If you're invested in the stock market via a 401(k) or a stock index fund, you may own shares in a company that manufactures assault weapons, including the AR-15in Parkland, Florida, last week.
"All those index funds that you might have through your 401(k), your broker, whatever -- you actually own gunmakers potentially through these index funds," Rob Cox, Reuters BreakingViews columnist told CBSN in an interview.
Cox pointed out that even owning an fund that tracks the Russell 2000 small-cap index could mean you're invested in companies like Smith & Wesson, owned by American Outdoor Brands (AOBC), or Vista (VSTO), which manufacture various types of guns.
He said investors should first understand what they may own and, if they're uncomfortable with their investments, contact the fund's manager and say, "Look, I'm concerned. I want to make sure that my investments aren't going to support financially companies that make products I don't agree with."