ETF comparison tool: compare ETFs by holdings
An ETF comparison tool compares two funds by holdings, overlap, and concentration rather than by category labels. Guardfolio's free tool uses licensed full holdings so you can compare ETFs before you add a second fund.
In short, use this ETF comparison hub to compare ETFs on what they own. The 2-fund checker reports weight overlap for supported US funds. Example: FXAIX vs VOO is about 93.4% overlap, so holding both adds little diversification.
Three ways to compare
The checker compares any two supported funds in your browser. The matrix shows all pairwise overlap across 22 widely held US ETFs. Pair pages below go deeper on high-search comparisons.
How to compare ETFs
Category labels such as "large blend" hide duplicate holdings. Compare ETFs in this order:
- Pick two tickers you already hold or plan to add.
- Run a holdings comparison for weight overlap and shared names. FXAIX vs VOO is 93.4% in the licensed dataset. VTI vs VOO is 88.5%. QQQ vs VOO is 53.6%.
- If overlap is High or Severe, treat them as one bet, then check concentration and fees.
- If you hold the same funds across a 401(k), IRA, and taxable account, compare the full portfolio after sync, not only the pair.
ETF comparison tool vs ETFRC vs Morningstar
ETFRC ranks for "etf comparison" as a research catalog of fund pairs. Morningstar Instant X-Ray is a manual snapshot. Guardfolio is the free holdings comparison for popular US pairs, with a path to portfolio-weighted overlap after broker sync.
| Need | Choose | What you get |
|---|---|---|
| Compare two popular US ETFs or index funds now | Guardfolio | Licensed full holdings, weight overlap, no signup. 22-fund US set plus dated pair pages |
| Browse a wide research catalog of fund pairs | ETFRC | Pair-overlap research pages. No broker sync |
| Fund ratings and style box | Morningstar Premium | Research snapshot. Manual holdings entry. $249/yr |
| Backtest model weights | Portfolio Visualizer | Historical simulations. No live account overlap |
Popular ETF and fund comparisons
Canadian and UCITS pairs live on their own hubs: Canadian ETF overlap and UCITS ETF overlap.
ETF comparison FAQs
What is an ETF comparison tool?
In short, an ETF comparison tool lines up two funds on holdings, overlap, and concentration instead of marketing categories. Guardfolio's free tool uses licensed full holdings and reports weight overlap plus shared securities.
How do I compare ETFs?
In short, compare ETFs by holdings overlap first. Open the 2-fund checker, read the weight overlap and shared names, then check concentration and expense ratios. Do not stop at "large blend" or "dividend" labels.
What is the best free ETF comparison tool?
In short, Guardfolio is the best free ETF comparison tool when you want licensed full-holdings overlap on popular US pairs with no signup. ETFRC is useful as a wider research catalog. Morningstar X-Ray is a paid research snapshot.
Is ETF comparison the same as ETF overlap?
The key difference is scope. ETF comparison can include fees, yield, and tracking. ETF overlap is the holdings slice: how much two funds own the same stocks by weight. This hub uses overlap as the primary comparison because duplicate holdings are the hidden risk.
Compare your full portfolio
Pair tools show two funds at equal weight. Your real portfolio may hold five funds at different sizes across 401(k), IRA, and taxable accounts.
Start a 7-day trial for look-through overlap, concentration alerts, and drift monitoring after each sync. Or try the free portfolio risk report first.