Little help with hedging risk from BestBuy

[arsoisaen]

My friend works at BB and can purchase stock at a 15% discount. he has no clue about investing at all, so i try to give him the rundown about how everything works.

in the end basically 20% of his salary is going to BB stock at the discount, so I'm thinking since this is such a large allocation % wise we should just choose something exactly opposite to help him lower his risk..

which leads me to ask...what should he put his money in? take into consideration that he isn't a high net worth individual who has a ton of options in front of him.

thanks in advance