请问这句的后半句是什么意思?

问题描述:

请问这句的后半句是什么意思?
The country's top securities regulator said China's stock market is still healthy despite plunging share prices this year.
主要是“despite plunging share prices this year.”这一部分在句中的意思.

despite plunging share prices this year
尽管今年股票价格掉头往下(一直在跌).