{
 "meta": {
  "title": "BRAIAIN Buildout Index",
  "units": "USD millions; index Q1 2022 = 100",
  "definition": "Big-4 total capital expenditure (as filed; Meta incl. finance-lease principal; Amazon gross; MSFT/GOOGL cash purchases of PP&E) plus NVIDIA data-center segment revenue (fiscal quarter mapped to nearest calendar quarter, ~1 month offset). Components overlap: chips the big 4 buy from NVIDIA appear in both.",
  "sources": "SEC filings and company earnings releases; full list at braiain.com/methodology.html",
  "license": "Compiled data CC BY 4.0 (underlying filings are public records)",
  "as_of": "2026-10-20"
 },
 "columns": [
  "quarter",
  "msft_capex_musd",
  "googl_capex_musd",
  "amzn_capex_musd",
  "meta_capex_musd",
  "nvda_dc_revenue_musd",
  "combined_flow_musd",
  "index_q1_2022_eq_100"
 ],
 "rows": [
  [
   "2022Q1",
   5340,
   9786,
   14951,
   5548,
   3750,
   39375,
   100.0
  ],
  [
   "2022Q2",
   6871,
   6828,
   15724,
   7747,
   3806,
   40976,
   104.1
  ],
  [
   "2022Q3",
   6283,
   7276,
   16378,
   9518,
   3833,
   43288,
   109.9
  ],
  [
   "2022Q4",
   6274,
   7595,
   16592,
   9223,
   3616,
   43300,
   110.0
  ],
  [
   "2023Q1",
   6607,
   6289,
   14207,
   7087,
   4284,
   38474,
   97.7
  ],
  [
   "2023Q2",
   8943,
   6888,
   11455,
   6354,
   10323,
   43963,
   111.7
  ],
  [
   "2023Q3",
   9917,
   8055,
   12479,
   6763,
   14514,
   51728,
   131.4
  ],
  [
   "2023Q4",
   9735,
   11019,
   14588,
   7899,
   18404,
   61645,
   156.6
  ],
  [
   "2024Q1",
   10952,
   12012,
   14925,
   6715,
   22563,
   67167,
   170.6
  ],
  [
   "2024Q2",
   13873,
   13186,
   17620,
   8472,
   26272,
   79423,
   201.7
  ],
  [
   "2024Q3",
   14923,
   13061,
   22620,
   9202,
   30771,
   90577,
   230.0
  ],
  [
   "2024Q4",
   15804,
   14276,
   27834,
   14836,
   35580,
   108330,
   275.1
  ],
  [
   "2025Q1",
   16745,
   17197,
   25019,
   13692,
   39112,
   111765,
   283.8
  ],
  [
   "2025Q2",
   17079,
   22446,
   32183,
   17012,
   41096,
   129816,
   329.7
  ],
  [
   "2025Q3",
   19394,
   23953,
   35095,
   19370,
   51200,
   149012,
   378.4
  ],
  [
   "2025Q4",
   29876,
   27851,
   39522,
   22140,
   62300,
   181689,
   461.4
  ],
  [
   "2026Q1",
   30876,
   35674,
   44203,
   19840,
   75200,
   205793,
   522.6
  ],
  [
   "2026Q2",
   35802,
   44924,
   54208,
   31080,
   89000,
   255014,
   647.7
  ]
 ]
}