit) × (credit / spread_width)
P(profit) from short leg delta (1 − |delta|), penalised above 85%. Credit uses mid-price to handle illiquid chains fairly.

Stage 2 — Skew Adjustment (±25% cap)

RR and BF (30-delta) from the persisted per-symbol skew snapshot — wing strikes picked by real greeks.delta, not a moneyness proxy. Put skew boosts bull puts, penalises bear calls. High butterfly boosts iron condors. Calendars are skew-neutral.

Stage 3 — Technical Overlay (±50% cap, 5 groups)
Group 1 · Directional Bias (±0.25)
  • RSI <40 bullish / >60 bearish
  • MACD crossover + histogram trend
  • Price vs SMA 50 & SMA 200
Group 2 · Momentum (±0.10)
  • Stochastic %K <20 / >80
  • Williams %R <−80 / >−20
Group 3 · Volatility (up to −0.25 / +0.15)
  • Blended ATR + straddle expected-move penalty
  • Bollinger Band signal (+ counter-trend penalty)
  • BB width — vol contraction boost for ICs
Group 4 · IV Regime (±0.15)
  • IV rank ≥ 75 → strong boost for credit spreads
  • IV rank < 25 → penalty (selling cheap vol)
Group 5 · Liquidity (penalty up to −0.10)
  • Min open interest across all legs
  • OI < 100 → −0.10 · OI < 500 → −0.05

score = base_score × skew_multiplier × tech_multiplier
Both multipliers are shown per spread. Beta is informational only — ATR already captures realized vol. Full algorithm documentation →

Enter a ticker to scan for optimal spread opportunities.

Evaluates all bull put, bear call, iron condor, and calendar spread combinations using GPU-accelerated analysis.

Skew (Wing IV − ATM IV)
DTE:
Wing Δ:
Metric:
Wing vs ATM
IV(put wing) − IV(ATM), in vol points

How much the OTM put trades above (or below) the at-the-money strike. Measures the height of the put-side tail relative to ATM — i.e. how expensive crash insurance is on this name.

  • Positive (typical) — wing IV > ATM IV. Standard equity put skew: portfolios bid up crash protection, so OTM puts trade richer than ATM.
  • Near zero or negative (unusual) — wing IV ≤ ATM IV. Flat or inverted put side. Common when there's no fear demand, in tightly mean-reverting names, or right after an earnings catalyst clears.
  • Percentile vs own 3-yr history: high = wings rich (good time to sell wing premium); low = wings cheap (good time to buy protection).
  • Not directional — high or low wings don't predict up or down moves. It's a price tag on tail insurance, not a forecast.
Risk Reversal
IV(call wing) − IV(put wing), equal delta on each side

Which side of the smile is the market paying up for? Measures the tilt of the surface — call skew vs put skew at matched deltas.

  • Negative (typical) — puts richer than calls. Standard equity behavior: hedging demand makes puts carry a premium. Most large-caps sit in the −1 to −5 vol-point range.
  • Strongly negative (< −5 pts) — heavy downside hedging, elevated fear, or an upcoming catalyst (earnings, FDA, macro event). Worth flagging.
  • Positive — calls richer than puts. Unusual for equities; signals bullish momentum, short-squeeze positioning, or takeover/M&A speculation.
  • Near zero — symmetric surface. Market sees roughly equal up/down risk. Rare for large-caps; more common in commodities and FX.
Reading them together

Wing-vs-ATM tells you how expensive the tails are. Risk Reversal tells you which side is favored. Combined:

  • High wing percentile + deeply negative RR → strong put bid; stress or major event priced in. Owning protection costs a premium; selling put premium is dangerous.
  • Low wing percentile + near-zero RR → complacency; insurance cheap and balanced. Good environment to add cheap downside hedges.
  • Positive RR + elevated wings → call-side fear-of-missing-out; common in squeeze setups. Upside calls expensive, downside puts not bid.
14 DTE / 10d —
— pts EXTREME
ATM — / Wing —
30 DTE / 10d —
— pts EXTREME
ATM — / Wing —

Percentile is the rank of today's reading within ~3 years of this symbol's own history. High percentile = wings are rich relative to history; not a directional signal. Skew is read off the chain in real time, not from CBOE SKEW.

Volatility Surface

Enter a ticker to render the implied volatility surface.

