XQL, a query language for screening market data
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HN · launched Jul 30, 2026 · 5 upvotes (top 89%) · 0 views
Niche: stock and market analysis software · 355 launches, 43 in the last 7 days ▲ +5% · Explore this niche →
Category and tags
- Fintech
- Dev tools
- B2B
- Not AI
- Commercial product
Visit website ↗ Source listing ↗
More like this: all 355 launches in stock and market analysis software →
Could you build this?
Partial Creating the web UI and custom query parser/validator is straightforward, but running low-latency screener queries against multi-asset financial market datasets requires specialized streaming and time-series data infrastructure.
What it would actually take: A production version requires a dedicated time-series database (e.g., ClickHouse or TimescaleDB) continuously ingested from expensive market data feeds (crypto, forex, indices) via WebSockets. The query engine needs an AST parser (built with ANTLR or Tree-sitter) that translates XQL constructs into optimized SQL/vectorized operations over rolling windows (RSI, moving averages). The hard part is managing real-time data subscription costs, high-throughput calculation of technical indicators across thousands of tickers simultaneously, and sub-second screener execution.
Discussion
2 comments analyzed.
Competitors
Other products that read as similar to this one : 1588 launches clear the similarity bar, closest 8 shown.
Attention rank: #1433 of 1589 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 274 days after the earliest competitor.
- Forget Rigid Stock Screeners · hn · 2026-09-07 · 10 upvotes · similarity 0.66
- MarketAtlas · github · 2026-11-09 · 26 upvotes · similarity 0.62
- TLDR.Market · hn · 2025-12-22 · 5 upvotes · similarity 0.60
- eikos · github · 2026-09-23 · 25 upvotes · similarity 0.57
- Oddpool: The institutional data layer for prediction markets · yc · 2026-05-11 · 42 upvotes · similarity 0.57
- Financial Datasets: Stock market data for AI agents · yc · 2026-08-19 · 6 upvotes · similarity 0.57
- model-vs-market · github · 2026-10-07 · 10 upvotes · similarity 0.56
- Prophit · hn · 2025-12-06 · 5 upvotes · similarity 0.56
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