How do people buy stocks which is hitting circuit limits?

If certain stock keeps hitting upper circuit limits then how do people get the shares? Do they just place the order and hope they get the shares?

Search around the forum, there are many threads similar to your question.

If you are interested in any such stock, BEWARE.

I think the main answer to this question is place order after market hours and if not place at 9:15:00. Everyone one has individual taste in trading stocks.