VIOO ranks 3rd and RZG 10th of 13 funds in the S&P SmallCap 600 Category.
RZG vs VIOO
VIOO −0.28pt a year
0.35%0.07%
VIOO 7.4×the volume
11.2K82.7K
VIOO +1.3pt
+9.3%+10.6%
RZG vs VIOO Performance
+16.7%+34.5%
- RZG 0.35%
- VIOO 0.07%, better
- RZG $118M
- VIOO $6.1B
- RZG +16.2%
- VIOO +20.8%, better
- RZG 0.58%
- VIOO 1.15%, better
- RZG 128
- VIOO 610
- RZG 11.2K sh
- VIOO 82.7K sh, better
- RZG $62.23
- VIOO $130.53
ETF.net Grade
| Pillar | RZG | VIOO |
|---|---|---|
| Cost | F22 | A82Higher |
| Mission | A94Higher | A83 |
| Risk | D36 | C53Higher |
| Tradability | D36Higher | D31 |
| Holdings | D37 | A86Higher |
| Durability | D33 | A74Higher |
Rank among S&P SmallCap 600 funds
Same Category. RZG and VIOO are both graded against the same 13 S&P SmallCap 600 funds, so their Grades compare head to head.
Our read on each fund
RZGC
VIOOA
In short
RZG Small-cap growth with no fence-sitters: RZG holds only the S&P 600 names that score strongest on growth, about 130 of them, weighted by growth score instead of size. A 2006-vintage purist in a cap-weighted world.
VIOO Vanguard's version of the S&P SmallCap 600: it owns all of the index's roughly 600 names at index weight, no sampling shortcuts, for 0.07% a year. That is well under half the typical fee among S&P 600 index funds, and it has been running since 2010.
Stated mandate
RZG The Fund is based on the S&P SmallCap 600 Revenue-Weighted Index and invests at least 90% of total assets in securities using a rules-based approach, with no company exceeding a 5% weighting.
VIOO The fund is a passively managed, full-replication ETF designed to follow the S&P SmallCap 600 Index, which represents small U.S. companies. It holds the index constituents in the same capitalization weights.
Why people hold it
Worth knowing
RZG vs VIOO Holdings
How we measure overlap
Each holding counts at its smaller weight in the two funds, summed over the full Holdings. Sector, country and asset class use the same rule on each fund’s split. Cash, FX and derivative lines stay out of the counts. Two bond funds get no overlap figure.
RZG vs VIOO Cost
Overpaying RZG vs VIOO
$5,646
On $10,000 over 30 years. 7% growth a year before fees, expense ratio only.
RZG 0.35%
$7,126
VIOO 0.07%
$1,480
Cost over time
Year by year
| Year | RZG | VIOO | Overpaying |
|---|---|---|---|
| 10 | $634 | $128 | $506 |
| 20 | $2,454 | $503 | $1,951 |
| 30 | $7,126 | $1,480 | $5,646 |
- 0.35%RZG
- 0.07%VIOO, cheaper
- Middle half of S&P SmallCap 600 funds
- Median 0.15%
VIOO 3rd cheapest of 13 funds
RZG 10th cheapest of 13 funds
RZG vs VIOO Dividends
- RZG 0.58%
- VIOO 1.15%, better
- RZG $0.36
- VIOO $1.51
- RZG $0.11
- VIOO $1.51
- RZG Sep 21, 2026
- VIOO Dec 22, 2025
- RZG Sep 25, 2026
- VIOO Dec 24, 2025
- RZG Quarterly
- VIOO Annual
Distribution history
RZG vs VIOO Risk
Fall from peak · 5 years
- RZG
- VIOO
Risk facts
- Volatility
- RZG 20.1%VIOO 18.8%, better
- Return per unit of risk
- RZG 0.72VIOO 0.75, better
- Worst fall
- RZG −38.3%VIOO −27.9%, better
- Market sensitivity
- RZG 1.15VIOO 1.04
Popular comparisons
- 0.35% · 0.03%
- Same Category. Both funds are graded against the same funds, so their Grades compare head to head.
- 0.07% · 0.03%
- Same Category. Both funds are graded against the same funds, so their Grades compare head to head.
- 0.35% · 0.06%
- Same Category. Both funds are graded against the same funds, so their Grades compare head to head.
- 0.07% · 0.06%
- Same Category. Both funds are graded against the same funds, so their Grades compare head to head.
- 0.35% · 0.10%
- Same Category. Both funds are graded against the same funds, so their Grades compare head to head.
- 0.07% · 0.10%
- Same Category. Both funds are graded against the same funds, so their Grades compare head to head.