{"twin":"closelook.index-twin/1","id":"t1","cl_id":"cl:index:t1","name":"The T1 Index","description":"The Trillion Dollar Club — equal-weight, reset to 1/N on each $1T crossing, drift between","page":"https://closelook.net/indices/t1/","data_as_of":"2026-11-09","updated_at":"2026-11-10T06:44:21.615Z","generated_at":"2026-11-11T03:48:27.485Z","base":{"date":"2025-12-30","value":100,"currency":"USD"},"headline":{"code":"CL-T1","name":"The T1 Index","value":117.87,"members":18,"change_1d_pct":3.43,"change_1w_pct":-1.87,"change_1m_pct":-8.98,"change_ytd_pct":18.31,"change_since_base_pct":17.87},"variants":[{"code":"CL-T1","name":"The T1 Index","value":117.87,"members":18,"change_1d_pct":3.43,"change_1w_pct":-1.87,"change_1m_pct":-8.98,"change_ytd_pct":18.31,"change_since_base_pct":17.87}],"sub_indices":[],"tracked_names":{"count":18,"note":"Every stock that has ever closed at or above $1 trillion market cap; membership is permanent. Weights and returns per member are on the page.","list":[{"ticker":"NVDA","name":"Nvidia","member_since":"2025-12-30","founding":true},{"ticker":"AAPL","name":"Apple","member_since":"2025-12-30","founding":true},{"ticker":"MSFT","name":"Microsoft","member_since":"2025-12-30","founding":true},{"ticker":"GOOGL","name":"Alphabet","member_since":"2025-12-30","founding":true},{"ticker":"AMZN","name":"Amazon","member_since":"2025-12-30","founding":true},{"ticker":"META","name":"Meta Platforms","member_since":"2025-12-30","founding":true},{"ticker":"TSLA","name":"Tesla","member_since":"2025-12-30","founding":true},{"ticker":"AVGO","name":"Broadcom","member_since":"2025-12-30","founding":true},{"ticker":"TSM","name":"TSMC","member_since":"2025-12-30","founding":true},{"ticker":"BRK-B","name":"Berkshire Hathaway","member_since":"2026-11-04","founding":false},{"ticker":"LLY","name":"Eli Lilly","member_since":"2025-12-30","founding":true},{"ticker":"WMT","name":"Walmart","member_since":"2025-12-30","founding":true},{"ticker":"MU","name":"Micron","member_since":"2026-05-05","founding":false},{"ticker":"005930.KS","name":"Samsung Electronics","member_since":"2026-01-02","founding":false},{"ticker":"000660.KS","name":"SK Hynix","member_since":"2026-02-26","founding":false},{"ticker":"2222.SR","name":"Saudi Aramco","member_since":"2025-12-30","founding":true},{"ticker":"AMD","name":"AMD","member_since":"2026-09-21","founding":false},{"ticker":"SPCX","name":"SpaceX","member_since":"2026-06-12","founding":false}]},"units":{"value":"index points, USD total return","change_pct":"percent change, end of day","data_as_of":"last US trading day in the data"},"method":{"described_on":"https://closelook.net/indices/t1/","rule":"Equal-weight, reset to 1/N on each $1T crossing, drift between","last_rebalance":"2026-11-04"},"source":"closelook calculation from licensed end-of-day prices; Samsung, SK Hynix and Saudi Aramco converted to USD at the daily rate. No third-party prices are included in this twin.","license":{"attribution":"closelook.net","terms":"https://closelook.net/terms/","note":"Always attribute and link back to closelook.net."},"disclaimer":"Research data, not investment advice.","more":{"markdown":"Send Accept: text/markdown to the page URL for the full page as Markdown.","mcp":null,"brief":"POST https://closelook.net/api/agent/brief with {\"task\": \"…\"} — the whole task gets the free route and a quoted shortcut. Everything for agents: https://closelook.net/agent/"},"actions":[{"for":"cite","label":"Cite this page","access":"free","method":"GET","href":"https://closelook.net/indices/t1/","note":"Cite as \"The T1 Index — closelook.net, data as of 2026-11-09\" and link the page URL."},{"for":"read","label":"Compare all Closelooknet indices side by side","access":"free","method":"GET","href":"https://closelook.net/indices/compare/"}],"offers":[],"next_update":"after the next US market close"}