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ZCBBvsPMMFETF Comparison

ETF 1
ZCBB

Global X Zero Coupon Bond 2031 ETF

This fund is part of
US Government Bonds
+0.07%
VS
ETF 2
PMMF

iShares Prime Money Market ETF

This fund is part of
Money Market Bonds
+0.03%

Global X Zero Coupon Bond 2031 ETF (ZCBB) and iShares Prime Money Market ETF (PMMF) have similar underlying exposures to countries and sectors. In contrast, PMMF's top sector exposures are Government Agencies and Finance. ZCBB is less expensive with a Total Expense Ratio (TER) of 0.07%, versus 0.2% for PMMF. ZCBB is down -2.2% year-to-date (YTD) with +$994K in YTD flows. PMMF performs better with 2.9% YTD performance, and +$366M in YTD flows. Run a side-by-side ETF comparison of ZCBB and PMMF below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.

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ZCBB vs PMMF performance and flow charts

Performance

-0.8-0.6-0.4-0.20.00.20.4%Sep 16Sep 23Sep 30Oct 7Oct 14

Cumulative Flows

0 M10 M20 M30 M40 M50 MSep 16Sep 23Sep 30Oct 7Oct 14

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Historic performance and flows
Data as of 10/16/2026
1M3MYTD1Y3Y5Y
Perf.
ZCBB
PMMF
+0.26%+0.32%
-1.79%+0.93%
-2.20%+2.90%
n/a+3.75%
n/an/a
n/an/a
Flows
ZCBB
PMMF
-+$50M
-+$137M
+$994K+$366M
-+$425M
--
--
Volatility and drawdown
3M1Y3Y5Y
Volatility
ZCBB
PMMF
+3.50%+0.14%
n/a+0.14%
n/an/a
n/an/a
Max drawdown
ZCBB
PMMF
-2.97%n/a
n/an/a
n/an/a
n/an/a
Max drawdown duration
ZCBB
PMMF
52dn/a
n/an/a
n/an/a
n/an/a
Trading data

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ZCBB
PMMF
Last sale
10/16/2026 at 1:30 PM
$47.61
Previous close
10/16/2026
$47.55
Consolidated volume
10/16/2026
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

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PMMF
is actively managed and doesn’t replicate an index

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ZCBB
PMMF
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst
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Main metrics
Last update 10/16/2026 at 1:30 PM
Live
Closed
ZCBB
PMMF
Last price
$47.61
–
1D performance
+0.13%
–
AuM$0.95 M$787.14 M
E/R0.07%0.2%
Characteristics
ZCBB
PMMF
Management strategyPassiveActive
ProviderGlobal XiShares
BenchmarkFTSE Zero Coupon U.S. Treasury STRIPS 2031 Maturity Index-
N° of holdings13
Asset class--
Trailing 12m distribution yield
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Inception dateJanuary 7, 2026February 4, 2025
ESGNoNo
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Exposure

Countries

ZCBB
Other
100%
PMMF
Data will be available soon

Sectors

ZCBB
Other
100%
PMMF
Data will be available soon
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Diversification

ZCBB

Total weight of top 1 holdings out of 1

100%
PMMF
Data will be available soon

Top 15 holdings

Data as of August 31, 2026
ZCBB
US37966B2088
100.00%
PMMF
Data will be available soon
Frequently asked questions about ZCBB and PMMF

How have the ZCBB and PMMF ETFs performed in 2026?

As of October 16, 2026, ZCBB is down -2.2% year-to-date (YTD), while PMMF has returned 2.9%. That puts PMMF better performer ahead so far this year.

Which ETF is attracting more investor money: ZCBB or PMMF?

Year-to-date, the ZCBB ETF saw +$994K in flows, compared to +$366M for PMMF.

Which ETF is bigger: ZCBB or PMMF?

As of October 16, 2026, ZCBB holds $0.95 M in assets under management (AUM), while PMMF manages $787.14 M.

What are the top holdings of the ZCBB ETF and PMMF ETF?

ZCBB top holdings include US37966B2088. PMMF holds in its top three: US80414PJ310, US46223WAF05 and US93930NBL29.

Which ETF is more diversified: ZCBB or PMMF?

ZCBB has 1 securities. PMMF has 115 securities and a top 15 weight of 6.37%.

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