ZTAXvsAGGETF Comparison
VS
X-Square Municipal Income Tax Free ETF (ZTAX) belongs to the Municipal Bonds segment. iShares Core U.S. Aggregate Bond ETF (AGG) is part of the US Aggregate Bonds segment. ZTAX's top 2 sector exposures are Municipal and Non-Corporate. In contrast, AGG's top sector exposures are Sovereign, Finance and Industrials. ZTAX is more expensive with a Total Expense Ratio (TER) of 5.82%, versus 0.03% for AGG. ZTAX is down -2.61% year-to-date (YTD) with +$1M in YTD flows. AGG performs better with -2.11% YTD performance, and +$9.47B in YTD flows. Run a side-by-side ETF comparison of ZTAX and AGG below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
Find out how industry players manage ETF portfolios. Discover our library of Model portfolios
ZTAX vs AGG performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/13/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | ZTAX AGG | -1.99%-0.74% | -5.34%-2.15% | -2.61%-2.11% | -1.06%-1.97% | +12.96%+14.28% | n/a-2.51% |
| Flows | ZTAX AGG | +$590K+$2.19B | -$1M+$3.75B | +$1M+$9.47B | +$1M+$12.44B | +$3M+$47.93B | -+$66.89B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | ZTAX AGG | +6.88%+4.25% | +5.05%+3.85% | +5.49%+4.94% | n/a+5.93% |
| Max drawdown | ZTAX AGG | -6.46%-3.28% | -6.98%-4.64% | -8.75%-4.86% | n/a-17.35% |
| Max drawdown duration | ZTAX AGG | 91d50d | 107d227d | 316d284d | n/a1555d |
Trading data
ZTAX | AGG | |
Last sale 10/15/2026 at 1:30 PM | $23.93 | $95.41 |
| Previous close 10/14/2026 | $23.49 | $94.82 |
| Consolidated volume 10/14/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of September 30, 2026
1-year trailing difference
Create an account to view replication metrics
Join for free
ZTAX
is actively managed and doesn’t replicate an indexZTAX | AGG | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
Advertisement
Main metrics
Last update 10/15/2026 at 1:30 PM
Live
Closed
ZTAX | AGG | |
|---|---|---|
| Last price | $23.93 | $95.41 |
| 1D performance | +1.85% | +0.62% |
| AuM | $5.44 M | $137.73 B |
| E/R | 5.82% | 0.03% |
Characteristics
ZTAX | AGG | |
|---|---|---|
| Management strategy | Active | Passive |
| Provider | X-Square Capital | iShares |
| Benchmark | - | Bloomberg US Aggregate Bond Index |
| N° of holdings | 13 | 10222 |
| Asset class | - | Bonds |
| Trailing 12m distribution yield | Join | Join |
| Inception date | May 19, 2023 | September 22, 2003 |
| ESG | No | No |
Advertisement
Exposure
Countries
ZTAX
USA
83.13%
Other
16.87%
AGG
USA
76.71%
Other
23.29%
Sectors
ZTAX
Municipal
82.8%
Other
17.2%
AGG
Sovereign
47.19%
Finance
9.95%
Industrials
7.05%
Other
35.81%
Advertisement
Diversification
ZTAX
Total weight of top 15 holdings out of 15
99.39%
AGG
Total weight of top 15 holdings out of 15
8.43%
Top 15 holdings
Data as of August 31, 2026
ZTAX
Puerto Rico Sales Tax Financing Corp., 5% 1jul2058, USD
19.11%
Puerto Rico Sales Tax Financing Corp., 4.784% 1jul2058, USD
16.27%
Puerto Rico Sales Tax Financing Corp., 4.329% 1jul2040, USD
8.67%
