VOL. XCIV, NO. 247

★ FINANCIAL TOOLS & SERVICES DIRECTORY ★

PRICE: 5 CENTS

Sunday, October 5, 2025

View DATAROMA View SEC API (sec-api.io)Back to Home

Head-to-head

DATAROMA vs SEC API (sec-api.io) comparison

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

Quick takeaways

DATAROMA adds Stock Ideas, and Investor Holdings coverage that SEC API (sec-api.io) skips.

SEC API (sec-api.io) includes Data APIs, Regulatory Filings Monitoring, 13D/13G, Financials, Management Compensation, IPO, and APIs & SDKs categories that DATAROMA omits.

DATAROMA highlights: Tracks portfolios of well-known 'Superinvestors' through SEC 13F filings, with detailed views of holdings, buys/sells, and quarter-to-quarter activity., Stock pages display Superinvestor ownership counts, a defined 'Hold Price' (quarter-end close), insider transaction totals over the past six months, plus TradingView charts and fundamentals., and Real-time insider transaction feed based on SEC Form 4 filings, with filterable listings..

SEC API (sec-api.io) is known for: Comprehensive API endpoints: query, full-text search, real-time streaming via WebSocket, download/PDF generator, XBRL-to-JSON conversion, and section extractors for 10-K/10-Q/8-K filings., Specialized form coverage including ADV, insider filings (Forms 3/4/5), 13F, 13D/G, Form 144, IPO registrations (S-1, 424B4), crowdfunding (Form C, Form D), Reg A filings, and fund reports (N-PORT, N-PX, N-CEN)., and Datasets include executive compensation, directors and board members, audit fees, subsidiaries, and public float/outstanding shares..

DATAROMA

dataroma.com

Hands-on review

Free resource that tracks Superinvestor 13F filings and insider Form 4 activity. Features include manager portfolios, aggregated holdings, insider trade feeds, and stock idea rankings. Quotes are sourced via Intrinio, with charts and fundamentals powered by TradingView. The site requires no login or account to use.

Platforms

Web

Pricing

Free

Quick highlights

Tracks portfolios of well-known 'Superinvestors' through SEC 13F filings, with detailed views of holdings, buys/sells, and quarter-to-quarter activity.
Stock pages display Superinvestor ownership counts, a defined 'Hold Price' (quarter-end close), insider transaction totals over the past six months, plus TradingView charts and fundamentals.
Real-time insider transaction feed based on SEC Form 4 filings, with filterable listings.
‘RealTime’ activity feed highlighting notable Superinvestor trades as they are reported.
S&P 500 'Value Ranking' grid for idea generation and stock discovery.

Community votes (overall)

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SEC API (sec-api.io)

sec-api.io

Editor’s pick Hands-on review

A commercial API suite for SEC/EDGAR data, designed for developers, quants, and compliance teams. The free tier includes 100 calls per month. Paid tiers unlock higher rate limits, more data (5 GB vs 15 GB monthly, with $0.30/GB overage), and features such as multiple API keys or redistribution rights for enterprise users. The platform emphasizes speed, with new filings typically available in under 300 ms.

Platforms

Web

API

Pricing

Free

Subscription

Quick highlights

Comprehensive API endpoints: query, full-text search, real-time streaming via WebSocket, download/PDF generator, XBRL-to-JSON conversion, and section extractors for 10-K/10-Q/8-K filings.
Specialized form coverage including ADV, insider filings (Forms 3/4/5), 13F, 13D/G, Form 144, IPO registrations (S-1, 424B4), crowdfunding (Form C, Form D), Reg A filings, and fund reports (N-PORT, N-PX, N-CEN).
Datasets include executive compensation, directors and board members, audit fees, subsidiaries, and public float/outstanding shares.
Historical coverage back to 1993 with support for all 400+ EDGAR form types; new filings made available within ~300 ms of posting.
Live filing feeds available in real time via WebSocket for instant integration.

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Overlap

Shared focus areas

2 overlaps

Mutual strengths include 13F, and Insider Data.

Where they differ

DATAROMA

Distinct strengths include:

Stock Ideas

Investor Holdings

Tracks portfolios of well-known 'Superinvestors' through SEC 13F filings, with detailed views of holdings, buys/sells, and quarter-to-quarter activity.
Stock pages display Superinvestor ownership counts, a defined 'Hold Price' (quarter-end close), insider transaction totals over the past six months, plus TradingView charts and fundamentals.
Real-time insider transaction feed based on SEC Form 4 filings, with filterable listings.
‘RealTime’ activity feed highlighting notable Superinvestor trades as they are reported.

