Recent content by london002

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    Time and Sales/Trade Aggregation Question

    I am circling around the time & sale reconstruction mechanism for options. This thread gave me insights to look into the CME rules. Thanks for that. What I am still not clear on is, how are trade relations built between different legs? What I am gathering is: rely on IV change, timestamp and...
  2. L

    IQFeed vs Polygon.io

    I started with a local machine, but am in the process of moving to AWS and use kinesis infrastructure. I will be fine using all options for about 500 US based companies (Daily time & sale data of about 10 million entries per my calculation, I don't really need quote prices as long as time&sale...
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    IQFeed vs Polygon.io

    So, regarding IQFeed, do they consider an Options ticker a symbol for streaming data? For example, TSLA200821C01500000, is considered a symbol? If so, the 500 symbols limit won't give me all options data for TSLA. What are other alternatives to retrieve all US based stocks & options "time &...
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    Digesting realtime tick data on a local machine

    Hello, ---- I started a new thread under "Trading Software", but found this to be more appropriate as there is discussion around development. I don't know how to remove the other discussion. ---- I have started looking into trade and time & sale data for equities with mixed results. My...
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    Digesting realtime tick data on a local machine

    Hello, I have started looking into trade and time & sale data for equities with mixed results. My problems seem technical in nature and hence sharing what I have and get feedback here. My setup: 8 core CPU, decent GPU, 16GB RAM, tons of SSD storage. Using python to digest incoming stream -...
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    Refinitiv Datascope - anyone have provisional costing?

    Does Polygon support real time time & sale for stocks & options? I am interested in a service that provides streaming data for US equities - stocks & options.
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