Weekly Report: what happened at AMSF last week (0817-0821)?

Last week AMSF had an overall loss of -5.52%, the stock price moved from 27.53 to 26.01, last week's high was 27.7450, the low was 25.65, and the cumulative volume was 2.24M.

● AMSF reached a 52-week down last week on 21 August, quoting 26.01.