like the rock bottom minimum no should, the minimum

Minimum would be one share at a cost of less than $0.01. But why would you buy one share of stock for a penny when the brokerage fees will cost you at the cheapest $4.00. You will have to set up an account. Will probably cost you $500 min to set up an accout. TD Ameritrade will open an account for $500. A full service broker will want more than $500. Tjhey would not execute such a purchase.