{
  "title": "S&P 500 top 10 by market cap",
  "generatedAt": "2026-10-15T12:31:02Z",
  "asOfCalendar": "2026-10-15",
  "methodology": "At each 30 Jun / 31 Dec period end, rank known S&P 500 mega-cap issuers by estimated company market cap \u2248 Yahoo Finance current market cap \u00d7 (split-adjusted close on nearest prior trading day / latest adjusted close). One ticker per issuer (GOOGL, BRK-B). Candidate set covers issuers that appeared in independent top-10 year-end lists 2021\u20132026 plus a large-cap buffer. Not official S&P Dow Jones index weights \u2014 estimates for ranking only.",
  "sources": [
    {
      "label": "Yahoo Finance (market caps & adjusted prices via yfinance)",
      "url": "https://finance.yahoo.com/"
    },
    {
      "label": "Wikipedia \u2014 List of S&P 500 companies (membership context)",
      "url": "https://en.wikipedia.org/wiki/List_of_S%26P_500_companies"
    }
  ],
  "snapshots": [
    {
      "label": "30 Jun 2026",
      "periodEnd": "2026-06-30",
      "asOfTrading": "2026-06-30",
      "top10": [
        {
          "rank": 1,
          "ticker": "NVDA",
          "name": "NVIDIA",
          "marketCapUsdBn": 4826.2
        },
        {
          "rank": 2,
          "ticker": "GOOGL",
          "name": "Alphabet",
          "marketCapUsdBn": 4367.8
        },
        {
          "rank": 3,
          "ticker": "AAPL",
          "name": "Apple",
          "marketCapUsdBn": 4219.3
        },
        {
          "rank": 4,
          "ticker": "MSFT",
          "name": "Microsoft",
          "marketCapUsdBn": 2764.7
        },
        {
          "rank": 5,
          "ticker": "AMZN",
          "name": "Amazon",
          "marketCapUsdBn": 2570.8
        },
        {
          "rank": 6,
          "ticker": "AVGO",
          "name": "Broadcom",
          "marketCapUsdBn": 1800.0
        },
        {
          "rank": 7,
          "ticker": "TSLA",
          "name": "Tesla",
          "marketCapUsdBn": 1661.2
        },
        {
          "rank": 8,
          "ticker": "META",
          "name": "Meta Platforms",
          "marketCapUsdBn": 1433.9
        },
        {
          "rank": 9,
          "ticker": "MU",
          "name": "Micron Technology",
          "marketCapUsdBn": 1305.6
        },
        {
          "rank": 10,
          "ticker": "BRK-B",
          "name": "Berkshire Hathaway",
          "marketCapUsdBn": 1071.2
        }
      ]
    },
    {
      "label": "31 Dec 2025",
      "periodEnd": "2025-12-31",
      "asOfTrading": "2025-12-31",
      "top10": [
        {
          "rank": 1,
          "ticker": "NVDA",
          "name": "NVIDIA",
          "marketCapUsdBn": 4492.9
        },
        {
          "rank": 2,
          "ticker": "AAPL",
          "name": "Apple",
          "marketCapUsdBn": 3956.8
        },
        {
          "rank": 3,
          "ticker": "GOOGL",
          "name": "Alphabet",
          "marketCapUsdBn": 3820.5
        },
        {
          "rank": 4,
          "ticker": "MSFT",
          "name": "Microsoft",
          "marketCapUsdBn": 3568.5
        },
        {
          "rank": 5,
          "ticker": "AMZN",
          "name": "Amazon",
          "marketCapUsdBn": 2489.7
        },
        {
          "rank": 6,
          "ticker": "TSLA",
          "name": "Tesla",
          "marketCapUsdBn": 1776.2
        },
        {
          "rank": 7,
          "ticker": "META",
          "name": "Meta Platforms",
          "marketCapUsdBn": 1677.3
        },
        {
          "rank": 8,
          "ticker": "AVGO",
          "name": "Broadcom",
          "marketCapUsdBn": 1643.1
        },
        {
          "rank": 9,
          "ticker": "BRK-B",
          "name": "Berkshire Hathaway",
          "marketCapUsdBn": 1076.0
        },
        {
          "rank": 10,
          "ticker": "LLY",
          "name": "Eli Lilly",
          "marketCapUsdBn": 953.7
        }
      ]
    },
    {
      "label": "30 Jun 2025",