Volatility Smile

Enter a ticker to render the implied volatility smile.

IV Rank (7 DTE)
IV Rank (30 DTE)
Straddle Price (30 DTE)
Beta Analysis

Risk Metrics

Beta: 0.1572
Alpha: -8.96%
Correlation: 0.3885
R-Squared: 15.1%
Stock Volatility: 5.3%
Market Volatility: 13.1%

Analysis Details

Benchmark: SPY
Data Points: 187
Period: 252 trading days
Interpretation:
Low volatility - stock moves less than market
Beta & Alpha Over Time

MBBA Institutional Ownership (13F)

Latest filings — 2026-09-30

Institutional managers with $100M+ AUM file Form 13F-HR quarterly, due 45 days after quarter end. Holdings are reported gross at quarter-end market value — they are a snapshot, not a real-time position.

  • Shares — long equity positions in this name, aggregated across share classes.
  • Calls / Puts — notional value of long call / put exposure where this ticker is the underlying.
  • % of Float — holder's reported shares divided by the latest diluted shares outstanding. Sums above 100% indicate large custodian / prime broker positions where the same shares are reported by multiple filers.
  • Custodian badge — filers with more than 5,000 holdings are typically broker-dealers / custodians reporting customer-held shares, not active managers.

Each filer is counted once at its latest 13F-HR filing. New filings are ingested on a weekly cadence.

52 filers2,587,237 shares$127.49M value
# Filer Shares Value % of Total % of Float Period
1 Envestnet Asset Management, Inc. 885,221 $44.06M 34.56% — 2026-06-30
2 PNC Financial Services Group, Inc. Custodian 857,236 $42.66M 33.46% — 2026-06-30
3 MILESTONE ASSET MANAGEMENT, LLC 147,484 $6.92M 5.43% — 2026-09-30
4 Bank of America Corp Custodian 95,288 $4.74M 3.72% — 2026-06-30
5 BlackRock, Inc. Custodian 94,089 $4.68M 3.67% — 2026-06-30
6 Raymond James Financial, Inc. Custodian 88,966 $4.43M 3.47% — 2026-06-30
7 Atria Investments, Inc 53,839 $2.53M 1.98% — 2026-09-30
8 C2P Capital Advisory Group, LLC d.b.a. Prosperity Capital Advisors 53,585 $2.51M 1.97% — 2026-09-30
9 Pettinga Financial Advisors LLC 38,172 $1.79M 1.40% — 2026-09-30
10 WEALTH ENHANCEMENT ADVISORY SERVICES, LLC 29,991 $1.41M 1.11% — 2026-09-30
11 Morgan Stanley Custodian 22,340 $1.11M 0.87% — 2026-06-30
12 MLG Wealth Management DBA Pine Grove Financial Group 23,468 $1.10M 0.86% — 2026-09-30
13 SigFig Wealth Management, LLC 19,987 $937.59K 0.74% — 2026-09-30
14 Citadel Advisors LLC Custodian 18,713 $931.35K 0.73% — 2026-06-30
15 Cassilly Financial Group LLC 17,844 $837.08K 0.66% — 2026-09-30
16 LPL Financial LLC Custodian 13,394 $666.62K 0.52% — 2026-06-30
17 Blue Trust, Inc. 11,329 $531.44K 0.42% — 2026-09-30
18 Royal Bank of Canada Custodian 9,783 $487.00K 0.38% — 2026-06-30
19 Concurrent Investment Advisors, LLC 8,881 $416.58K 0.33% — 2026-09-30
20 Tilson Financial Group, Inc. 8,156 $405.92K 0.32% — 2026-06-30
21 DROMS STRAUSS ADVISORS INC /MO/ /ADV 7,417 $369.14K 0.29% — 2026-06-30
22 COMMONWEALTH EQUITY SERVICES, LLC 7,417 $369.13K 0.29% — 2026-06-30
23 Cresset Asset Management, LLC 7,378 $367.20K 0.29% — 2026-06-30
24 Cobblestone Asset Management LLC 7,601 $356.56K 0.28% — 2026-09-30
25 Farther Finance Advisors, LLC Custodian 7,073 $331.79K 0.26% — 2026-09-30
# Filer Notional Value % of Total Period
# Filer Notional Value % of Total Period
Constituent Performance

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Constituents
Symbol Name Weight % Price 1 Day 1 Week 1 Month