US Tech Treemap: Live Market Cap and Performance by Timeframe
An interactive treemap visualizes US tech equities above ~$10B, with rectangle size reflecting live market cap. Performance overlays can be viewed across multiple timeframes from 1-day to 5-year. Users can toggle between Treemap and Table views for different presentations of the same data.
Key Points
- Rectangle area encodes live market capitalization for US tech equities over approximately $10B.
- Performance overlays show how stocks have moved over selectable timeframes.
- Time horizons include 1-day, 1-week, 1-month, 3-month, YTD, 1-year, and 5-year.
- Two display modes are available: Treemap and Table.
- The focus is on providing a real-time snapshot of large-cap US tech stocks.
Sentiment
The Hacker News community is broadly positive about the tool itself, praising its visual clarity and the usefulness of selectable timeframes. However, the discussion quickly pivots to debating what qualifies as a "tech company" and whether the tool's categorization choices are sound. There is also significant skepticism about short-term market views in general, with commenters divided on whether tools like this encourage speculation or serve legitimate analytical purposes.
In Agreement
- The tool provides a clean, instantly legible way to visually assess the tech market at a glance
- Having selectable timeframe ranges is a valuable feature that even major financial platforms like Fidelity fail to offer
- The treemap format effectively communicates relative market positions and daily movements
- The tool fills a genuine need as a clean, focused alternative to existing market visualization tools like finviz
Opposed
- The definition of "tech" is too loose — companies like Tesla, Uber, DoorDash, and Hims & Hers don't belong in a tech treemap
- Several notable companies are missing (Roblox, Atlassian), undermining the tool's completeness
- The 1-day default timeframe caters to short-term speculation rather than meaningful investment analysis
- The 5-year maximum range is too short for real investment analysis; 10+ year inflation-adjusted views would be far more useful