Weekly Report: what happened at RIO last week (1215-1219)?

Last week RIO had an overall gain of 3.61%, the stock price moved from 75.59 to 78.32, last week's high was 78.57, the low was 75.17, and the cumulative volume was 11.97M.

● RIO reached a 52-week high last week on 19 December, quoting 78.32.