Weekly Report: what happened at IRS last week (1229-0102)?

Last week IRS had an overall gain of 4.33%, the stock price moved from 15.93 to 16.62, last week's high was 16.9694, the low was 15.82, and the cumulative volume was 465.94K.

● IRS reached a 52-week high last week on 2 January, quoting 16.62.