Treat clients fairly

If you just finished a report on XXX and you are changing from buy to sell.

You are about to send this report to all clients. but meanwhile in between a client calls and asks you to buy the stock of XXX.

What do you do? If you tell them you changed recommandation from buy to sell, is it fair to other clients?

never mind… sorry.

What’s the solution? I would think that he firm has this stock on te watchlist and the analyst could say that the co is about to release a report on this soon. Would you like to review it or go ahead right away?