Weekly Report: what happened at SP500-55 last week (0928-1002)?

Last week SP500-55 had an overall gain of 0.79%, the stock price moved from 401.42 to 404.61, last week's high was 408.14, the low was 396.77, and the cumulative volume was 942.60M.

● SP500-55 reached a 52-week down last week on 2 October, quoting 404.61.