Expense Ratio
The annual fee the ETF charges, deducted daily from NAV. A 0.05% ratio costs you $5/year per $10,000 invested, over 30 years that's the difference between a great fund and a mediocre one.
Learn more →iShares Short-Term National Muni Bond ETFSUB$106.15+$0.01(+0.01%)as of 2026-07-31
Expense0.07%YTD-0.52%
BlackRock (iShares)Fixed Income
NAV
$106.15
Net Assets
-
Expense Ratio
0.07%
YTD
-0.52%
1Y
-0.50%
3Y CAGR
+0.76%
5Y CAGR
-0.34%
The fund will invest at least 80% of its assets in the component securities of the underlying index, and the fund will invest at least 90% of its assets in fixed income securities of the types included in the underlying index that the advisor 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.
Price History1,320 daily observations
Price History▼ 0.54% over 1Y
Monthly Returns
Historically, Nov has averaged the highest return (+0.8%); Sep the lowest (-0.5%).
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | +0.6%Neutral MonthJan 2026: +0.57% | +0.1%Neutral MonthFeb 2026: +0.12% | -0.9%Neutral MonthMar 2026: -0.87% | +0.1%Neutral MonthApr 2026: +0.08% | -0.3%Neutral MonthMay 2026: -0.28% | -0.0%Neutral MonthJun 2026: -0.04% | -0.1%Neutral MonthJul 2026: -0.08% | — | — | — | — | — |
| 2025 | +0.4%Neutral MonthJan 2025: +0.45% | +0.2%Neutral MonthFeb 2025: +0.16% | -0.5%Neutral MonthMar 2025: -0.49% | -0.0%Neutral MonthApr 2025: -0.04% | +0.4%Neutral MonthMay 2025: +0.37% | +0.4%Neutral MonthJun 2025: +0.37% | +0.4%Neutral MonthJul 2025: +0.37% | +0.3%Neutral MonthAug 2025: +0.25% | -0.2%Neutral MonthSep 2025: -0.21% | -0.2%Neutral MonthOct 2025: -0.22% | +0.1%Neutral MonthNov 2025: +0.14% | +0.0%Neutral MonthDec 2025: +0.01% |
| 2024 | -0.2%Neutral MonthJan 2024: -0.20% | -0.1%Neutral MonthFeb 2024: -0.13% | -0.3%Neutral MonthMar 2024: -0.33% | -0.2%Neutral MonthApr 2024: -0.18% | -0.4%Neutral MonthMay 2024: -0.36% | +0.4%Neutral MonthJun 2024: +0.37% | +0.7%Neutral MonthJul 2024: +0.70% | +0.5%Neutral MonthAug 2024: +0.52% | +0.3%Neutral MonthSep 2024: +0.34% | -0.6%Neutral MonthOct 2024: -0.64% | +0.3%Neutral MonthNov 2024: +0.28% | -0.3%Neutral MonthDec 2024: -0.31% |
| 2023 | +0.7%Neutral MonthJan 2023: +0.67% | -1.4%Neutral MonthFeb 2023: -1.37% | +1.1%Neutral MonthMar 2023: +1.11% | -0.3%Neutral MonthApr 2023: -0.32% | -0.7%Neutral MonthMay 2023: -0.67% | +0.4%Neutral MonthJun 2023: +0.39% | -0.1%Neutral MonthJul 2023: -0.08% | -0.2%Neutral MonthAug 2023: -0.17% | -0.9%Neutral MonthSep 2023: -0.89% | +0.2%Neutral MonthOct 2023: +0.21% | +1.8%Neutral MonthNov 2023: +1.77% | +0.5%Neutral MonthDec 2023: +0.51% |
| 2022 | -1.2%Neutral MonthJan 2022: -1.25% | -0.2%Neutral MonthFeb 2022: -0.23% | -1.1%Neutral MonthMar 2022: -1.12% | -0.9%Neutral MonthApr 2022: -0.86% | +0.9%Neutral MonthMay 2022: +0.94% | +0.0%Neutral MonthJun 2022: +0.00% | +0.7%Neutral MonthJul 2022: +0.68% | -1.2%Neutral MonthAug 2022: -1.19% | -1.4%Neutral MonthSep 2022: -1.41% | -0.1%Neutral MonthOct 2022: -0.08% | +1.8%Neutral MonthNov 2022: +1.75% | -0.1%Neutral MonthDec 2022: -0.11% |
| 2021 | — | — | — | — | -0.1%Neutral MonthMay 2021: -0.11% | +0.0%Neutral MonthJun 2021: +0.03% | +0.2%Neutral MonthJul 2021: +0.17% | -0.1%Neutral MonthAug 2021: -0.10% | -0.3%Neutral MonthSep 2021: -0.30% | -0.2%Neutral MonthOct 2021: -0.17% | +0.0%Neutral MonthNov 2021: +0.00% | -0.0%Neutral MonthDec 2021: -0.02% |
| Avg±SD |
Each cell is the percentage change in closing price from the end of the prior month to the end of this month. The bottom row shows the average return for that calendar month across the selected years, plus or minus one standard deviation — the range that historically contained roughly two-thirds of outcomes. Past monthly patterns are not a forecast of future returns.
