If you hold shares in the share market of Hong Kong under your own name...

You still have to apply for a Hk visit visa with these documents below:
1. application form ID 1003A affixed with a recent-taken photo
2. your passport that must have over 30 days validity on the day you leave Hk
3. proof of your financial standing, e.g. bank statements, savings accounts passbooks, tax receipts
4. round-trip air ticket
5. proof of the proposed leisure visit to Hong Kong, e.g. receipt of joining a package tour to Hong Kong, itinerary, etc.