Unusual Whales adds Options & Derivatives, Portfolio, Paper Trading, Dark Pool & Off-Exchange, Alerts, US Government Trades, Insider Data, APIs & SDKs, Data APIs, Education, Calendar, and Dividends coverage that Valuesider skips.
VOL. XCIV, NO. 247
★ FINANCIAL TOOLS & SERVICES DIRECTORY ★
PRICE: 5 CENTS
Friday, October 31, 2025
Tool Comparison
Unusual Whales vs Valuesider comparison
Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.
Quick takeaways
Valuesider includes Institutional Data, Investor Holdings, and Blogs categories that Unusual Whales omits.
Unusual Whales ships a mobile app. Valuesider is web/desktop only.
In depth comparison
Unusual Whales
unusualwhales.com
Editor’s pick Hands-on review
Real-time options flow and dark-pool analytics built for active traders. Free plans view delayed data; paid tiers stream live flow, with annual plans unlocking data downloads. The public API is sold separately, and “Periscope” (market-wide SPX exposure) is available as an add-on.
Categories
Platforms
WebMobileAPI
Pricing
FreeSubscription
Quick highlights
- Live options flow across all US options exchanges, with a status indicator so you know the feed is healthy.
- Dark-pool tape plus ‘Dark Pool Levels’ to surface recent prints and ticker-specific liquidity zones.
- Options and stock screeners with filters for premium, volume, open interest, IV rank, and common technicals.
- Options Profit Calculator to model multi-leg strategies, Greeks, and payoff P/L.
- Paper trading for both stocks and options to test ideas without risk.
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Valuesider
valuesider.com
Free, 13F‑based ‘super‑investor’ explorer with two screeners (holdings & activity), per‑investor portfolios, per‑ticker ownership/activity pages, and basic news feeds. Exports to CSV/XLS/XLSX; provides embeddable charts. Transparent about 13F caveats (delay, options/bonds coverage limits) and split adjustments; includes direct SEC report links for verification.
Platforms
Web
Pricing
Free
Quick highlights
- Super‑investor hub: browse portfolios of well‑known value investors (Buffett, Ackman, Klarman, etc.) with top holdings and recent activity.
- Holdings Screener (free): filter by % of grand portfolio, # of gurus, security type, values, and more; export CSV/XLS/XLSX.
- Activity Screener (free): filter buys/sells by period (last Q, last 2/4 Qs or latest N reports) and by security type; export CSV/XLS/XLSX.
- Per‑ticker ‘Ownership’ & ‘Activity’ pages that aggregate which gurus hold or changed a position.
- Embeddable historical ownership charts for tickers (auto‑updating ‘Top holders’ widget).
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Where they differ
Unusual Whales
Distinct strengths include:
Options & DerivativesPortfolioPaper TradingDark Pool & Off-ExchangeAlertsUS Government TradesInsider DataAPIs & SDKs
- Live options flow across all US options exchanges, with a status indicator so you know the feed is healthy.
- Dark-pool tape plus ‘Dark Pool Levels’ to surface recent prints and ticker-specific liquidity zones.
- Options and stock screeners with filters for premium, volume, open interest, IV rank, and common technicals.
- Options Profit Calculator to model multi-leg strategies, Greeks, and payoff P/L.
Valuesider
Distinct strengths include:
- Super‑investor hub: browse portfolios of well‑known value investors (Buffett, Ackman, Klarman, etc.) with top holdings and recent activity.
- Holdings Screener (free): filter by % of grand portfolio, # of gurus, security type, values, and more; export CSV/XLS/XLSX.
- Activity Screener (free): filter buys/sells by period (last Q, last 2/4 Qs or latest N reports) and by security type; export CSV/XLS/XLSX.
- Per‑ticker ‘Ownership’ & ‘Activity’ pages that aggregate which gurus hold or changed a position.
Feature-by-feature breakdown
| Attribute | Unusual Whales | Valuesider |
|---|---|---|
Categories Which research workflows each platform targets | Shared: Screeners, News, 13F Unique: Options & Derivatives, Portfolio, Paper Trading, Dark Pool & Off-Exchange, Alerts, US Government Trades, Insider Data, APIs & SDKs, Data APIs, Education, Calendar, Dividends | Shared: Screeners, News, 13F Unique: Institutional Data, Investor Holdings, Blogs |
Asset types Supported asset classes and universes | Stocks, ETFs, Options | Stocks, ETFs |
Experience levels Who each product is built for | Beginner, Intermediate, Advanced | Beginner, Intermediate, Advanced |
Platforms Where you can access the product | Web, Mobile, API | Web |
Pricing High-level pricing models | Free, Subscription | Free |
Key features Core capabilities called out by each vendor | Unique
| Unique
|
Tested Verified by hands-on testing inside Find My Moat | Yes | Not yet |
Editor pick Featured inside curated shortlists | Highlighted | Standard listing |
Frequently Asked Questions
Which workflows do Unusual Whales and Valuesider both support?
Both platforms cover Screeners, News, and 13F workflows, so you can research those use cases in either tool before digging into the feature differences below.
Do Unusual Whales and Valuesider require subscriptions?
Both Unusual Whales and Valuesider keep freemium access with optional paid upgrades, so you can trial each platform before committing.
Which tool has mobile access?
Unusual Whales ships a dedicated mobile experience, while Valuesider focuses on web or desktop access.
What unique strengths set the two platforms apart?
Unusual Whales differentiates itself with Live options flow across all US options exchanges, with a status indicator so you know the feed is healthy., Dark-pool tape plus ‘Dark Pool Levels’ to surface recent prints and ticker-specific liquidity zones., and Options and stock screeners with filters for premium, volume, open interest, IV rank, and common technicals., whereas Valuesider stands out for Super‑investor hub: browse portfolios of well‑known value investors (Buffett, Ackman, Klarman, etc.) with top holdings and recent activity., Holdings Screener (free): filter by % of grand portfolio, # of gurus, security type, values, and more; export CSV/XLS/XLSX., and Activity Screener (free): filter buys/sells by period (last Q, last 2/4 Qs or latest N reports) and by security type; export CSV/XLS/XLSX..
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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.