Australian High Interest Cash ETF (AAA) — Review & Analysis

AAA is the largest cash ETF on the ASX, with $5.0 billion in assets as at May 2026 — making up roughly 1.4% of the entire $358 billion Australian ETF market and 63% of all money held in cash ETFs in Australia. Betashares launched AAA in March 2012 and effectively created the Australian cash ETF category — every product launched since has positioned itself relative to AAA. The fund holds at-call deposits with the four major Australian banks (CBA, NAB, ANZ, Westpac) and pays the wholesale interest rate to unitholders monthly. The management fee is 0.18% per annum, or $18 per year per $10,000 invested. AAA is held in more Australian SMSFs than any other cash product — listed or unlisted — making it the default cash holding for self-managed super.

To compare AAA side-by-side with every other ETF on the ASX, see the full ETF directory.

AAA's portfolio is unusually simple: 100% at-call deposits with the big-4 Australian banks. There are no bonds, no corporate credit, no fixed-rate instruments. When you buy a unit of AAA, you're pooling your money with other holders into wholesale "negotiable" deposit accounts that earn an institutional cash rate — higher than what a retail saver earns at the same bank, but with the same underlying credit risk. As at May 2026, the trailing 12-month total return is +3.9%, the 3-year return is +12.6% and the 5-year return is +15.6% — modest by equity standards but with capital preservation as the goal, not capital growth.

AAA pays distributions monthly, with ex-distribution dates on the 1st business day of each month and payment typically arriving in your broker account around the 10-11th of the month. As at May 2026, the running yield is approximately 4.30% per annum — slightly below the RBA cash rate of 4.35%, with the gap reflecting the 0.18% management fee. Yields move with the RBA: when the RBA cuts, AAA's yield falls within weeks; when the RBA hikes, AAA's yield rises within weeks. This is the fundamental design — AAA gives you the wholesale cash rate with daily liquidity, not a fixed-rate lock-in. For longer-dated bond exposure, see VAF or IAF.

AAA is the simplest, largest, and most liquid cash ETF on the ASX. It's an excellent home for emergency funds, savings goals 1-3 years out, retirement cash buffers, and any cash position where you want bank-deposit safety with daily access. A $10,000 investment in AAA at its March 2012 launch (with all distributions reinvested) would be worth roughly $15,700 as at May 2026 — an annualised return of about 3.3% per year over the 14-year period. Don't expect AAA to grow wealth — it preserves it while earning a respectable institutional cash rate. For a deeper breakdown across all six cash ETFs, see Best Cash ETFs in Australia 2026.