{
  "id": "mercados-financieros",
  "canonicalUrl": "https://chrisbmma.com/mercados-financieros",
  "spanishUrl": "https://chrisbmma.com/mercados-financieros/es",
  "author": "Christopher",
  "updated": "2026-08-29",
  "cutoff": "2026-08-28T20:00:00.000Z",
  "groups": [
    {
      "heading": {"en": "Market data", "es": "Datos de mercado"},
      "items": [
        {"id": "S01", "title": "Yahoo Finance chart API", "url": "https://finance.yahoo.com/", "note": "Delayed prices, moving averages, and ETF sector proxies."},
        {"id": "S02", "title": "Cboe delayed SPY options", "url": "https://cdn.cboe.com/api/global/delayed_quotes/options/SPY.json", "note": "Put/call volume for SPY only. Context, not a total-market ratio."},
        {"id": "S03", "title": "Cboe VIX methodology", "url": "https://www.cboe.com/tradable_products/vix/", "note": "Implied volatility of S&P 500 options. Not a fear index by itself."}
      ]
    },
    {
      "heading": {"en": "Official macro", "es": "Macro oficial"},
      "items": [
        {"id": "S04", "title": "FRED", "url": "https://fred.stlouisfed.org/", "note": "SOFR, DFF, WALCL, TGA, ON RRP, M2, claims."},
        {"id": "S05", "title": "U.S. Treasury Fiscal Data", "url": "https://fiscaldata.treasury.gov/", "note": "Debt to the Penny and auction statistics."},
        {"id": "S06", "title": "Federal Reserve H.4.1", "url": "https://www.federalreserve.gov/releases/h41/", "note": "Fed balance sheet."},
        {"id": "S07", "title": "BLS CPI and employment", "url": "https://www.bls.gov/", "note": "Inflation and labor prints used as calendar context."},
        {"id": "S08", "title": "BEA GDP and income", "url": "https://www.bea.gov/", "note": "National accounts."},
        {"id": "S09", "title": "EIA energy", "url": "https://www.eia.gov/", "note": "Weekly energy context."}
      ]
    },
    {
      "heading": {"en": "How to read a panel", "es": "Cómo leer un panel"},
      "items": [
        {"id": "S10", "title": "asOf, cache, and delay", "url": "https://chrisbmma.com/mercados-financieros/snapshot.json", "note": "Classroom snapshot frozen after the 28 Aug 2026 U.S. close. Figures move."}
      ]
    }
  ]
}