ECB Data Portal adds Central Bank Watcher, Inflation Rates, Interest Rates, GDP, Unemployment Rates, Yield Curves, and Real Yields coverage that Relative Rotation Graphs® (RRG Research) skips.
VOL. XCIV, NO. 247
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Friday, December 26, 2025
Tool Comparison
ECB Data Portal vs Relative Rotation Graphs® (RRG Research) comparison
Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.
Quick takeaways
Relative Rotation Graphs® (RRG Research) includes Stock Comparison categories that ECB Data Portal omits.
ECB Data Portal has a free tier, while Relative Rotation Graphs® (RRG Research) requires a paid plan.
In depth comparison
ECB Data Portal
data.ecb.europa.eu
Official ECB gateway for euro‑area statistics with an open SDMX 2.1 REST API. The new endpoint is https://data-api.ecb.europa.eu/service/ (replacing the legacy SDW path). Content negotiation supports SDMX‑JSON, CSV, and SDMX‑ML. Charts and tables can be downloaded as CSV/XLS (long & wide), and charts as PNG/PDF/PPT. Typical update cadence is daily to monthly (e.g., reference FX rates around 16:00 CET on working days). ECB advises migrating from the old SDW URL as automatic redirects are planned to end on 1 Oct 2025.
Categories
Platforms
WebAPI
Pricing
Free
Quick highlights
- Open SDMX 2.1 REST API with discovery & retrieval modes; single entry point at data-api.ecb.europa.eu/service/ and rich query parameters (e.g., startPeriod/endPeriod, updatedAfter, includeHistory, detail, firstNObservations/lastNObservations).
- Format flexibility via content negotiation and the `format` query param: SDMX‑JSON, CSV, and SDMX‑ML (structure‑specific and generic).
- Interactive portal with export of data (CSV, XLS long/wide, SDMX) and export of visuals (PNG, PDF, PowerPoint).
- Comprehensive euro‑area macro & markets coverage: HICP inflation, key & market interest rates, exchange rates (reference rates), GDP and labor indicators, plus euro‑area yield curves (spot/forward/par).
- Revisions/deltas supported (`updatedAfter`) and conditional GET via `If‑Modified‑Since` for efficient sync.
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Relative Rotation Graphs® (RRG Research)
relativerotationgraphs.com
RRG Research (creator/owner of Relative Rotation Graphs®) offers: (1) **RRG Online** - a lightweight, subscription-based web app with pre-defined universes and limited functionality (includes a one-month free trial; pricing starts from $10/month); and (2) **RRG API** - a bespoke/contact-priced service to embed RRGs into professional workflows using client-supplied data (XML in -> JSON out).
Platforms
WebAPI
Pricing
SubscriptionOther
Quick highlights
- Relative Rotation Graphs® (RRGs®) visualize trends in relative strength/performance of multiple securities in a universe versus a common benchmark (and each other).
- RRGs are described by the vendor as applicable across asset classes (e.g., stock indexes, stock sectors, individual stocks, bonds, (crypto)-currencies, and asset allocation).
- RRG Online: vendor-run web implementation built in cooperation with Optuma, positioned as a "lightweight" version with limited functionality and pre-defined universes.
- RRG Online universes/benchmarks (examples listed by the vendor) include S&P 500 sectors vs S&P 500, AEX stocks vs AEX, ASX sectors vs ASX, Euro STOXX 50 stocks vs Euro STOXX 50, STOXX European sectors vs STOXX 600, Jakarta IDX stocks vs IDX, crypto vs BTC/USD, and G10 FX/currency pairs.
- RRG Online interaction features include toggling securities on/off, setting trail length, zooming/dragging, snapping axes, and playing/animating historical rotation via a slider or play button.
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Where they differ
ECB Data Portal
Distinct strengths include:
- Open SDMX 2.1 REST API with discovery & retrieval modes; single entry point at data-api.ecb.europa.eu/service/ and rich query parameters (e.g., startPeriod/endPeriod, updatedAfter, includeHistory, detail, firstNObservations/lastNObservations).
