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

Last week PREF had an overall gain of 0.05%, the stock price moved from 19.07 to 19.08, last week's high was 19.1159, the low was 19.0437, and the cumulative volume was 964.30K.

● PREF reached a 52-week high last week on 19 December, quoting 19.08.