      "periodEnd": "2025-06-30",
      "asOfTrading": "2025-06-30",
      "top10": [
        {
          "rank": 1,
          "ticker": "NVDA",
          "name": "NVIDIA",
          "marketCapUsdBn": 3805.7
        },
        {
          "rank": 2,
          "ticker": "MSFT",
          "name": "Microsoft",
          "marketCapUsdBn": 3657.4
        },
        {
          "rank": 3,
          "ticker": "AAPL",
          "name": "Apple",
          "marketCapUsdBn": 2979.9
        },
        {
          "rank": 4,
          "ticker": "AMZN",
          "name": "Amazon",
          "marketCapUsdBn": 2366.4
        },
        {
          "rank": 5,
          "ticker": "GOOGL",
          "name": "Alphabet",
          "marketCapUsdBn": 2147.8
        },
        {
          "rank": 6,
          "ticker": "META",
          "name": "Meta Platforms",
          "marketCapUsdBn": 1872.7
        },
        {
          "rank": 7,
          "ticker": "AVGO",
          "name": "Broadcom",
          "marketCapUsdBn": 1303.9
        },
        {
          "rank": 8,
          "ticker": "TSLA",
          "name": "Tesla",
          "marketCapUsdBn": 1254.6
        },
        {
          "rank": 9,
          "ticker": "BRK-B",
          "name": "Berkshire Hathaway",
          "marketCapUsdBn": 1039.9
        },
        {
          "rank": 10,
          "ticker": "WMT",
          "name": "Walmart",
          "marketCapUsdBn": 767.5
        }
      ]
    },
    {
      "label": "31 Dec 2024",
      "periodEnd": "2024-12-31",
      "asOfTrading": "2024-12-31",
      "top10": [
        {
          "rank": 1,
          "ticker": "AAPL",
          "name": "Apple",
          "marketCapUsdBn": 3628.3
        },
        {
          "rank": 2,
          "ticker": "NVDA",
          "name": "NVIDIA",
          "marketCapUsdBn": 3234.2
        },
        {
          "rank": 3,
          "ticker": "MSFT",
          "name": "Microsoft",
          "marketCapUsdBn": 3087.4
        },
        {
          "rank": 4,
          "ticker": "AMZN",
          "name": "Amazon",
          "marketCapUsdBn": 2366.4
        },
        {
          "rank": 5,
          "ticker": "GOOGL",
          "name": "Alphabet",
          "marketCapUsdBn": 2301.6
        },
        {
          "rank": 6,
          "ticker": "TSLA",
          "name": "Tesla",
          "marketCapUsdBn": 1595.0
        },
        {
          "rank": 7,
          "ticker": "META",
          "name": "Meta Platforms",
          "marketCapUsdBn": 1483.1
        },
        {
          "rank": 8,
          "ticker": "AVGO",
          "name": "Broadcom",
          "marketCapUsdBn": 1090.8
        },
        {
          "rank": 9,
          "ticker": "BRK-B",
          "name": "Berkshire Hathaway",
          "marketCapUsdBn": 970.3
        },
        {
          "rank": 10,
          "ticker": "WMT",
          "name": "Walmart",
          "marketCapUsdBn": 705.5
        }
      ]
    },
    {
      "label": "30 Jun 2024",
      "periodEnd": "2024-06-30",
      "asOfTrading": "2024-06-28",
      "top10": [
        {
          "rank": 1,
          "ticker": "MSFT",
          "name": "Microsoft",
          "marketCapUsdBn": 3261.4
        },
        {
          "rank": 2,
          "ticker": "AAPL",
          "name": "Apple",
          "marketCapUsdBn": 3044.8
        },
        {
          "rank": 3,
          "ticker": "NVDA",
          "name": "NVIDIA",
          "marketCapUsdBn": 2974.9
        },
        {
          "rank": 4,
          "ticker": "GOOGL",
          "name": "Alphabet",
          "marketCapUsdBn": 2209.2
        },
        {
          "rank": 5,
          "ticker": "AMZN",
          "name": "Amazon",
          "marketCapUsdBn": 2084.5
        },
        {
          "rank": 6,
          "ticker": "META",
          "name": "Meta Platforms",
          "marketCapUsdBn": 1274.9
        },
        {
          "rank": 7,
          "ticker": "BRK-B",
          "name": "Berkshire Hathaway",
