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Tuesday, October 27, 2026 · Today’s edition, 6:30 a.m. ETTue, Oct 27 · 6:30 a.m. editionSign inMy Desk 0EditionsSign in
MUBISharesINDEX

iShares National Muni Bond ETF

$103.82+0.38% vs prior close
10010952-WK

Price through Oct 26, 2026 · Flows through Oct 23, 2026. Figures use the latest available records, not a live quote. Fund details retrieved Oct 26, 2026. Holdings snapshot retrieved Oct 26, 2026.

The fund will invest at least 80% of its assets in the component securities of the underlying index and it will invest at least 90% of its assets in fixed income securities of the types included in the underlying index that BFA believes will help the fund track the underlying index. The underlying index includes municipal bonds, the interest of which is exempt from Federal income taxes and not subject to alternative minimum tax.

MUB price

Source: Market tape, daily closes; price return, distributions not reinvested
Table
DateMUB close
Jul 27, 2026$105.80
Jul 28, 2026$106.00
Jul 29, 2026$105.77
Jul 30, 2026$105.76
Jul 31, 2026$105.64
Aug 3, 2026$105.45
Aug 4, 2026$105.76
Aug 5, 2026$105.82
Aug 6, 2026$105.66
Aug 7, 2026$105.94
Aug 10, 2026$105.85
Aug 11, 2026$105.93
Aug 12, 2026$105.98
Aug 13, 2026$106.16
Aug 14, 2026$105.86
Aug 17, 2026$105.56
Aug 18, 2026$105.37
Aug 19, 2026$105.68
Aug 20, 2026$105.47
Aug 21, 2026$105.34
Aug 24, 2026$105.41
Aug 25, 2026$105.58
Aug 26, 2026$105.45
Aug 27, 2026$105.39
Aug 28, 2026$105.22
Aug 31, 2026$105.10
Sep 1, 2026$104.33
Sep 2, 2026$104.22
Sep 3, 2026$104.00
Sep 4, 2026$104.03
Sep 8, 2026$104.02
Sep 9, 2026$103.48
Sep 10, 2026$102.72
Sep 11, 2026$103.17
Sep 14, 2026$103.11
Sep 15, 2026$102.87
Sep 16, 2026$102.82
Sep 17, 2026$103.16
Sep 18, 2026$102.88
Sep 21, 2026$102.86
Sep 22, 2026$102.75
Sep 23, 2026$102.04
Sep 24, 2026$101.59
Sep 25, 2026$101.17
Sep 28, 2026$100.61
Sep 29, 2026$100.28
Sep 30, 2026$101.10
Oct 1, 2026$101.34
Oct 2, 2026$100.96
Oct 5, 2026$101.12
Oct 6, 2026$101.02
Oct 7, 2026$100.52
Oct 8, 2026$100.74
Oct 9, 2026$101.08
Oct 12, 2026$101.16
Oct 13, 2026$101.77
Oct 14, 2026$101.65
Oct 15, 2026$102.48
Oct 16, 2026$102.35
Oct 19, 2026$102.34
Oct 20, 2026$102.35
Oct 21, 2026$102.45
Oct 22, 2026$103.24
Oct 23, 2026$103.43
Oct 26, 2026$103.82

Weekly net flows, 3M

Net inflow over the range: +$9.7B

  • Inflow / above zero
  • Outflow / below zero
Jul 20Jul 27Aug 3Aug 10Aug 17Aug 24Aug 31Sep 7Sep 14Sep 21+$2.4BSep 28Oct 5Oct 12+$2.3BOct 19Jul 20Aug 3Aug 17Aug 31Sep 14+$2.4BSep 28+$2.3BOct 19Jul 20Aug 17Sep 14+$2.4B+$2.3BOct 19
Source: Daily creation and redemption records
Show as table
LabelValue ($)
Jul 20−$252M
Jul 27$498.2M
Aug 3$349.8M
Aug 10−$10.6M
Aug 17−$54.3M
Aug 24$435.6K
Aug 31$250.2M
Sep 7−$314.8M
Sep 14$1.4B
Sep 21$623.2M
Sep 28$2.4B
Oct 5$1B
Oct 12$1.5B
Oct 19$2.3B
The desk’s read

Money keeps arriving — +$7.2B of net inflows over the past month, about 13.3% of the fund's asset base, while the price has returned -3.1% so far this year. At 0.050% a year it is not the cheapest way in — IVV has a reported fee of 0.03%.

