The information of communication letter f 10 depends on the customized version of the broker. Different brokers have different f 10 providers, such as Hong Kong and Macao Information and Wesset Finance. Are you a regular version of Communication or a customized version of a brokerage firm?

For large securities firms (such as China Merchants Securities), their f 10 will be more complete and updated faster. You can ask your account broker. If you haven't opened an account yet, you can use the customized address book of Sina Finance. F 10 is provided by Wesset Finance and belongs to the mainstream data provider at present. And download it for free, as well as stock index futures (many versions can't be converted into stock index futures in time). It can be downloaded from the following Sina Finance Channel:

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Can bind the custom trading software of brokers, which is very easy to use.