Nancy is a CFP® professional who works as a stockbroker. Nancy has worked with her best client for five years. During this time the client typically calls Nancy to obtain an opinion about a particular stock or mutual fund. Earlier this week, the client called Nancy and asked her what she thought about a stock he was going to purchase. Nancy replied that she knew about the company and felt that the stock was undervalued and a good investment. The client then instructed Nancy to buy 500 shares of the stock in his account. Does Nancy have a fiduciary duty in this case?