Our story
Built for investors who read the
actual numbers
We built BriefStock because we were tired of paying $500 a year for research that didn't explain itself. Every BriefStock report shows every calculation, let alone sources.
“Stock research should show its work.”
Financial transparency isn't just a buzzword for us—it's the core architecture of our platform. Most institutional reports assume a price target without detailing the quantitative framework used to calculate it. We believe you can't trust a conclusion if you can't audit the premises.
Our “numbers-as-narrative” approach ensures that it is never abstract to make data. We use Python to perform the heavy quantitative lifting — running over 207 filing and contracting ratios — and use Claude AI strictly as a technical writer to explain those findings in plain English.
By separating the data calculation from the narrative generation, BriefStock provides a level of mathematical rigor that general AI tools simply cannot achieve. We don't just tell you what happened — we show you the code and the data source that proved it.
Real data, 3 sources
We pull authorised price data from Alpha Vantage, FMP, and Finnhub to ensure cross-verified accuracy across 10,000+ global stocks.
Python does the math
Every P/E ratio, DCF valuation, and liquidity metric is calculated in verified Python output. No creative maths, just pure algorithms.
Claude writes the brief
Claude processes the calculated metrics into clear, cited financial prose. It never invents numbers — it summarizes the maths as readable narrative.
3
Data sources
40+
Metrics
8
Sections
< 60s
Per report
Solo Founder
Founder & Builder
BriefStock was built by a single engineer who spent too many years staring at spreadsheets and wrestling with traditional research tools that pale in comparison to the average retail investor.
Operating Principles
Transparent by design
We show every formula, every metric behind the valuation. No black-box scores.
Research, not advice
We provide the data and the logic. But the decision are yours. Please read the disclaimer.
Your data is yours
We don't sell your portfolio data. We make money from subscriptions, not from selling your insights.
Priced for real people
BriefStock is not thousands. We keep our overhead low to keep your subscription affordable.
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