You already own RRI stock by owning RRI's owner. REI owns 80% of RRI. REI has 297 mill shares outstanding and a market cap of 13.7 bill
RRI has 292 mill shares outstanding (80% held by REI) and a market cap of 10 bill.
I would guess that the market cap for REI includes the 8 bill worth of stock in RRI.
This means if RRI stock doubles in a year, its market cap becomes 20 bill and REIs market cap becomes 21.7 bill.
Here's a puzzle: One of the analysts covering REI has a 12 month price target of $11. I'm guessing he lives in California... High Target $63.00 Mean Target $43.08 Median Target $49.00 Low Target $11.30