ETF comparisons › Bonds
⚖️ ETF COMPARISON

VAF vs IAF: which is better for you?

VAF (Vanguard Australian Fixed Interest Index ETF) and IAF (iShares Core Composite Bond ETF) compared: exact overlap, fees, returns, money flowing in, trend, and which suits who.

· Updated 5 November 2026
THE SHORT ANSWER

VAF and IAF overlap by about 100%: owning both mostly doubles up. They charge the same fee (0.10% a year). VAF is the bigger fund ($3.9b vs $3.7b). Close to the same investment: both track the Bloomberg AusBond Composite 0+ Yr Index of Australian government and investment-grade bonds, for the same fee.

📅 As at 30 September 2026: fees, size, flows and returns from the TMX Australia funds report; overlap from published holdings as at 30 September 2026.

VAF

Vanguard Australian Fixed Interest Index ETF

VAF invests in Australian government, semi-government and investment-grade corporate bonds.

IAF

iShares Core Composite Bond ETF

IAF invests in Australian government, semi-government and investment-grade corporate bonds.

VAF vs IAF side by side

Green marks the cheaper, bigger or better-performing fund on each line. Past returns are not a reliable guide to the future.

VAFIAF
IssuerVanguardiShares
IndexBloomberg AusBond Composite 0+ Yr IndexBloomberg AusBond Composite 0+ Yr Index
Fee (a year)0.10%0.10%
Size$3.9b$3.7b
Net money in, September+$66m−$15m
1-year return-0.4%-0.4%
5-year return-1%-1%
Listed20122012
Top 10 holdings100% of fund100% of fund
Trend nowBaseBase

How much do VAF and IAF overlap?

About 100% of their holdings are the same, by weight: high overlap, so owning both mostly doubles up.

Only in VAF

  1. No holdings above 0.5%: the differences are all small positions.

Only in IAF

  1. No holdings above 0.5%: the differences are all small positions.

Sectors and countries

VAFIAF

Sectors

Bonds & cash
100%
100%

Countries

Bonds
100%
100%

Trend: base, uptrend or downtrend?

Past year of prices, shaded by trend stage. The dashed line is the 200-day exponential average. As at 4 November 2026. How base and trend works.

VAF BaseBase since October 2026Oct 25Now
IAF BaseBase since October 2026Oct 25Now

VAF or IAF: which suits who?

Choose VAF if…You prefer Vanguard. There is little else between them.
Choose IAF if…You prefer iShares. There is little else between them.
Should you own both?Usually there’s little point. With 100% overlap, owning both mostly doubles up on the same companies. Pick one.

Where either fits depends on the rest of your portfolio: whether it’s your core or a satellite. See core and satellite investing.

Check VAF and IAF against your own ETFs
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VAF vs IAF FAQs

Is VAF or IAF better?

Neither is better for everyone. Close to the same investment: both track the Bloomberg AusBond Composite 0+ Yr Index of Australian government and investment-grade bonds, for the same fee. Choose VAF if you prefer Vanguard. There is little else between them. Choose IAF if you prefer iShares. There is little else between them.

What is the difference between VAF and IAF?

VAF and IAF overlap by about 100%: owning both mostly doubles up. They charge the same fee (0.10% a year). VAF is the bigger fund ($3.9b vs $3.7b). Close to the same investment: both track the Bloomberg AusBond Composite 0+ Yr Index of Australian government and investment-grade bonds, for the same fee.

Should I own both VAF and IAF?

Usually there’s little point. With 100% overlap, owning both mostly doubles up on the same companies. Pick one.

Which is cheaper, VAF or IAF?

They charge the same fee (0.10% a year). Fees are taken from the fund’s returns, not charged separately.

Fees, size, flows and returns: TMX Australia Funds Report to 30 September 2026; returns are total returns and the 5-year figure is cumulative. Overlap, sectors and countries are based on each fund’s published holdings, scaled to the part of each fund we can see. Trend stages are a technical indicator based on 10, 20, 50 and 200-day exponential moving averages; they describe the past, not the future. General information only, not a recommendation to buy or sell VAF or IAF. Consider the PDS and TMD, and your own circumstances, before investing.

Knowing what to buy is one half. Knowing when is the other.

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