PMMF vs VOO
iShares Prime Money Market ETF compared with Vanguard S&P 500 ETF on yield, payout growth, payment schedule, cost and risk.
PMMF
iShares Prime Money Market ETF
TTM yield · Weekly
VOO
Vanguard S&P 500 ETF
TTM yield · Quarterly
Quick take
- PMMF yields more today: 3.62% vs 1.04% (forward).
- PMMF pays every week; VOO pays every quarter.
- Over the last year VOO delivered the higher total return: +15.3% vs +3.6% (price change plus payouts).
- VOO is cheaper to own: 0.03% vs 0.20% expense ratio.
Generated from the latest data on both pages. Not a recommendation.
Side by side
| Metric | PMMF | VOO |
|---|---|---|
| Share price | $100.27 | $698.58 |
| TTM yield | 3.87% | 1.06% |
| Forward yield | 3.62% | 1.04% |
| Annual payout per share | $3.6346 | $7.292 |
| Payment frequency | Weekly | Quarterly |
| Next ex-date | Oct 28, 2026 (est.) | Dec 29, 2026 (est.) |
| Expense ratio | 0.20% | 0.03% |
| 1-year payout growth | — | +5.6% |
| 5-year payout CAGR | — | +7.0% |
| Consecutive years of increases | — | 1 year |
| Payout consistency (last 12) | 97/100 | 94/100 |
| 1-year total return | +3.6% | +15.3% |
| 1-year price return | -0.3% | +14.1% |
| Size (market cap / AUM) | 748.8M | 1.7T |
| Years paying | 1.6 | 16.1 |
| Sector / category | Prime Money Market | Large Blend |
✓ marks the more favourable figure where one exists (higher yield, growth, streak, consistency, return and size; lower cost, payout ratio and risk).
$10,000 invested today
| PMMF | VOO | |
|---|---|---|
| Shares | 99.7 | 14.3 |
| Income per year | $362 | $104 |
| Income per month (avg) | $30 | $9 |
At forward yields, before taxes. Model PMMF · Model VOO
Next payments
| Ex-date | Pay date | Per share | Status |
|---|---|---|---|
| PMMF Oct 28, 2026 | Nov 11, 2026 | $0.0699 | Est. |
| PMMF Nov 4, 2026 | Nov 18, 2026 | $0.0699 | Est. |
| PMMF Nov 11, 2026 | Nov 25, 2026 | $0.0699 | Est. |
| VOO Dec 29, 2026 | Jan 12, 2027 | $1.823 | Est. |
| VOO Mar 31, 2027 | Apr 14, 2027 | $1.823 | Est. |
| VOO Jul 1, 2027 | Jul 15, 2027 | $1.823 | Est. |
Annual payouts per share
PMMFVOO
Regular payments only; the current year is year to date. Per-share amounts are not directly comparable when share prices differ, so read this chart for growth trends.
FAQ
Which has the higher dividend yield, PMMF or VOO?
PMMF currently has the higher trailing yield: PMMF yields 3.87% and VOO yields 1.06%. Yield changes daily with price, so check the live figures above.
How often do PMMF and VOO pay?
PMMF pays every week and VOO pays every quarter. PMMF's next ex-date is Oct 28, 2026 and VOO's is Dec 29, 2026.
Is PMMF or VOO better for income?
It depends on what you are optimising for. PMMF and VOO differ in yield, growth, payment schedule and risk profile; the table above puts every metric side by side so you can weigh them for your own goals. This page is data, not advice.