Weekly Report: what happened at SPGZ last week (0527-0531)?

Last week SPGZ had an overall loss of -0.59%, the stock price moved from 17000.00 to 16900.00, last week's high was 17000.00, the low was 16900.00, and the cumulative volume was 4.

● SPGZ reached a 52-week high last week on 2 August, quoting 16900.00.