Boustead出现Program Buy

今天早上到现在为止
只要盘面出现一笔交易
立刻(1秒后）出现另外一笔Buy Up
举例：
09:41:10 5k Sell down at 1.05
09:41:11 6k Buy up at 1.06

10:00:05 95k Sell down at 1.05
10:00:06 5k Buy up at 1.06

10:01:00 17k Sell down at 1.05
10:01:01 7k Buy up at 1.06

10:10:45 20k Sell down at 1.05
10:10:46 7k Buy up at 1.06

11:06:14 10k Sell down at 1.05
11:06:15 6k Buy up at 1.06

请问这是咋回事？
庄稼掩护出货？还是有强庄入主?
请大侠指教