          "marketCapUsdBn": 870.8
        },
        {
          "rank": 8,
          "ticker": "LLY",
          "name": "Eli Lilly",
          "marketCapUsdBn": 795.1
        },
        {
          "rank": 9,
          "ticker": "TSLA",
          "name": "Tesla",
          "marketCapUsdBn": 781.5
        },
        {
          "rank": 10,
          "ticker": "AVGO",
          "name": "Broadcom",
          "marketCapUsdBn": 750.9
        }
      ]
    },
    {
      "label": "31 Dec 2023",
      "periodEnd": "2023-12-31",
      "asOfTrading": "2023-12-29",
      "top10": [
        {
          "rank": 1,
          "ticker": "AAPL",
          "name": "Apple",
          "marketCapUsdBn": 2776.0
        },
        {
          "rank": 2,
          "ticker": "MSFT",
          "name": "Microsoft",
          "marketCapUsdBn": 2733.9
        },
        {
          "rank": 3,
          "ticker": "GOOGL",
          "name": "Alphabet",
          "marketCapUsdBn": 1692.3
        },
        {
          "rank": 4,
          "ticker": "AMZN",
          "name": "Amazon",
          "marketCapUsdBn": 1638.9
        },
        {
          "rank": 5,
          "ticker": "NVDA",
          "name": "NVIDIA",
          "marketCapUsdBn": 1192.4
        },
        {
          "rank": 6,
          "ticker": "TSLA",
          "name": "Tesla",
          "marketCapUsdBn": 981.4
        },
        {
          "rank": 7,
          "ticker": "META",
          "name": "Meta Platforms",
          "marketCapUsdBn": 893.2
        },
        {
          "rank": 8,
          "ticker": "BRK-B",
          "name": "Berkshire Hathaway",
          "marketCapUsdBn": 763.5
        },
        {
          "rank": 9,
          "ticker": "AVGO",
          "name": "Broadcom",
          "marketCapUsdBn": 518.2
        },
        {
          "rank": 10,
          "ticker": "LLY",
          "name": "Eli Lilly",
          "marketCapUsdBn": 510.2
        }
      ]
    },
    {
      "label": "30 Jun 2023",
      "periodEnd": "2023-06-30",
      "asOfTrading": "2023-06-30",
      "top10": [
        {
          "rank": 1,
          "ticker": "AAPL",
          "name": "Apple",
          "marketCapUsdBn": 2789.3
        },
        {
          "rank": 2,
          "ticker": "MSFT",
          "name": "Microsoft",
          "marketCapUsdBn": 2465.6
        },
        {
          "rank": 3,
          "ticker": "GOOGL",
          "name": "Alphabet",
          "marketCapUsdBn": 1450.1
        },
        {
          "rank": 4,
          "ticker": "AMZN",
          "name": "Amazon",
          "marketCapUsdBn": 1406.1
        },
        {
          "rank": 5,
          "ticker": "TSLA",
          "name": "Tesla",
          "marketCapUsdBn": 1033.9
        },
        {
          "rank": 6,
          "ticker": "NVDA",
          "name": "NVIDIA",
          "marketCapUsdBn": 1018.3
        },
        {
          "rank": 7,
          "ticker": "BRK-B",
          "name": "Berkshire Hathaway",
          "marketCapUsdBn": 730.0
        },
        {
          "rank": 8,
          "ticker": "META",
          "name": "Meta Platforms",
          "marketCapUsdBn": 724.1
        },
        {
          "rank": 9,
          "ticker": "V",
          "name": "Visa",
          "marketCapUsdBn": 435.0
        },
        {
          "rank": 10,
          "ticker": "LLY",
          "name": "Eli Lilly",
          "marketCapUsdBn": 408.8
        }
      ]
    },
    {
      "label": "31 Dec 2022",
      "periodEnd": "2022-12-31",
      "asOfTrading": "2022-12-30",
      "top10": [
        {
          "rank": 1,
          "ticker": "AAPL",
          "name": "Apple",
          "marketCapUsdBn": 1863.0
        },
        {
          "rank": 2,
          "ticker": "MSFT",
          "name": "Microsoft",
          "marketCapUsdBn": 1728.2
        },
        {
          "rank": 3,
          "ticker": "GOOGL",
          "name": "Alphabet",
          "marketCapUsdBn": 1068.9
        },
