Christian investor, yeah right, and I am a Christian tax collector. Do you really think that the manipulation of money for personal gain is any way related to and/or sanctioned by Christianity?
Where is it forbidden? There were plenty of small businessmen in the bible. Are you saying that Josephs carpentry business would have been a sin if Joseph sold a small share of it in order to raise capital to buy some new tools? A share of stock is a share of a business.
First, and foremost...making a legit, ethical profit is not a sin.
And if one invest in companies who espouse Christian values, wouldn't one be helping the growth of that company & job security of it's employees?
I don't know, I've never manipulated any money, but good stewardship of the funds with which I've been entrusted, and planning for retirement in such a way that permits me to meet my needs and continue to support Christian ministries might be considered "related to" Christianity.