Weekly Report: what happened at CB last week (1222-1226)?

Last week CB had an overall gain of 1.33%, the stock price moved from 309.35 to 313.47, last week's high was 314.68, the low was 308.50, and the cumulative volume was 3.52M.

● CB reached a 52-week high last week on 26 December, quoting 313.47.