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Show HN: Investorsexchange.jl – parse trade-level stock market data in Julia

136 点作者 lukemerrick超过 2 年前
Backstory:<p>I wanted to play with intraday stock data but couldn&#x27;t find a free dataset anywhere. IEXCloud [1] offers API access to 1-minute granularity intraday historical price data, but I was worried that it could get expensive or unwieldy to build up a substantial dataset via API calls. Plus, IEX gives out their raw data for free.<p>I probably should have just used the IEXTools python library [2] to parse IEX&#x27;s raw data dumps, but I was working on a Julia project, so it felt more thematically appropriate to build a new tool from scratch.<p>I haven&#x27;t been actively using InvestorsExchange.jl a lot lately, but it&#x27;s made me the proud owner of a 50GB SQLite DB dump covering several years of trade data, and I think it would be awesome if I could help folks in the HN community more quickly build up this kind of dataset for their own curiosity or research.<p>Feedback is also greatly appreciated!<p>[1] <a href="https:&#x2F;&#x2F;www.iexcloud.io&#x2F;docs&#x2F;api&#x2F;#historical-prices" rel="nofollow">https:&#x2F;&#x2F;www.iexcloud.io&#x2F;docs&#x2F;api&#x2F;#historical-prices</a><p>[2] <a href="https:&#x2F;&#x2F;github.com&#x2F;lvfrazao&#x2F;IEXTools" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;lvfrazao&#x2F;IEXTools</a>

9 条评论

nwah1超过 2 年前
Investor Sex Change?
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Wronnay超过 2 年前
One file has a size of nearly 5 GB... Every day two of these files get released... So nearly 10 GB every day.<p>So if we download the raw data every day for one year, we would have 3650 GB just for one year...<p>It would be interesting how much reduced the size of the processed data is compared to the raw data. You say that you have 50 GB of data spanning multiple years. How many years exactly?
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0xTJ超过 2 年前
It&#x27;s good that the actual file is InvestorsExchange.jl, because without the E capitalized, that&#x27;s definitely not how my brain parses it.
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igorkraw超过 2 年前
When you say they give out the raw data for free, does this mean you can download a batch of it? Or are you referring to the free API for the 5 years&#x2F;30 day data on the bèage you linked?
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littledev超过 2 年前
Reminds me of the time the company that owns BlackBerry decided to post some listings on the new-at-the-time .jobs TLD...
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codeaken超过 2 年前
When looking at the linked archives [1] it seems that they sit at around 4GB&#x2F;day. Is that really all of the data that the US stock market generates a day? I thought it would be at least 10x that.<p>[1] <a href="https:&#x2F;&#x2F;iextrading.com&#x2F;trading&#x2F;market-data&#x2F;" rel="nofollow">https:&#x2F;&#x2F;iextrading.com&#x2F;trading&#x2F;market-data&#x2F;</a>
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nathias超过 2 年前
amazing domain name
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crmd超过 2 年前
I want to see this pitch deck
throwaway787544超过 2 年前
I upvoted this just to keep the name on the front page longer.