Investing in poultry stocks and Buddhism Peace !! 

I am planning to invest some of my money in poultry stocks in the stock market and having second thoughts. As I understand Buddhism teaches not to kill any living beings although it does not say directly not to eat meat even for monks or laymen. 

However , I don't think humans can survive without destroying other species . e.g. Even if you take water it has bacteria or micro creatures in it .

My intention is to make a profit , not kill animals . However I may have contributing to animal suffering by a proxy. I am in a grey area. Is this something morally wrong ?
Honestly I would say that it's not even a grey area. For me, investing in stocks in the meat industry is not in keeping with right livelihood. To quote the Vanijja Sutta in full


  "Monks, a lay follower should not engage in five types of business.
  Which five? Business in weapons, business in human beings, business in
  meat, business in intoxicants, and business in poison.
  
  "These are the five types of business that a lay follower should not
  engage in."


By investing in a poultry company you are in effect a part owner of that business - therefore you are in the 'business of meat'

Of course when you say poultry stocks I'm assuming that this is a business for producing meat for consumption. If the business is raising chickens so that small children can love them and keep them as pets then fantastic - a wonderful ethical investment (slight tongue in cheek - I couldn't resist).