Quandl (Nasdaq Data Link) vs Refinitiv Eikon (2026) — Which Is Better?
Compare Quandl (Nasdaq Data Link) and Refinitiv Eikon — features, pricing, pros and cons.
Data below reflects each vendor's official docs at time of writing. Pricing, features, and account terms can change; check the source of truth on each provider's site. Methodology →
The Short Version
Higher Rated
Refinitiv Eikon (Retired) (4.5)
More Affordable
Quandl (Nasdaq Data Link) (Free)
Quandl (Nasdaq Data Link)
Nasdaq's financial data marketplace with 250+ datasets and a unified RESTful API covering stocks, options, futures, forex, and economic indicators.
Refinitiv Eikon (Retired)
Eikon was retired by LSEG on June 30, 2025 and replaced by LSEG Workspace. This guide explains the migration, current product and pricing process.
Data Coverage & Delivery Breakdown
| Feature | Quandl (Nasdaq Data Link) | Refinitiv Eikon (Retired) |
|---|---|---|
| Rating | ★ 4.1 | ★ 4.5 |
| Starting Price | Free | Free |
| Free Tier | Yes | No |
| Markets | stocks, options, futures, forex | stocks, options, futures, forex, crypto |
| AI Analysis | ✗ | ✓ |
| Backtesting | ✗ | ✗ |
| Paper Trading | ✗ | ✗ |
| Price Alerts | ✗ | ✓ |
| Mobile App | ✗ | ✓ |
| API Access | ✓ | ✓ |
| Social Features | ✗ | ✗ |
| Broker Integration | ✗ | ✓ |
| Custom Indicators | ✗ | ✓ |
| Automated Trading | ✗ | ✗ |
| Trade Journaling | ✗ | ✗ |
| Performance Analytics | ✗ | ✓ |
| Risk Management | ✗ | ✓ |
| News Feed | ✓ | ✓ |
| Education Content | ✗ | ✓ |
Market-Data Head-to-Head
Quandl and Refinitiv Eikon target fundamentally different traders. Quandl is an API-first data marketplace with 250+ datasets accessible through developer-friendly SDKs (Python, R, Ruby, Excel) and a free tier requiring no credit card. Refinitiv Eikon is a professional workstation at $1,800/month offering real-time data, Bloomberg-competitive analytics, and Reuters news integration. Quandl suits quantitative and retail traders building custom systems; Refinitiv serves institutional professionals needing integrated workflows and premium market intelligence.
Quandl's key advantage is its free tier with 40+ datasets and zero paywall—ideal for backtesting and learning, though premium dataset pricing becomes opaque at scale. Refinitiv's strength is breadth: real-time pricing, Datastream's 70+ years of historical data, Reuters newsflow, and Excel integration create an all-in-one platform. Its modern UI also outpaces Bloomberg Terminal, though feature gaps remain in some advanced analytics.
Choose Quandl for building algorithmic strategies, granular data pipeline control, and subscription-free exploration. Pick Refinitiv Eikon for institutional-grade real-time data, compliance infrastructure, and integrated research. At $1,800/month, Eikon is prohibitive for most retail traders but justified for sell-side analysts, hedge funds, and proprietary trading firms requiring professional-grade intelligence.
Quandl (Nasdaq Data Link): Pros & Cons
Pros
- + Backed by Nasdaq with institutional-grade data reliability and provenance
- + Unified API across 250+ datasets from diverse third-party providers
- + Generous free tier with ~40 datasets requiring no credit card
- + Strong SDK support for Python, R, Ruby, and Excel out of the box
- + Free data samples available before committing to premium dataset subscriptions
Cons
- - Premium dataset pricing is opaque — no standardized public price table
- - Purely API and developer-focused with no visual dashboard or charting UI
- - Individual dataset subscriptions can be costly for independent or retail traders
- - Free tier API rate limits are restrictive for high-frequency or bulk data needs
Refinitiv Eikon (Retired): Pros & Cons
Pros
- + Modern successor to Eikon with desktop, browser and iOS access
- + Exclusive Reuters News plus professional data workflows
- + Workspace APIs and updated Office integrations
- + Customizable institutional research and trading workflows
Cons
- - No transparent public list price
- - Not designed or priced for ordinary retail traders
- - Legacy Eikon COM and .NET workflows may require migration work
- - Data and exchange entitlements can make quotes difficult to compare