you may also want to invest in some Chinese bank stocks, eg. 3988, 939, because the Chinese market has more growth potential. These bank stocks should be relatively stable.
If you're concerned, invest a small amount in it. Eg. 中國銀行股份有限公司 (3988.HK) is only $3.85 per share. you can buy 1000 shares and it would still be less than 5% of your overall investment.