SEC API (sec-api.io)

Distinct strengths include:

Data APIs

Regulatory Filings Monitoring

13D/13G

Financials

Management Compensation

IPO

APIs & SDKs

Comprehensive API endpoints: query, full-text search, real-time streaming via WebSocket, download/PDF generator, XBRL-to-JSON conversion, and section extractors for 10-K/10-Q/8-K filings.
Specialized form coverage including ADV, insider filings (Forms 3/4/5), 13F, 13D/G, Form 144, IPO registrations (S-1, 424B4), crowdfunding (Form C, Form D), Reg A filings, and fund reports (N-PORT, N-PX, N-CEN).
Datasets include executive compensation, directors and board members, audit fees, subsidiaries, and public float/outstanding shares.
Historical coverage back to 1993 with support for all 400+ EDGAR form types; new filings made available within ~300 ms of posting.

Feature-by-feature breakdown

Attribute	DATAROMA	SEC API (sec-api.io)
Categories Which research workflows each platform targets	Shared: 13F, Insider Data Unique: Stock Ideas, Investor Holdings	Shared: 13F, Insider Data Unique: Data APIs, Regulatory Filings Monitoring, 13D/13G, Financials, Management Compensation, IPO, APIs & SDKs
Asset types Supported asset classes and universes	Stocks, ETFs	Stocks, ETFs, Mutual Funds, Funds
Experience levels Who each product is built for	Beginner, Intermediate, Advanced	Beginner, Intermediate, Advanced
Platforms Where you can access the product	Web	Web, API
Pricing High-level pricing models	Free	Free, Subscription
Key features Core capabilities called out by each vendor	Unique Tracks portfolios of well-known 'Superinvestors' through SEC 13F filings, with detailed views of holdings, buys/sells, and quarter-to-quarter activity. Stock pages display Superinvestor ownership counts, a defined 'Hold Price' (quarter-end close), insider transaction totals over the past six months, plus TradingView charts and fundamentals. Real-time insider transaction feed based on SEC Form 4 filings, with filterable listings. ‘RealTime’ activity feed highlighting notable Superinvestor trades as they are reported. S&P 500 'Value Ranking' grid for idea generation and stock discovery. Aggregated 'Grand Portfolio' showing combined Superinvestor holdings and ownership statistics.	Unique Comprehensive API endpoints: query, full-text search, real-time streaming via WebSocket, download/PDF generator, XBRL-to-JSON conversion, and section extractors for 10-K/10-Q/8-K filings. Specialized form coverage including ADV, insider filings (Forms 3/4/5), 13F, 13D/G, Form 144, IPO registrations (S-1, 424B4), crowdfunding (Form C, Form D), Reg A filings, and fund reports (N-PORT, N-PX, N-CEN). Datasets include executive compensation, directors and board members, audit fees, subsidiaries, and public float/outstanding shares. Historical coverage back to 1993 with support for all 400+ EDGAR form types; new filings made available within ~300 ms of posting. Live filing feeds available in real time via WebSocket for instant integration. XBRL-to-JSON service delivers standardized financial statements (income, balance sheet, cash flow) mapped to US GAAP items; dataset is survivorship-bias free.
Tested Verified by hands-on testing inside Find My Moat	Yes	Yes
Editor pick Featured inside curated shortlists	Standard listing	Highlighted

Frequently Asked Questions

Which workflows do DATAROMA and SEC API (sec-api.io) both support?

Both platforms cover 13F, and Insider Data workflows, so you can research those use cases in either tool before digging into the feature differences below.

Do DATAROMA and SEC API (sec-api.io) require subscriptions?

Both DATAROMA and SEC API (sec-api.io) keep freemium access with optional paid upgrades, so you can trial each platform before committing.

How can you access DATAROMA and SEC API (sec-api.io)?

Both DATAROMA and SEC API (sec-api.io) 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?

DATAROMA differentiates itself with Tracks portfolios of well-known 'Superinvestors' through SEC 13F filings, with detailed views of holdings, buys/sells, and quarter-to-quarter activity., Stock pages display Superinvestor ownership counts, a defined 'Hold Price' (quarter-end close), insider transaction totals over the past six months, plus TradingView charts and fundamentals., and Real-time insider transaction feed based on SEC Form 4 filings, with filterable listings., whereas SEC API (sec-api.io) stands out for Comprehensive API endpoints: query, full-text search, real-time streaming via WebSocket, download/PDF generator, XBRL-to-JSON conversion, and section extractors for 10-K/10-Q/8-K filings., Specialized form coverage including ADV, insider filings (Forms 3/4/5), 13F, 13D/G, Form 144, IPO registrations (S-1, 424B4), crowdfunding (Form C, Form D), Reg A filings, and fund reports (N-PORT, N-PX, N-CEN)., and Datasets include executive compensation, directors and board members, audit fees, subsidiaries, and public float/outstanding shares..

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