- Format flexibility via content negotiation and the `format` query param: SDMX‑JSON, CSV, and SDMX‑ML (structure‑specific and generic).
- Interactive portal with export of data (CSV, XLS long/wide, SDMX) and export of visuals (PNG, PDF, PowerPoint).
- Comprehensive euro‑area macro & markets coverage: HICP inflation, key & market interest rates, exchange rates (reference rates), GDP and labor indicators, plus euro‑area yield curves (spot/forward/par).
Relative Rotation Graphs® (RRG Research)
Distinct strengths include:
- Relative Rotation Graphs® (RRGs®) visualize trends in relative strength/performance of multiple securities in a universe versus a common benchmark (and each other).
- RRGs are described by the vendor as applicable across asset classes (e.g., stock indexes, stock sectors, individual stocks, bonds, (crypto)-currencies, and asset allocation).
- RRG Online: vendor-run web implementation built in cooperation with Optuma, positioned as a "lightweight" version with limited functionality and pre-defined universes.
- RRG Online universes/benchmarks (examples listed by the vendor) include S&P 500 sectors vs S&P 500, AEX stocks vs AEX, ASX sectors vs ASX, Euro STOXX 50 stocks vs Euro STOXX 50, STOXX European sectors vs STOXX 600, Jakarta IDX stocks vs IDX, crypto vs BTC/USD, and G10 FX/currency pairs.
Feature-by-feature breakdown
| Attribute | ECB Data Portal | Relative Rotation Graphs® (RRG Research) |
|---|---|---|
Categories Which research workflows each platform targets | Shared: Data APIs, APIs & SDKs, Data Visualizations Unique: Central Bank Watcher, Inflation Rates, Interest Rates, GDP, Unemployment Rates, Yield Curves, Real Yields | Shared: Data APIs, APIs & SDKs, Data Visualizations Unique: Stock Comparison |
Asset types Supported asset classes and universes | Bonds, Currencies, Other | Stocks, Bonds, Currencies, Cryptos, Other |
Experience levels Who each product is built for | Beginner, Intermediate, Advanced | Intermediate, Advanced |
Platforms Where you can access the product | Web, API | Web, API |
Pricing High-level pricing models | Free | Subscription, Other |
Key features Core capabilities called out by each vendor | Unique
| Unique
|
Tested Verified by hands-on testing inside Find My Moat | Not yet | Not yet |
Editor pick Featured inside curated shortlists | Standard listing | Standard listing |
Frequently Asked Questions
Which workflows do ECB Data Portal and Relative Rotation Graphs® (RRG Research) both support?
Both platforms cover Data APIs, APIs & SDKs, and Data Visualizations workflows, so you can research those use cases in either tool before digging into the feature differences below.
Which tool offers a free plan?
ECB Data Portal offers a free entry point, while Relative Rotation Graphs® (RRG Research) requires a paid subscription. Review the pricing table to see how the paid tiers compare.
How can you access ECB Data Portal and Relative Rotation Graphs® (RRG Research)?
Both ECB Data Portal and Relative Rotation Graphs® (RRG Research) 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?
ECB Data Portal differentiates itself with Open SDMX 2.1 REST API with discovery & retrieval modes; single entry point at data-api.ecb.europa.eu/service/ and rich query parameters (e.g., startPeriod/endPeriod, updatedAfter, includeHistory, detail, firstNObservations/lastNObservations)., Format flexibility via content negotiation and the `format` query param: SDMX‑JSON, CSV, and SDMX‑ML (structure‑specific and generic)., and Interactive portal with export of data (CSV, XLS long/wide, SDMX) and export of visuals (PNG, PDF, PowerPoint)., whereas Relative Rotation Graphs® (RRG Research) stands out for Relative Rotation Graphs® (RRGs®) visualize trends in relative strength/performance of multiple securities in a universe versus a common benchmark (and each other)., RRGs are described by the vendor as applicable across asset classes (e.g., stock indexes, stock sectors, individual stocks, bonds, (crypto)-currencies, and asset allocation)., and RRG Online: vendor-run web implementation built in cooperation with Optuma, positioned as a "lightweight" version with limited functionality and pre-defined universes..
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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.