ETF Insider adds ETF Overview, ETF Performance, ETF Holdings, ETF Factors, ETF Overlap, ETF Screeners, Portfolio, Correlation, and Blogs coverage that Similarweb skips.
VOL. XCIV, NO. 247
★ FINANCIAL TOOLS & SERVICES DIRECTORY ★
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Tuesday, October 28, 2025
Tool Comparison
ETF Insider vs Similarweb comparison
Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.
Quick takeaways
Similarweb includes App & Website Traffic, Data APIs, and Sheets / Excel Add-ins categories that ETF Insider omits.
In depth comparison
ETF Insider
etfinsider.co
Editor’s pick Hands-on review
ETF & mutual fund overlap/correlation and portfolio visualization tool featuring Sankey look‑through, correlation matrices, and efficient‑frontier (Sharpe) views. Free tier allows up to 4 saved portfolios and limited full‑holdings visibility; Pro ($14/mo) unlocks unlimited portfolios, full holdings depth, and Excel export. Enterprise adds a financial data API, custom reports/visualizations, and white‑label options. Coverage explicitly includes **US‑listed ETFs & mutual funds**; equities coverage is described as **international** on pricing, but the FAQ states non‑US assets not listed in the US are not supported (current constraint). Holdings are sourced primarily from SEC EDGAR and refreshed on a quarterly cadence based on filings; data may be delayed per exchanges/providers.
Categories
Platforms
WebAPI
Pricing
FreeSubscription
Quick highlights
- Holdings look‑through & overlap: visualize shared constituents across funds to surface concentration risk and duplication.
- Correlation matrix across portfolio assets; efficient‑frontier visualization with Sharpe‑ratio context.
- Sankey diagrams, drill‑downs by asset class, sector, geography and exchange; customizable visualizations.
- ETF screener (filters by asset class, geography, theme, provider, sector) and performance & info panels.
- Portfolio tooling: save portfolios (4 on Free; unlimited on Pro), CSV upload (Symbol, Quantity).
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Similarweb
similarweb.com
Hands-on review
Digital intelligence platform providing website and app traffic data, engagement benchmarks, and competitive insights. API access is sold separately or bundled with Enterprise plans, and is required for most native integrations (Excel, Sheets, Tableau, Power BI, Salesforce, HubSpot, Snowflake, Databricks). Webhooks support daily and monthly data release notifications. A free DigitalRank API offers basic website ranking data.
Platforms
WebAPI
Pricing
FreeSubscription
Quick highlights
- Website traffic and engagement analytics, including keyword research, referral sources, and a free traffic checker tool.
- APIs available in REST and Batch modes: REST delivers JSON responses, while Batch handles large CSV reports.
- Webhook support for subscribing to daily or monthly data releases, with options to manage subscriptions directly.
- Data Exporter for no-code bulk exports, including scheduled email delivery and CSV downloads.
- Bulk input support for uploading CSV lists (up to ~1M entries per report) to create large exports.
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Where they differ
ETF Insider
Distinct strengths include:
- Holdings look‑through & overlap: visualize shared constituents across funds to surface concentration risk and duplication.
- Correlation matrix across portfolio assets; efficient‑frontier visualization with Sharpe‑ratio context.
- Sankey diagrams, drill‑downs by asset class, sector, geography and exchange; customizable visualizations.
- ETF screener (filters by asset class, geography, theme, provider, sector) and performance & info panels.
Similarweb
Distinct strengths include:
- Website traffic and engagement analytics, including keyword research, referral sources, and a free traffic checker tool.
- APIs available in REST and Batch modes: REST delivers JSON responses, while Batch handles large CSV reports.
- Webhook support for subscribing to daily or monthly data releases, with options to manage subscriptions directly.
- Data Exporter for no-code bulk exports, including scheduled email delivery and CSV downloads.
Feature-by-feature breakdown
| Attribute | ETF Insider | Similarweb |
|---|---|---|
Categories Which research workflows each platform targets | Shared: Data Visualizations, APIs & SDKs Unique: ETF Overview, ETF Performance, ETF Holdings, ETF Factors, ETF Overlap, ETF Screeners, Portfolio, Correlation, Blogs | Shared: Data Visualizations, APIs & SDKs Unique: App & Website Traffic, Data APIs, Sheets / Excel Add-ins |
Asset types Supported asset classes and universes | ETFs, Mutual Funds, Stocks | Other |
Experience levels Who each product is built for | Beginner, Intermediate, Advanced | Beginner, Intermediate, Advanced |
Platforms Where you can access the product | Web, API | Web, API |
Pricing High-level pricing models | Free, Subscription | Free, Subscription |
Key features Core capabilities called out by each vendor | Unique
| Unique
|
Tested Verified by hands-on testing inside Find My Moat | Yes | Yes |
Editor pick Featured inside curated shortlists | Highlighted | Standard listing |
Frequently Asked Questions
Which workflows do ETF Insider and Similarweb both support?
Both platforms cover Data Visualizations, and APIs & SDKs workflows, so you can research those use cases in either tool before digging into the feature differences below.
Do ETF Insider and Similarweb require subscriptions?
Both ETF Insider and Similarweb keep freemium access with optional paid upgrades, so you can trial each platform before committing.
How can you access ETF Insider and Similarweb?
Both ETF Insider and Similarweb prioritize web or desktop access. Investors wanting a mobile-first workflow may need to rely on responsive web views.
What unique strengths set the two platforms apart?
ETF Insider differentiates itself with Holdings look‑through & overlap: visualize shared constituents across funds to surface concentration risk and duplication., Correlation matrix across portfolio assets; efficient‑frontier visualization with Sharpe‑ratio context., and Sankey diagrams, drill‑downs by asset class, sector, geography and exchange; customizable visualizations., whereas Similarweb stands out for Website traffic and engagement analytics, including keyword research, referral sources, and a free traffic checker tool., APIs available in REST and Batch modes: REST delivers JSON responses, while Batch handles large CSV reports., and Webhook support for subscribing to daily or monthly data releases, with options to manage subscriptions directly..
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Curation & Accuracy
This directory blends AI‑assisted discovery with human curation. Entries are reviewed, edited, and organized with the goal of expanding coverage and sharpening quality over time. Your feedback helps steer improvements (because no single human can capture everything all at once).
Details change. Pricing, features, and availability may be incomplete or out of date. Treat listings as a starting point and verify on the provider’s site before making decisions. If you spot an error or a gap, send a quick note and I’ll adjust.