This number refers to how close these five exchanges to the NBBO published by the SIPs. The main exchanges are missing from their list(Nasdaq, NYSE, Arca, bats/edge).99.95% accuracy isn't bad. I wonder if they account for splits, bankruptcies, etc.
Not via API.Www.webull.com with www.medvedtrader.com is free real-time stock data and charts. The charts are $20 a month.
The historical data you can get from multiple places, but getting real time streaming data for all symbols is not available for free. Actually, looks like they are limiting to only 15 symbols, which sucks.
- Each account can have up to one concurrent websocket connection.
- Trades, quotes and minute bars are supported.
- Subscription is limited to 30 channels at a time for trades and quotes (T. and Q.). This limit is temporary and we may support more channels in the future.
This number refers to how close these five exchanges to the NBBO published by the SIPs. The main exchanges are missing from their list(Nasdaq, NYSE, Arca, bats/edge).
Not via API.
I don’t think so, it’s tied to the account you have with them.Can you connect to multiple websockets using diff accts to get 1500 symbols
One must ask two questions:
- Why is it free? What is the product? You can get reliable and accurate stock data from Quandl. A top-tier feed could be $200/mo. What's the catch?
- 99.95% accuracy isn't bad. I wonder if they account for splits, bankruptcies, etc.
i went to quandl webpage, can not find information on its live market stream, no less 200$/month. does quandl offer api to level1 data for all US equity market?