        {
          "rank": 4,
          "ticker": "AMZN",
          "name": "Amazon",
          "marketCapUsdBn": 906.1
        },
        {
          "rank": 5,
          "ticker": "BRK-B",
          "name": "Berkshire Hathaway",
          "marketCapUsdBn": 661.3
        },
        {
          "rank": 6,
          "ticker": "TSLA",
          "name": "Tesla",
          "marketCapUsdBn": 486.5
        },
        {
          "rank": 7,
          "ticker": "UNH",
          "name": "UnitedHealth Group",
          "marketCapUsdBn": 441.8
        },
        {
          "rank": 8,
          "ticker": "XOM",
          "name": "Exxon Mobil",
          "marketCapUsdBn": 401.0
        },
        {
          "rank": 9,
          "ticker": "JNJ",
          "name": "Johnson & Johnson",
          "marketCapUsdBn": 382.4
        },
        {
          "rank": 10,
          "ticker": "V",
          "name": "Visa",
          "marketCapUsdBn": 379.0
        }
      ]
    },
    {
      "label": "30 Jun 2022",
      "periodEnd": "2022-06-30",
      "asOfTrading": "2022-06-30",
      "top10": [
        {
          "rank": 1,
          "ticker": "AAPL",
          "name": "Apple",
          "marketCapUsdBn": 1954.4
        },
        {
          "rank": 2,
          "ticker": "MSFT",
          "name": "Microsoft",
          "marketCapUsdBn": 1841.7
        },
        {
          "rank": 3,
          "ticker": "GOOGL",
          "name": "Alphabet",
          "marketCapUsdBn": 1320.0
        },
        {
          "rank": 4,
          "ticker": "AMZN",
          "name": "Amazon",
          "marketCapUsdBn": 1145.6
        },
        {
          "rank": 5,
          "ticker": "TSLA",
          "name": "Tesla",
          "marketCapUsdBn": 886.6
        },
        {
          "rank": 6,
          "ticker": "BRK-B",
          "name": "Berkshire Hathaway",
          "marketCapUsdBn": 584.5
        },
        {
          "rank": 7,
          "ticker": "UNH",
          "name": "UnitedHealth Group",
          "marketCapUsdBn": 425.3
        },
        {
          "rank": 8,
          "ticker": "META",
          "name": "Meta Platforms",
          "marketCapUsdBn": 406.9
        },
        {
          "rank": 9,
          "ticker": "JNJ",
          "name": "Johnson & Johnson",
          "marketCapUsdBn": 379.3
        },
        {
          "rank": 10,
          "ticker": "NVDA",
          "name": "NVIDIA",
          "marketCapUsdBn": 364.6
        }
      ]
    },
    {
      "label": "31 Dec 2021",
      "periodEnd": "2021-12-31",
      "asOfTrading": "2021-12-31",
      "top10": [
        {
          "rank": 1,
          "ticker": "AAPL",
          "name": "Apple",
          "marketCapUsdBn": 2531.4
        },
        {
          "rank": 2,
          "ticker": "MSFT",
          "name": "Microsoft",
          "marketCapUsdBn": 2401.2
        },
        {
          "rank": 3,
          "ticker": "AMZN",
          "name": "Amazon",
          "marketCapUsdBn": 1798.3
        },
        {
          "rank": 4,
          "ticker": "GOOGL",
          "name": "Alphabet",
          "marketCapUsdBn": 1754.8
        },
        {
          "rank": 5,
          "ticker": "TSLA",
          "name": "Tesla",
          "marketCapUsdBn": 1391.3
        },
        {
          "rank": 6,
          "ticker": "META",
          "name": "Meta Platforms",
          "marketCapUsdBn": 848.7
        },
        {
          "rank": 7,
          "ticker": "NVDA",
          "name": "NVIDIA",
          "marketCapUsdBn": 707.2
        },
        {
          "rank": 8,
          "ticker": "BRK-B",
          "name": "Berkshire Hathaway",
          "marketCapUsdBn": 640.1
        },
        {
          "rank": 9,
          "ticker": "UNH",
          "name": "UnitedHealth Group",
          "marketCapUsdBn": 413.1
        },
        {
          "rank": 10,
          "ticker": "V",
          "name": "Visa",
          "marketCapUsdBn": 392.4
        }
      ]
    }
  ]
}