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

Last week IRS had an overall loss of -0.19%, the stock price moved from 15.58 to 15.55, last week's high was 15.91, the low was 15.00, and the cumulative volume was 913.93K.

● IRS reached a 52-week high last week on 19 December, quoting 15.55.