eric@builds:~$ market-map --index sp500 --by sector --live

The S&P 500, live.

Every constituent as one bubble: sized by market cap, placed by today's return inside its sector. The bubbles move every 30 seconds while the market is open — public data, no hands, no keys.

connecting

Bubble area ∝ market cap (est. from index weight, anchored on three mega-caps' share counts — it sizes bubbles, it is not a quote). Returns are versus the previous close; the y-axis is clipped at +4% / −5%, outliers sit on the rail. Constituents and sectors: State Street SPDR holdings, refreshed daily. Prices: Yahoo Finance, refreshed every 30 s in market hours through this site's own cached endpoint. Not investment advice.