u/ProjectNo5641 ·
Reddit — r/algotrading
· July 22, 2026 at 16:29
· ⬆ 34 pts
· 💬 24 comments
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Summary
The post compares various financial data providers (London Strategic Edge, Databento, Alpaca, etc.) for algorithmic trading.
Author ranks them by cost, data depth (Level 3, tick data), and asset coverage, aiming to help traders choose a provider.
The content is a personal opinion from an undergraduate student, not a research-driven analysis with tradeable insights.
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Since my last tier list did so well I though I'd make a part 2. Just to preface this is my own personal opinions from data providers I have used, I am an undergraduate economics student at Cambridge looking to break into Quant Research next year no need to grill me in the comments below.
**London Strateigc Edge**: Tickdata for all US stocks and options+ economic data for all countries **FOR FREE** just a massive archive of data. Everyone gets an api key with 50gb of data usage +100 websocket connections. Unfortunately no level 3 data which makes sense as exchanges charge per user who views the data.
**Databento:** If you need **Level 3 data** this is your place to go, all US exchanges covered + EUREX unfortunately in the 200usd plan live web sockets for l3 data not included. free $125usd credit for signup too
**Alpaca:** $100 for access to all US Exchanges for stocks and options data, includes websocket connections for all stocks and options definitely the **best price option out of all the paid providers** for websocket connections.
**Massive:** Biggest archive of historical data for US exchanges 20+ years, offers **alternative data** like credit card reports. Extremely easy to download the data. Free plan is meh.
**FMP :** Access to different exchanges like LSE, EUREX and other niche providers but low quantity of historical tick data.
**Rithmic:** API service offered through brokers like AMP futures, best price for **level 3 futures data** but slightly more complex to setup straight out of the box.
**Yahoo Finance: Free historical data** for a wide range of assets but London strategic edge providers more detailed data.
**Tiingo: $30 USD for all US exchanges data**, unfortunately 30gb bandwidth limit.
**EODHD + Alpha vantage + Finnhub:** intuitive api to use but just use alpaca + FMP for the same data but a lot cheaper