菜单
Scraper de CompaniesMarketCap: rankings (marketcap, earnings, revenue, employees, ratios), stock history y ETF holdings. Sin API key.
用 Codex 或 Claude 帮你安装 复制这段 Prompt，粘贴到 Codex、Claude 或其他助手里，让它检查 Skill 页面并帮你完成安装。
基于 SOC 职业分类
History of Market (historyofmarket.com) — API publica con 88 datasets historicos de indices US desde 1871. S&P 500 (price, CAPE, EPS, drawdowns, changes, constituents), Nasdaq Composite/Nasdaq 100 (price, volatility, VXN, changes), Dow Jones, SOX/SMH, sector ETFs (XLK, XLF), Magnificent 7 y macro. Sin API key, CORS libre, CC BY 4.0.
API no oficial de Yahoo Finance: precios, históricos, fundamentales, opciones, noticias en JSON puro sin wrappers.
Construcción y optimización cuantitativa de portafolios: Markowitz (scipy.optimize + Monte Carlo), Black-Litterman (prior CAPM, views absolutas/relativas, posterior bayesiano), HRP/HERC/NCO (clustering jerárquico, risk parity, NCO con restricciones). Todo flat numpy + scipy, sin Riskfolio-Lib ni PyPortfolioOpt.
Trading API de Primary (Matba ROFEX): futuros, opciones, acciones, bonos. Órdenes, posiciones, cuenta, market data.
Academic backtesting framework for quantitative research. ~30 risk and performance ratios, 10 classes of indicators, event-driven engine with 6+ strategies, MPT optimizer, forward-looking simulation with Johnson SU + t-Copula, walk-forward CV, stress testing, fundamental analysis (Altman Z, Piotroski, DuPont). All flat Python + numpy.
Pricing completo de opciones europeas y americanas. 9 metodos: Black-Scholes, Binomial CRR, Trinomial, Monte Carlo (antithetic) + Longstaff-Schwartz, Bjerksund-Stensland 2002 / BAW (American closed-form), Heston 1993 (vol estocastica, sonrisa via Fourier), Bates 1996 (Heston + Merton jumps, crash risk), greeks (BS), implied vol, P(ITM) y P(Profit). Disenado para backtesting: cada funcion es flat Python vectorizado con numpy (sin abstracciones), usa math.erfc (no scipy). BS 2.4 us/op, BS2 3.6 us, Heston 400 us, Binomial N=500 5.6 ms. CLI con 15 modos mas validate y bench. Time complexity O(1) para todos los closed-form.
| name | companiesmarketcap |
| description | Scraper de CompaniesMarketCap: rankings (marketcap, earnings, revenue, employees, ratios), stock history y ETF holdings. Sin API key. |
| license | MIT |
Scraper de CompaniesMarketCap que extrae rankings financieros (market cap, earnings, revenue, employees, P/E, márgenes, activos, deuda, cash), marketcap histórico de stocks y ETF holdings.
Usa el sistema de CSV download nativo del sitio (?download=csv) — no requiere API key y es más mantenible que scrapear HTML.
pip install requests beautifulsoup4
| Script | Descripción |
|---|---|
| fetch_cmc.py | Script principal: rankings, stock history, ETF holdings |
# Ranking de market cap (default)
python scripts/fetch_cmc.py --rankings
# Ranking de earnings
python scripts/fetch_cmc.py --rankings --metric earnings
# Ranking de revenue (top 10)
python scripts/fetch_cmc.py --rankings --metric revenue --limit 10
# Stock marketcap histórico
python scripts/fetch_cmc.py --stock NVDA
python scripts/fetch_cmc.py --stock GGAL
# ETF holdings
python scripts/fetch_cmc.py --etf SPY --holdings
# Todo junto + output a JSON
python scripts/fetch_cmc.py --stock AAPL --rankings --output aapl_full.json
# Modo silencioso (solo JSON)
python scripts/fetch_cmc.py --rankings --metric earnings --limit 5 --quiet
| Flag | Data | Método | Detalle |
|---|---|---|---|
--rankings | Ranking list | CSV download | 12 métricas + ETFs, ~10,852 empresas |
--stock TICKER | Marketcap histórico | HTML | 28-31 años por stock |
--etf TICKER --holdings | ETF holdings | HTML | ~505 posiciones (SPY) |
--etf TICKER | ETF summary | HTML | Información del ETF |
--metric)| Métrica | Descripción |
|---|---|
marketcap (default) | Market Capitalization |
earnings | Earnings (TTM) |
revenue | Revenue (TTM) |
employees | Employee count |
pe_ratio | Price/Earnings ratio |
operating_margin | Operating margin (TTM) |
total_assets | Total assets |
net_assets | Net assets |
liabilities | Total liabilities |
debt | Total debt |
cash | Cash on hand |
pb_ratio | Price/Book ratio |
etfs | ETF market caps |
| Flag | Descripción |
|---|---|
--limit N | Limitar a N filas en rankings |
--output archivo.json | Guardar output a archivo |
--delay N | Delay entre requests (default: 2.0s) |
--quiet | Modo silencioso (solo JSON) |
El scraper resuelve automáticamente el slug de la URL a partir del nombre de la compañía en el CSV:
| Ticker | Nombre → Slug |
|---|---|
| NVDA | NVIDIA → nvidia |
| AAPL | Apple → apple |
| GGAL | Galicia Financial Group → galicia-financial-group |
| SPY | SPDR S&P 500 ETF → spdr-sp-500-etf |
| BRK-B | Berkshire Hathaway → berkshire-hathaway |
skills/companiesmarketcap/
├── SKILL.md # Este archivo
├── references/
│ └── REFERENCE.md # Documentación completa
└── scripts/
└── fetch_cmc.py # Script principal
📖 Documentación detallada: Consultá references/REFERENCE.md para la documentación exhaustiva de cada endpoint, columnas, ejemplos y consideraciones técnicas.