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OEFvsUSMCETF Comparison
iShares S&P 100 ETF (OEF) and Principal U.S. Mega-Cap ETF (USMC) belong to the same industry segment: US Large Cap. OEF's top 3 sector exposures are Information Technology, Communication Services and Consumer Discretionary. In contrast, USMC's top sector exposures are Information Technology, Communication Services and Financials. OEF is more expensive with a Total Expense Ratio (TER) of 0.2%, versus 0.12% for USMC. OEF is down -2.74% year-to-date (YTD) with +$217M in YTD flows. USMC performs better with -1.89% YTD performance, and -$102M in YTD flows. Run a side-by-side ETF comparison of OEF and USMC below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
OEF vs USMC performance and flow charts
Performance
Cumulative Flows
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | OEF USMC | -2.16%-1.15% | -3.22%-2.07% | -2.74%-1.89% | +24.47%+20.11% | +97.75%+88.08% | +97.67%+98.69% |
| Flows | OEF USMC | +$318M+$4M | +$423M-$154M | +$217M-$102M | +$8.00B+$61M | +$12.82B+$670M | +$13.23B-$168M |
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | OEF USMC | +12.07%+10.48% | +19.22%+17.83% | +15.80%+14.78% | +17.64%+16.31% |
| Max drawdown | OEF USMC | -4.55%-4.68% | -14.24%-12.99% | -19.77%-19.07% | -26.44%-24.11% |
| Max drawdown duration | OEF USMC | 76d75d | 45d45d | 126d139d | 696d542d |
OEF | USMC | |
Last sale 3/12/2026 at 1:30 PM | $328.54 | $66.14 |
| Previous close 03/11/2026 | $333.47 | $67.04 |
| Consolidated volume 03/11/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
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OEF | USMC | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
OEF | USMC | |
|---|---|---|
| Last price | $328.54 | $66.14 |
| 1D performance | -1.48% | -1.35% |
| AuM | $28.59 B | $3.07 B |
| E/R | 0.2% | 0.12% |
OEF | USMC | |
|---|---|---|
| Management strategy | Passive | Active |
| Provider | iShares | Principal Global Investors |
| Benchmark | S&P 100 Index | - |
| N° of holdings | 99 | 23 |
| Asset class | Equities | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | October 23, 2000 | October 11, 2017 |
| ESG | No | No |
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 OEF and USMC ETFs performed in 2026?
As of March 11, 2026, OEF is down -2.74% year-to-date (YTD), while USMC has lost -1.89%. That puts USMC better performer ahead so far this year.
Which ETF is attracting more investor money: OEF or USMC?
Year-to-date, the OEF ETF saw +$217M in flows, compared to -$102M for USMC.
Which ETF is more volatile: OEF or USMC?
Over the past year, OEF had a volatility of 19.22%, while USMC experienced 17.83%.
Which ETF is bigger: OEF or USMC?
As of March 11, 2026, OEF holds $28.59 B in assets under management (AUM), while USMC manages $3.07 B.
What sectors do the OEF and USMC ETFs invest in?
OEF leans toward sectors like Information Technology, Communication Services and Consumer Discretionary. Meanwhile, USMC focuses on Information Technology, Communication Services and Financials.
What are the top holdings of the OEF ETF and USMC ETF?
OEF top holdings include NVIDIA, APPLE and MICROSOFT-T. USMC holds in its top three: NVIDIA, APPLE and ALPHABET INC-CL.
Which ETF is more diversified: OEF or USMC?
OEF holds 102 securities with 61.62% of its assets in the top 15. USMC has 23 securities and a top 15 weight of 72.95%.
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