Seasonal Tendency
This aggregates every month by calendar position — all Januaries together, all Februaries together, and so on — to show whether a given month has leaned positive or negative historically. ‘Simple’ counts each month as +1 or −1. ‘Weighted’ gives larger moves more influence: +2 above +10%, −2 below −10%. With only 6 years of history for this asset, each month’s score reflects a small number of observations — read it as a historical tendency, not a reliable seasonal pattern.
Historical Trend
This tracks a running tally across the asset’s full price history: each month adds or subtracts based on whether it was positive or negative. A rising line means more positive months than negative so far; a flattening or falling line means recent months have leaned negative. This measures historical month-to-month consistency, not expected future performance.
Year-to-Date ROI
Latest: 0.995x (2026)
Year-to-date return is calculated by dividing each day’s closing price by the price on January 1st of that year (or the asset’s first available price if it began trading mid-year). The custom average line shows the mean YTD return at each calendar day across the selected years. The standard deviation band shows the range within which returns have historically fallen — at 1 SD, roughly two-thirds of years; at 2 SD, roughly 95%. Past year-to-date patterns do not predict future returns. The average and standard deviation band are computed from the year set chosen in “Average from”, which is independent of which year lines are displayed. The current in-progress year is excluded from these calculations, since a partial year is not comparable to complete ones. Election-cycle groupings follow the US presidential calendar and are offered only for US and crypto assets.
Returns PerformanceTrailing total returns
| YTD | 1Y | 3Y CAGR | 5Y CAGR |
|---|---|---|---|
| -0.52% | -0.50% | +0.76% | -0.34% |
Expense Ratio
Net (after waivers)0.07%
Gross (before waivers)0.07%
Net expense ratio reflects fee waivers and reimbursements actually paid by investors. Gross is the full management cost.
AI Summary
us-etfRule-based from financial data. Not advice.
Sector Allocation1 sector
Fixed Income / Cash99.85%
Top 10 Holdings ConcentrationWhat share of the fund the largest 10 positions occupy
Top 10 Weight
2.7%
Total Holdings
744
Verdict
broadly diversified
Top Holdings200 of 744 loaded
💡Reading the Holdings Table
The Weight column shows how much of the ETF's assets sit in each constituent. The Allocation bar scales each weight to the largest position so you can see relative concentration at a glance, and the Cumul. column tracks the running total, a fast read on how top-heavy this ETF is. The top 10 holdings account for 2.7% of assets. Click any constituent name to open its US stock detail page.
