duedillyio

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   Show HN: Copystock – Replicating Single Stocks with ETFs(copystock.xyz)

   4 points by duedillyio 2y ago|0 comments
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   by duedillyio 5y ago

   Truly. There's some standard approaches like beta-adjusting that can be done to put things on equal footing in different market regimes but it's only one part of what determines a stock's performance. Testing for the signific
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   by duedillyio 5y ago

   This is a bit like a popular hedge fund strategy known as alpha capture. In the alpha capture strategy, funds look at the buy/sell recommendations made by analysts (for example those at the major banks). Applying a systematic approach
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   by duedillyio 5y ago

   Whoops, that's definitely a mistake. Need to backfill the split adjusted prices from the data vendor, good catch! Thanks a lot.
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   by duedillyio 5y ago

   I did consider beta adjusting performance and may do this in the future -- it does require more infra set up (ex. computing historical betas for these posts back in time). Since my target demographic in this case was people on Reddit follow
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   by duedillyio 5y ago

   I've been in the industry for several years and had the same reaction when I first starting seeing wallstreetbets posts. For a while I even thought it stood for "double down" when it seemed like these were encouraging posts.
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   by duedillyio 5y ago

   So 99% of DDs are long and I didn't want to get sidetracked trying to build a guessing system since many Reddit posts delete their contents (the titles are not removable which helps me). For that reason I auto-classify as bullish but t
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   by duedillyio 5y ago

   I consider 1 week, 1 month, and 1 year horizons and report all 3. For people pushing things around you expect to see it more on these short/medium term horizons. example: https://duedilly.io/asset/SAVA/
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   by duedillyio 5y ago

   So this is a quick hack -- I have a user registration system but I didn't want people parking on reddit usernames. For any user that gets scraped from Reddit I add a "r." in front of their username. The '.' characte
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    by duedillyio 5y ago

    Thanks! Yeah, I don't want to put anyone down with the worst traders page but worst stocks could be fun, especially if it's done as a way to bring people together around their losses and better inform themselves on what to look ou
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    by duedillyio 5y ago

    Thanks! For sure, having more history helps put things in context. There's several stocks you can see now where tons of people have bought after the top and lost a lot. Here's an example: https://duedilly.io/asset&
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    by duedillyio 5y ago

    Thanks! I know exactly what you mean. I've experimented with using medians instead of means for aggregating performance as well to lessen the impact of that sort of thing. Currently, it's pretty difficult to crack the top without
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    by duedillyio 5y ago

    I would like to open it up more generically to allow for sharing any ideas (like from not Reddit) -- the platform isn't tied to it. The big issue for me is accountability. People make public claims and delete the things that didn'
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    by duedillyio 5y ago

    Built my first "real" webapp to help retail traders figure out whether to trust the people posting trading ideas on Reddit. It links each post to its performance and lets you see the prior trading ideas suggested by each person. N
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    Show HN: Duedilly.io – Accuracy of Reddit Trading Ideas(duedilly.io)

    181 points by duedillyio 5y ago|85 comments