Nasdaq Data Link vs Polygon.io (now Massive)
Head-to-head comparison of two trading data providers. Updated 2026-05-24.
Overall winner: Polygon.io (now Massive) — wins 1 of 6 comparison axes.
Side-by-Side Comparison
| Feature | Nasdaq Data Link | Polygon.io (now Massive) |
|---|---|---|
| API Quality | 3/5 | 4/5 ✓ |
| Doc Quality | 4/5 | 4/5 |
| Free Tier | Yes | Yes |
| Affiliate Program | No | No |
| Data Latency | daily | tick |
| SDK Languages | 5 languages | 5 languages |
| Asset Coverage | US Equities, Global Equities, Futures, Forex, Commodities, Alternative Data | US Equities, US Options, Forex, Crypto, Global Indices |
| Historical Depth | 50+ years on select datasets; varies widely | 2003–present (equities) |
| Starting Price | $0/mo | $0/mo |
| Rate Limits | Free: 50 calls/day; Premium: higher limits per dataset | Free: 5/min; Starter: 15/min; Developer+: unlimited |
Nasdaq Data Link: Best For
- Quant researchers
- Alternative data buyers
- Macro/fundamental analysts
- Academic researchers
Not Ideal For
- Real-time trading systems
- Tick data / HFT
- Crypto
- Intraday strategies
Polygon.io (now Massive): Best For
- Algo traders
- Fintech app developers
- Options traders
- Crypto quants
Not Ideal For
- Tick-level HFT (DBZ format not available)
- Institutional order book depth
More Comparisons
Nasdaq Data Link vs Databento Polygon.io (now Massive) vs Databento Nasdaq Data Link vs Alpaca Polygon.io (now Massive) vs Alpaca Nasdaq Data Link vs IEX Cloud (Discontinued) Polygon.io (now Massive) vs IEX Cloud (Discontinued) Nasdaq Data Link vs Finnhub Polygon.io (now Massive) vs Finnhub Nasdaq Data Link vs Alpha Vantage Polygon.io (now Massive) vs Alpha Vantage Nasdaq Data Link vs Twelve Data Polygon.io (now Massive) vs Twelve Data