FillStub
Options trading journal with tax worksheets and intervals
Details
- External ID
- 1249267
- Source
- PH
- Company
- —
- Product
- FillStub
- Website domain
- producthunt.com
- Launched
- Sept. 14, 2026
- Cohort
- —
- Upvotes
- 1
- Upvotes percentile
- 0.30815693820825313
- Tags
- Fintech, Investing
- Fetched at
- Sept. 15, 2026, 1:01 a.m.
- Updated at
- Sept. 15, 2026, 1:01 a.m.
Description
Rebuilds the true lifecycle of every option contract from your broker export: rolls, assignments into share lots, cash-settled index options. Section 1256 against Form 8949, and a confidence interval on every statistic.
Enrichment
- Theme
- financial intelligence and trading tools
- Vertical
- Fintech
- Function
- Analytics & BI
- Audience
- Prosumer
- AI stance
- Not AI
- Project type
- Commercial product
- Normalized one-liner
- trading journal and tax worksheet for options traders
- Manually corrected
- False
Could you build this?
Partial The UI and basic portfolio tracking are simple, but reliably reconstructing complex options lifecycles across diverse broker formats and handling Section 1256 vs. 8949 tax logic requires deep financial accounting rules.
What it would actually take: The stack would combine Next.js/FastAPI with a parsing pipeline for diverse broker CSV/OFX formats. The hard piece is the deterministic trade reconciliation engine that models complex multi-leg roll strategies, corporate actions, and IRS tax nuances (wash sales, Section 1256 mark-to-market), which requires specialized quantitative accounting and tax expertise.
Competitors
Other products that read as similar to this one — 75 launches clear the similarity bar, closest 8 shown.
Attention rank: #33 of 76 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 306 days after the earliest competitor.
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- Rewind by EarningsWatcher · ph · 2026-09-22 · 9 upvotes · similarity 0.40
Other launches for this product
- No other launches for this product.
Same idea, different domain
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