COMPOSED FROM THE FUND’S OWN DAILY RECORDS · UPDATED WITH EACH REFRESH

$53.9Bassets under management
0.050%expense ratio · $5 per $10,000 a year
+$7.2Bnet flow, trailing month
18.7Mavg daily volume, 30 days
5722holdings · US-domiciled
2007listed September 7, 2007 · beta 0.10
The book at a glance
—0.2%—0.2%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%—0.1%

CELL SIZE IS PORTFOLIO WEIGHT · COLOR IS THE CHANGE IN THE LATEST AVAILABLE SNAPSHOT · TOP 40 POSITIONS

Holdings
#HoldingWeightPriceDay52-wk
1—ATLANTA GA WTR & WASTE WTR REV0.19%———
2—NEW YORK ST TWY AUTH ST PERS I0.16%———
3—NEW YORK ST DORM AUTH ST PERS0.13%———
4—HOUSTON TEX HIGHER ED FIN CORP0.13%———
5—NORTHWEST TEX INDPT SCH DIST0.13%———
6—OHIO ST UNIV GEN RCPTS0.13%———
7—NEW JERSEY ST0.13%———
8—WASHINGTON ST0.13%———
9—CALIFORNIA ST0.13%———
10—CHICAGO ILL TRAN AUTH SALES TA0.12%———
11—EAST CNTY ADVANCED WTR PURIFIC EAWWTR 09/26 FIXED 3.1250.11%———
12—NEW JERSEY ST EDL FACS AUTH RE0.11%———
13—WASHOE CNTY NEV SCH DIST0.11%———
14—ILLINOIS ST0.11%———
15—MASSACHUSETTS ST0.11%———

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Sector weights

  • State Tax-Backed29.73%
  • Local Tax-Backed18.39%
  • Utility17.14%
  • Transportation11%
  • School Districts9.71%
  • Education8.01%
  • Cash and/or Derivatives2.66%
  • Prerefund/Escrow0.96%
Source: Portfolio composition, latest disclosure
Show as table
ItemValue (%)
State Tax-Backed29.73%
Local Tax-Backed18.39%
Utility17.14%
Transportation11%
School Districts9.71%
Education8.01%
Cash and/or Derivatives2.66%
Prerefund/Escrow0.96%
Performance
1 week+1.4%
1 month+2.6%
3 months-1.6%
6 months-3.3%
YTD-3.1%
1 year—
3 years—

PRICE RETURN, DISTRIBUTIONS NOT REINVESTED

Net flows
1 week+$1.6B
1 month+$7.2B
3 months+$9.9B
YTD+$13.8B
1 year+$15B

CREATION/REDEMPTION DOLLARS, DAILY RECORDS

Monthly net flows

  • Inflow / above zero
  • Outflow / below zero
+$1.3BOct+$524.3MNov+$96.3MDec+$658.6MJan+$304.4MFeb+$441MMar+$766.5MApr+$607.3MMay+$1.6BJul+$345.2MAug+$3.1BSep+$6BOctOctNovDecJanFebMarAprMayJulAugSep+$6BOctOctDecFebAprJul+$6BOct
Source: Daily creation/redemption records, trailing twelve months
Show as table
LabelValue ($)
Oct$1.3B
Nov$524.3M
Dec$96.3M
Jan$658.6M
Feb$304.4M
Mar$441M
Apr$766.5M
May$607.3M
Jul$1.6B
Aug$345.2M
Sep$3.1B
Oct$6B
The risk read
6%realized volatility, 30 days (annualized)
4%realized volatility, 1 year
-7.9%deepest fall from a peak, 1 year
-4.7%latest close versus that peak

The top holding is 0.2% of the book; the top ten carry 1%. Spread across 250+ names, it behaves like roughly 225 equally-weighted positions.

VOLATILITY & DRAWDOWN FROM THE DAILY TAPE · CONCENTRATION FROM THE LATEST DISCLOSED BOOK

Options tape
101calls · latest snapshot
249puts · latest snapshot
2.47put/call ratio
9.7Mshares traded
The case against MUB

Due diligence cuts both ways. These funds sit on the same shelf and beat MUB on at least one dimension that matters — the fee, the asset base, or where the money is going.

FundFeeAssetsFlow, 1MThe case
STIP iShares 0-5 Year TIPS Bond ETF0.03%$16.4B+$489M-2bp on fee · +$489M in over the monthHead-to-head
IJH iShares Core S&P Mid-Cap ETF0.05%$123.5B+$2.3B2× the assets · +$2.3B in over the monthHead-to-head
SPTS State Street SPDR Portfolio Short Term Treasury ETF0.03%$7.1B+$1.4B-2bp on fee · +$1.4B in over the monthHead-to-head
IGSB iShares 1-5 Year Investment Grade Corporate Bond ETF0.04%$23.7B+$51M-1bp on fee · +$51M in over the monthHead-to-head
IGIB iShares 5-10 Year Investment Grade Corporate Bond ETF0.04%$18.6B+$412M-1bp on fee · +$412M in over the monthHead-to-head
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