We have 2 articles on "Stock Screener" so far. More coming soon!
Screen 50 stocks by ROIC, FCF Yield, and 3 other metrics yfinance cannot provide. Percentile-ranked composite score: Quality (60%) + Value (40%). One script, one API call, no signup.
Developer tutorials that ship working code. Each lab walks you through building a real financial tool with the MetricDuck API — from stock comparison tools to valuation alerts. Clone the repo, run the code, extend it for your own projects.
Meta's Family of Apps earns a 51.5% operating margin. Its ROIC is declining at -6.3 points per quarter. Both facts are true simultaneously. The gap between them reveals everything about the largest AI infrastructure bet in advertising history — and the accounting policies designed to make it look cheaper than it is.
A stock with a low PE looks cheap. But if ROIC is declining, you're buying a deteriorating business at a discount that keeps getting bigger. Stock Pulse compares any stock to its own 2-year baseline and diagnoses VALUE TRAP or OPPORTUNITY. One API call, no signup.
Five US-listed rare earth and critical minerals companies hold a combined ~$16 billion market cap. We computed cash runway, dilution velocity, and project funding gaps from their latest 10-Q XBRL data — then cross-referenced every government funding headline against what the SEC filings actually disclose. Key findings: NioCorp is 27% funded for the $1.14B Elk Creek Project with an EXIM timeline they 'cannot estimate.' Perpetua is 32% funded for a $2.2B project facing two federal lawsuits. NB shareholders have been diluted 210% from baseline. MP Materials is the only company with binding customer contracts and government price protection — but it's still burning $230M per year in free cash flow.
We computed ROIC from XBRL financial data for every NYSE-listed copper miner with processed filings. Freeport-McMoRan (FCX) — the world's largest publicly traded copper producer — earns the lowest return on invested capital at 9.2%, while Southern Copper (SCCO) generates 24.2% on half the revenue. The 10-K filings reveal why: FCX's Indonesia operations depend on $2.82/lb gold credits to achieve negative cash costs, while SCCO's $0.89/lb cost structure is built on vertical integration and 60-year mine lives.
Our analysis of 2,100+ SEC filers reveals that cost of revenue reporting in XBRL is even more fragmented than revenue. Only 38% of filers use the most common element (CostOfGoodsAndServicesSold), 36% have no standard COGS element at all, and ExxonMobil's $199.5 billion in crude oil purchases is invisible to standard extraction — producing a misleading 100% gross margin.