VOL. XCIV, NO. 247

★ FINANCIAL TOOLS & SERVICES DIRECTORY ★

PRICE: 5 CENTS

Sunday, October 5, 2025

View marketstack View Seeking Alpha Back to Home

Head-to-head

marketstack vs Seeking Alpha comparison

Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.

Quick takeaways

marketstack adds Data APIs, Splits, Interest Rates, and APIs & SDKs coverage that Seeking Alpha skips.

Seeking Alpha includes Screeners, ETF Screeners, Stock Comparison, Data Visualizations, Portfolio, Watchlist, News, Alerts, Calendar, Financials, Scores, Bulls Say Bear Say, Transcripts, ETF Overview, ETF Performance, ETF Fundamentals, ETF Factors, Analyst Forecasts, Options, Which ETF includes this Stock?, AI Report, and AI Earnings Summary categories that marketstack omits.

marketstack highlights: RESTful JSON API with secure API key access, HTTPS transport, and a 5 requests/sec global limit., End-of-day data with 15+ years of history across 500,000+ tickers, including MIC-level filtering and adjusted fields (open, close, volume)., and Intraday data for U.S. markets via IEX, with intervals from 1–60 minutes. Real-time reference prices are derived from IEX feeds; some fields require separate entitlements..

Seeking Alpha is known for: Quant Ratings for stocks with five Factor Grades (Value, Growth, Profitability, Momentum, EPS Revisions), plus ETF Factor Grades (Momentum, Expenses, Dividends, Risk, Liquidity)., Stock and ETF screeners with ratings, grades, and advanced filters. Premium members can save screens for reuse., and Side-by-side comparison of up to 20 stocks, with export to Excel or PDF..

Seeking Alpha offers mobile access, which marketstack skips.

marketstack

marketstack.com

A global market data API with free and paid tiers. End-of-day coverage spans 15+ years and 500k+ tickers, while intraday and real-time access are unlocked on higher plans. Rate limits apply: 5 requests per second globally, with some endpoints (like ETF holdings) counting as multiple calls. Premium tiers add features like SEC/EDGAR filings, analyst ratings, and bond/index data. Data is sourced from Tiingo for U.S. markets, and uptime is tracked on a public status page.

Platforms

Web

API

Pricing

Free

Subscription

Quick highlights

RESTful JSON API with secure API key access, HTTPS transport, and a 5 requests/sec global limit.
End-of-day data with 15+ years of history across 500,000+ tickers, including MIC-level filtering and adjusted fields (open, close, volume).
Intraday data for U.S. markets via IEX, with intervals from 1–60 minutes. Real-time reference prices are derived from IEX feeds; some fields require separate entitlements.
Professional and higher tiers include real-time stock prices with minute-level updates (1 API call per minute rate cap).
Corporate actions endpoints for dividends and stock splits.

Community votes (overall)

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Seeking Alpha

seekingalpha.com

Editor’s pick Hands-on review

One of the largest investor communities online, blending crowdsourced research with data tools. Premium unlocks Quant Ratings and Factor Grades, stock and ETF screeners, advanced comparison tools with Excel/PDF export, broker syncing (via Plaid and SnapTrade), and AI-driven “Virtual Analyst” reports. PRO goes further with curated Top Ideas, Short Ideas, and the PRO Quant Portfolio. Market quotes are a mix of real-time and 15-minute delayed, depending on the exchange.

Platforms

Web

Mobile

Pricing

Free

Subscription

Quick highlights

Quant Ratings for stocks with five Factor Grades (Value, Growth, Profitability, Momentum, EPS Revisions), plus ETF Factor Grades (Momentum, Expenses, Dividends, Risk, Liquidity).
Stock and ETF screeners with ratings, grades, and advanced filters. Premium members can save screens for reuse.
Side-by-side comparison of up to 20 stocks, with export to Excel or PDF.
Portfolio tools with custom views, health scores, and Excel export. Premium users can link brokers for daily auto-sync through Plaid or SnapTrade.
Market data includes both real-time and delayed quotes, with advanced charts covering intraday to multi-year intervals.

Community votes (overall)

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Overlap

Shared focus areas

4 overlaps

Mutual strengths include Dividends, ETF Holdings, and Analyst Recommendations plus 1 more area.

Where they differ

marketstack

Distinct strengths include:

RESTful JSON API with secure API key access, HTTPS transport, and a 5 requests/sec global limit.
End-of-day data with 15+ years of history across 500,000+ tickers, including MIC-level filtering and adjusted fields (open, close, volume).
Intraday data for U.S. markets via IEX, with intervals from 1–60 minutes. Real-time reference prices are derived from IEX feeds; some fields require separate entitlements.
Professional and higher tiers include real-time stock prices with minute-level updates (1 API call per minute rate cap).

