text: which stock made you the most money?   hsbc, barclay's bank, ericson, carmax, arcadia, harmon and more.  what good can this answer be to you?  it makes no investing sense to buy past performers simply because they did well yesterday.  you don't know the people answering your question. you don't know their credentials.  you don't even know if they're honest.  please don't use any answer from yahoo answers to make an investment. it would be plain ignorant to do so.