Rates updated · Based on 42 tracked money market accounts
How much are you losing in a typical money market account instead of the best one?
A saver in a typical money market account gives up about $544 a year versus a top-available one — a gap of 2.17 percentage points (1.77% cohort median vs 3.95% best available) on a $25,000 balance.
Gap Spread
2.17%
percentage points
Best Available
3.95%
APY
Cohort Median
1.77%
APY
What the gap costs you per year
| Balance | Annual interest lost | 5-year cost |
|---|---|---|
| $10,000 | $218 | $1,090 |
| $25,000 | $544 | $2,720 |
| $50,000 | $1,087 | $5,435 |
| $100,000 | $2,175 | $10,875 |
| $250,000 | $5,438 | $27,190 |
How the Money Market Spread Index has moved
Each month's value is recorded as a dated snapshot. The full machine-readable series is published as a public dataset.
| Month | Index value | Gap | Tracked |
|---|---|---|---|
| Jun 2026 | $544/yr | 2.17% | 42 |
Methodology
Money Market Spread Index = representativeBalance × (bestAvailableAPY − cohortMedianAPY)
representativeBalance is $25,000 — held fixed so the Index moves only when rates move. bestAvailableAPY is the average of the top-3 rates across the 42 actively tracked money market accounts in the SwitchWize rate database. cohortMedianAPY is the median rate across the same tracked set — the "typical" money market account a saver would otherwise pick.
The dated monthly series is published as a public dataset at /data/indices/mma-spread.
See today's top money market accounts
Compare every tracked money market account ranked by rate, then trust and access.
Compare money market accounts →