Seeking Alpha

Distinct strengths include:

Quant Ratings for stocks with five Factor Grades (Value, Growth, Profitability, Momentum, EPS Revisions), plus ETF Factor Grades (Momentum, Expenses, Dividends, Risk, Liquidity).
Stock and ETF screeners with ratings, grades, and advanced filters. Premium members can save screens for reuse.
Side-by-side comparison of up to 20 stocks, with export to Excel or PDF.
Portfolio tools with custom views, health scores, and Excel export. Premium users can link brokers for daily auto-sync through Plaid or SnapTrade.

Feature-by-feature breakdown

Attribute	marketstack	Seeking Alpha
Categories Which research workflows each platform targets	Shared: Dividends, ETF Holdings, Analyst Recommendations, Analyst Price Targets Unique: Data APIs, Splits, Interest Rates, APIs & SDKs	Shared: Dividends, ETF Holdings, Analyst Recommendations, Analyst Price Targets Unique: Screeners, ETF Screeners, Stock Comparison, Data Visualizations, Portfolio, Watchlist, News, Alerts, Calendar, Financials, Scores, Bulls Say Bear Say, Transcripts, ETF Overview, ETF Performance, ETF Fundamentals, ETF Factors, Analyst Forecasts, Options, Which ETF includes this Stock?, AI Report, AI Earnings Summary
Asset types Supported asset classes and universes	Stocks, ETFs, Bonds, Commodities	Stocks, ETFs, Mutual Funds, Closed-End Funds, Options
Experience levels Who each product is built for	Intermediate, Advanced	Beginner, Intermediate, Advanced
Platforms Where you can access the product	Web, API	Web, Mobile
Pricing High-level pricing models	Free, Subscription	Free, Subscription
Key features Core capabilities called out by each vendor	Unique RESTful JSON API with secure API key access, HTTPS transport, and a 5 requests/sec global limit. End-of-day data with 15+ years of history across 500,000+ tickers, including MIC-level filtering and adjusted fields (open, close, volume). Intraday data for U.S. markets via IEX, with intervals from 1–60 minutes. Real-time reference prices are derived from IEX feeds; some fields require separate entitlements. Professional and higher tiers include real-time stock prices with minute-level updates (1 API call per minute rate cap). Corporate actions endpoints for dividends and stock splits. ETF holdings data (Basic+ plans and above) with identifiers like ISIN and CUSIP; each request consumes 20 API calls.	Unique Quant Ratings for stocks with five Factor Grades (Value, Growth, Profitability, Momentum, EPS Revisions), plus ETF Factor Grades (Momentum, Expenses, Dividends, Risk, Liquidity). Stock and ETF screeners with ratings, grades, and advanced filters. Premium members can save screens for reuse. Side-by-side comparison of up to 20 stocks, with export to Excel or PDF. Portfolio tools with custom views, health scores, and Excel export. Premium users can link brokers for daily auto-sync through Plaid or SnapTrade. Market data includes both real-time and delayed quotes, with advanced charts covering intraday to multi-year intervals. Full library of earnings call transcripts, with AI-generated “Earnings Call Insights” and “Virtual Analyst” summaries.
Tested Verified by hands-on testing inside Find My Moat	Not yet	Yes
Editor pick Featured inside curated shortlists	Standard listing	Highlighted

Frequently Asked Questions

Which workflows do marketstack and Seeking Alpha both support?

Both platforms cover Dividends, ETF Holdings, Analyst Recommendations, and Analyst Price Targets workflows, so you can research those use cases in either tool before digging into the feature differences below.

Do marketstack and Seeking Alpha require subscriptions?

Both marketstack and Seeking Alpha keep freemium access with optional paid upgrades, so you can trial each platform before committing.

Which tool has mobile access?

Seeking Alpha ships a dedicated mobile experience, while marketstack focuses on web or desktop access.

What unique strengths set the two platforms apart?

marketstack differentiates itself with RESTful JSON API with secure API key access, HTTPS transport, and a 5 requests/sec global limit., End-of-day data with 15+ years of history across 500,000+ tickers, including MIC-level filtering and adjusted fields (open, close, volume)., and Intraday data for U.S. markets via IEX, with intervals from 1–60 minutes. Real-time reference prices are derived from IEX feeds; some fields require separate entitlements., whereas Seeking Alpha stands out for Quant Ratings for stocks with five Factor Grades (Value, Growth, Profitability, Momentum, EPS Revisions), plus ETF Factor Grades (Momentum, Expenses, Dividends, Risk, Liquidity)., Stock and ETF screeners with ratings, grades, and advanced filters. Premium members can save screens for reuse., and Side-by-side comparison of up to 20 stocks, with export to Excel or PDF..

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