The spectrum view visualizes the variety of stock performance within a group. The gradient is composed of the underlying stocks sized by market capitalization and ordered from top losers (red color) to top gainers (green color). In other words, this view answers the questions to what extent is a group "red" or "green". From the ticker overlay you can also see the performance of major stocks in given group.

All stocks are included in each group's spectrum. Ticker, however, is displayed only if stock's capitalization is relatively large within a group.