Matching Fund Special Purpose Securitization Corp., 5% 1oct2039, USD (2022A)
8.55%
Puerto Rico, 4% 1jul2037, USD
8.04%
Puerto Rico, 5.75% 1jul2031, USD
5.70%
Puerto Rico Aqueduct and Sewer Authority, 5% 1jul2047, USD (2020A)
5.54%
US745160UD15
5.14%
US745160TP63
5.08%
US745160TT85
4.63%
Puerto Rico, 4% 1jul2035, USD
4.29%
Puerto Rico, 5.625% 1jul2027, USD
3.57%
Puerto Rico, 4% 1jul2041, USD
2.20%
US40065NCQ88
1.74%
Puerto Rico Sales Tax Financing Corp., 4.75% 1jul2053, USD
0.86%
AGG
BlackRock Cash Funds - Institutional
3.01%
USA, Notes 4.625% 15feb2035, USD (B-2035)
0.41%
USA, Notes 4.25% 15nov2034, USD (F-2034)
0.40%
USA, Notes 4.375% 15may2034, USD (C-2034)
0.40%
USA, Notes 4% 28feb2030, USD (H-2030)
0.40%
USA, Notes 4.125% 15feb2036, USD (B-2036)
0.39%
USA, Notes 3.875% 15aug2034, USD (E-2034)
0.39%
USA, Notes 4.25% 15may2035, USD (C-2035)
0.39%
USA, Notes 4.5% 15nov2033, USD (F-2033)
0.39%
USA, Notes 4.25% 15aug2035, USD (E-2035)
0.38%
USA, Notes 3.875% 15jul2028, USD (AQ-2028)
0.38%
USA, Notes 4% 15nov2035, USD (F-2035)
0.38%
USA, Notes 4% 15feb2034, USD (B-2034)
0.37%
USA, Notes 4.375% 15may2036, USD (C-2036)
0.37%
USA, Notes 3.5% 15oct2028, USD (AT-2028)
0.37%
Frequently asked questions about ZTAX and AGG
How have the ZTAX and AGG ETFs performed in 2026?
As of October 13, 2026, ZTAX is down -2.61% year-to-date (YTD), while AGG has lost -2.11%. That puts AGG better performer ahead so far this year.
Which ETF is attracting more investor money: ZTAX or AGG?
Year-to-date, the ZTAX ETF saw +$1M in flows, compared to +$9.47B for AGG.
Which ETF is more volatile: ZTAX or AGG?
Over the past year, ZTAX had a volatility of 5.05%, while AGG experienced 3.85%.
Which ETF is bigger: ZTAX or AGG?
As of October 13, 2026, ZTAX holds $5.44 M in assets under management (AUM), while AGG manages $137.73 B.
What sectors do the ZTAX and AGG ETFs invest in?
ZTAX leans toward sectors like Municipal. Meanwhile, AGG focuses on Sovereign, Finance and Industrials.
What are the top holdings of the ZTAX ETF and AGG ETF?
ZTAX top holdings include Puerto Rico Sales Tax Financing Corp., 5% 1jul2058, USD, Puerto Rico Sales Tax Financing Corp., 4.784% 1jul2058, USD and Puerto Rico Sales Tax Financing Corp., 4.329% 1jul2040, USD. AGG holds in its top three: BlackRock Cash Funds - Institutional, USA, Notes 4.625% 15feb2035, USD (B-2035) and USA, Notes 4.25% 15nov2034, USD (F-2034).
Which ETF is more diversified: ZTAX or AGG?
ZTAX holds 16 securities with 99.39% of its assets in the top 15. AGG has 13256 securities and a top 15 weight of 8.43%.
Advertisement
Latest news about ZTAX & AGG
Money Market Fund Boom: Are You Missing Out on Market Gains?
June 27, 2024
AGG
The Top Three Moments That Moved ETF Markets in 2023
January 3, 2024
AGG
Higher For Longer, or Just a Bit? Navigating the New Interest Rate Environment with Floating-Rate Treasury ETFs
December 26, 2023
AGG
Fixed Income 101: The Ins and Outs of U.S. Aggregate Bond ETFs
November 30, 2023
AGG
Advertisement
Bright Side of Bond Drawdowns
October 27, 2023
AGG
Advertisement
