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RZGvsIWOETF Comparison
Invesco S&P SmallCap 600® Pure Growth ETF (RZG) and iShares Russell 2000 Growth ETF (IWO) belong to the same industry segment: US Small Cap Growth. RZG's top 3 sector exposures are Health Care, Industrials and Information Technology. In contrast, IWO's top sector exposures are Health Care, Information Technology and Industrials. RZG is more expensive with a Total Expense Ratio (TER) of 0.35%, versus 0.24% for IWO. RZG is up 2.49% year-to-date (YTD) with -$35K in YTD flows. IWO performs worse with -2.1% YTD performance, and -$648M in YTD flows. Run a side-by-side ETF comparison of RZG and IWO below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
RZG vs IWO performance and flow charts
Performance
Cumulative Flows
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | RZG IWO | -4.52%-4.45% | -0.63%-4.66% | +2.49%-2.10% | +21.63%+22.80% | +51.00%+48.61% | +6.84%+3.15% |
| Flows | RZG IWO | -$584K-$134M | -$1M-$585M | -$35K-$648M | -$14M-$808M | -$18M-$696M | -$39M-$537M |
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | RZG IWO | +17.53%+21.35% | +22.44%+25.14% | +20.35%+22.19% | +22.97%+24.58% |
| Max drawdown | RZG IWO | -6.97%-10.53% | -14.71%-17.18% | -25.62%-28.47% | -38.45%-40.45% |
| Max drawdown duration | RZG IWO | 14d49d | 46d46d | 296d280d | 1521d1409d |
RZG | IWO | |
Last sale 3/13/2026 at 1:30 PM | $55.63 | $315.18 |
| Previous close 03/12/2026 | $55.65 | $316.45 |
| Consolidated volume 03/12/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
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RZG | IWO | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
RZG | IWO | |
|---|---|---|
| Last price | $55.63 | $315.18 |
| 1D performance | -0.04% | -0.40% |
| AuM | $105.85 M | $12.36 B |
| E/R | 0.35% | 0.24% |
Countries
Sectors
Diversification
Total weight of top 15 holdings out of 15
Total weight of top 15 holdings out of 15
Top 15 holdings
How have the RZG and IWO ETFs performed in 2026?
As of March 12, 2026, RZG is up 2.49% year-to-date (YTD), while IWO has lost -2.1%. That puts RZG better performer ahead so far this year.
Which ETF is attracting more investor money: RZG or IWO?
Year-to-date, the RZG ETF saw -$35K in flows, compared to -$648M for IWO.
Which ETF is more volatile: RZG or IWO?
Over the past year, RZG had a volatility of 22.44%, while IWO experienced 25.14%.
Which ETF is bigger: RZG or IWO?
As of March 12, 2026, RZG holds $105.85 M in assets under management (AUM), while IWO manages $12.36 B.
What sectors do the RZG and IWO ETFs invest in?
RZG leans toward sectors like Health Care, Industrials and Information Technology. Meanwhile, IWO focuses on Health Care, Information Technology and Industrials.
What are the top holdings of the RZG ETF and IWO ETF?
RZG top holdings include ACM RESEARCH, PTC THERAPEUTI/D and TRANSMEDICS GROUP. IWO holds in its top three: BLOOM ENERGY CORP, CREDO TECHNOLOGY GROUP HOLDING and KRATOS DEFENSE AND SECURITY SOLS.
Which ETF is more diversified: RZG or IWO?
RZG holds 130 securities with 21.07% of its assets in the top 15. IWO has 1094 securities and a top 15 weight of 13.7%.
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