Say what matters to you, get a diversified portfolio that reflects it
Details
- External ID
- 47691533
- Source
- HN
- Company
- —
- Product
- Say what matters to you, get a diversified portfolio that reflects it
- Website domain
- sylphfinance.com
- Launched
- April 8, 2026
- Cohort
- —
- Upvotes
- 5
- Upvotes percentile
- 0.11182519280205655
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:26 p.m.
- Updated at
- Sept. 7, 2026, 9:26 p.m.
Description
I built this after realizing my index fund owned companies I'd never choose to support, and there was no easy way to do anything about it. Sylph lets you specify what you want to avoid (and what you want to support), then generates a diversified portfolio of individual stocks based on your priorities. Working demo, no account needed — just try it. Still early and actively building, so feedback is very welcome.
Enrichment
- Theme
- indie hacker passion projects
- Vertical
- Fintech
- Function
- Vertical SaaS
- Audience
- B2C
- AI stance
- AI feature
- Project type
- Commercial product
- Normalized one-liner
- personalized investment portfolio based on values
- Manually corrected
- False
Could you build this?
Partial Creating the portfolio selection UI and filtering logic is accessible, but building a production-grade direct-indexing platform requires real-time financial market data feeds and portfolio optimization algorithms.
What it would actually take: A full production system requires integration with market data providers (e.g., FactSet, Refinitiv, or Polygon.io) for ESG and company revenue/classification data, paired with a quadratic programming optimizer (like cvxpy or proprietary risk models like Barra) to balance custom exclusions against benchmark tracking error. It also demands broker integration APIs (like Alpaca or DriveWealth) for fractional share execution and tax-loss harvesting.
Discussion
No comments on this launch.
Competitors
Other products that read as similar to this one — 143 launches clear the similarity bar, closest 8 shown.
Attention rank: #137 of 144 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 156 days after the earliest competitor.
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- Long-Term Index Investing · ph · 2026-09-22 · 1 upvotes · similarity 0.44
- StockWatchlist · ph · 2026-09-14 · 1 upvotes · similarity 0.44
- MillionZero Investment Portfolio Builder · ph · 2026-09-06 · 1 upvotes · similarity 0.43
- Quoliv - Learn Investing · ph · 2026-09-11 · 1 upvotes · similarity 0.43
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a vertical saas tool for Insurance yet.