I’ve been building this completely vibe coded and I want blunt feedback from people before I keep pouring time into it. What it does: take any stock’s chart right now, find its closest historical analogs across ~10 years and ~19,000 stocks (matched by the actual shape, not just “that’s a bull flag”), and show you the distribution of what those analogs did over the next 1-10 trading days. So instead of “this looks bullish,” you get “here are a few hundred charts that genuinely looked like this, and here’s the real spread of what happened next.” Two things I tried hard to get right:
- It’s honest about uncertainty instead of selling you signals. It won’t say “this is a buy.” It gives you the range and the base rate. When it shows an 80% range, that range has actually contained the outcome ~80% of the time across a few hundred thousand checks - so the confidence is calibrated, not vibes.
- It’s fast and free to just try (no signup): chartlibrary.io . Type a ticker and you’ll see its analogs. There are two surfaces I think are genuinely cool too: the single closest historical “twin” of a stock’s chart right now, and a scan of stocks sitting at real 10-year extremes. What I’d actually love feedback on:
- Is this useful in your process, or just interesting?
- What’s missing that would make you reach for it on a real setup?
- Drop a ticker you’re watching and I’ll reply with what its historical analogs did. Genuinely just trying to figure out if I’m building something traders want or talking myself into it. Brutal feedback welcome. submitted by /u/ChartLibraryio
Originally posted by u/ChartLibraryio on r/ClaudeCode
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