📖 Learn: Diversification & Asset Allocation →| # | Holding | Sector | Allocation | Weight | Cumul. |
|---|---|---|---|---|---|
| 1 | NEW JERSEY ECONOMIC DEV AUTH RNEW JERSEY ECONOMIC DEV AUTH R | Fixed Income / Cash | 0.37% | 0.4% | |
| 2 | KING CNTY WASH SWR REVKING CNTY WASH SWR REV | Fixed Income / Cash | 0.35% | 0.7% | |
| 3 | CALIFORNIA STCALIFORNIA ST | Fixed Income / Cash | 0.28% | 1.0% | |
| 4 | NEW YORK ST URBAN DEV CORP REVNEW YORK ST URBAN DEV CORP REV | Fixed Income / Cash | 0.26% | 1.3% | |
| 5 | UNIVERSITY CALIF REVSUNIVERSITY CALIF REVS | Fixed Income / Cash | 0.26% | 1.5% | |
| 6 | NEW JERSEY ST TPK AUTH TPK REVNEW JERSEY ST TPK AUTH TPK REV | Fixed Income / Cash | 0.25% | 1.8% | |
| 7 | PENNSYLVANIA ST TPK COMMN TPKPENNSYLVANIA ST TPK COMMN TPK | Fixed Income / Cash | 0.25% | 2.0% | |
| 8 | SAN ANTONIO TEX WTR REVSAN ANTONIO TEX WTR REV | Fixed Income / Cash | 0.23% | 2.3% | |
| 9 | DISTRICT COLUMBIA WTR & SWR AUDISTRICT COLUMBIA WTR & SWR AU | Fixed Income / Cash | 0.23% | 2.5% | |
| 10 | CONNECTICUT ST SPL TAX OBLIG RCONNECTICUT ST SPL TAX OBLIG R | Fixed Income / Cash | 0.22% | 2.7% | |
| 11 | NEW JERSEY STNEW JERSEY ST | Fixed Income / Cash | 0.22% | 2.9% | |
| 12 | NEW YORK N Y CITY TRANSITIONALNEW YORK N Y CITY TRANSITIONAL | Fixed Income / Cash | 0.22% | 3.1% | |
| 13 | NEW YORK N YNEW YORK N Y | Fixed Income / Cash | 0.21% | 3.4% | |
| 14 | MASSACHUSETTS STMASSACHUSETTS ST | Fixed Income / Cash | 0.21% | 3.6% | |
| 15 | HOUSTON TEX UTIL SYS REVHOUSTON TEX UTIL SYS REV | Fixed Income / Cash | 0.21% | 3.8% | |
| 16 | OHIO ST WTR DEV AUTH REVOHIO ST WTR DEV AUTH REV | Fixed Income / Cash | 0.21% | 4.0% | |
| 17 | CONNECTICUT ST HEALTH & EDL FACONNECTICUT ST HEALTH & EDL FA | Fixed Income / Cash | 0.21% | 4.2% | |
| 18 | PENNSYLVANIA STPENNSYLVANIA ST | Fixed Income / Cash | 0.21% | 4.4% | |
| 19 | GEORGIA STGEORGIA ST | Fixed Income / Cash | 0.20% | 4.6% | |
| 20 | KENTUCKY STATE PROPERTY AND BUILDIKENTUCKY STATE PROPERTY AND BUILDI | Fixed Income / Cash | 0.20% | 4.8% | |
| Total (top 20) | 4.8% | ||||
Holdings Overlap with Your Portfolio
Checking for overlaps...
Investment CalculatorSee what investing in SUB might be worth
$
You invest
$10,000
Estimated gain
$-340
Final value
$9,660
Projections assume returns compound at the chosen CAGR consistently for 10 years, actual returns will vary year-to-year. Past performance is not a guarantee of future results.
Key Concepts to UnderstandFive things that drive ETF performance more than anything else
Net Assets (AUM)
Total money the ETF manages. Larger AUM usually means tighter bid-ask spreads and lower closure risk. ETFs under $50M are sometimes liquidated by the issuer.
Learn more →NAV
Net Asset Value, the per-share value of everything the ETF owns minus what it owes, calculated end-of-day. The trading price can drift slightly above (premium) or below (discount) NAV during the day.
Learn more →Tracking Error
How closely the ETF's returns match its benchmark. Index ETFs aim for near-zero tracking error; high tracking error in an index fund usually signals fees, sampling, or poor management.
Learn more →Total Return
Capital gain + reinvested dividends. The headline price chart only shows the price part, total return is what you actually pocket, and is the only fair way to compare ETFs across asset classes.
Learn more →Similar ETFs
About This ETF
Provider
BlackRock (iShares)
Asset Class
Fixed Income
Top Sector
Fixed Income / Cash (99.8%)
The fund will invest at least 80% of its assets in the component securities of the underlying index, and the fund will invest at least 90% of its assets in fixed income securities of the types included in the underlying index that the advisor 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.
US ETF data is for educational purposes only. Past performance does not guarantee future returns. Exchange-traded funds carry market risk and may lose value. Read the prospectus and consult a registered investment advisor before investing. Equiscale does not provide investment advice.