C - What possible impact may a reverse split have on Citigroup's shares?

A reverse split usually is meaningless, it's a psychological factor. This does not change the value of your shares. If you own 1000 shares of Citigroup at $5.00, so worth $5000, you will just end up with 500 shares worth $10.00, still worth $5000. Some people think that if the value of C is raised artificially to $10.00 the shares won't seem as cheap as they did, especially if they bought some around let's say $3.00. They will have the impression that they bought more expensive shares than originally intended, and they may feel that they may have lost some potential upside. In reality, the supply will decrease from 54 billion shares outstanding to 27 billion, justifying the higher price. Now you may ask yourself, what is the purpose in doing a reverse split since it doesn't really change anything. The fact is that mutual funds are not allowed to hold stocks worth less than $5.00, and most don't even buy those worth less than $10.00, as they are considered too risky (closer to bankruptcy). In fact, I've made it a rule for myself to never buy stocks under $5.00, since the value of a stock represents its quality and stability rather than looking cheap and having more potential to rise. In fact a stock worth $5.00 or less is closer to $0.00, while the upside for any stock is unlimited. So it doesn't matter what the price of a stock is in terms of its potential to rise. It's no coincidence that Google is worth over $400, it has as much chance to go up 50% by the end of the year as any other stock, technically speaking. Personally I think seeing a reverse split for C may be a good thing, may raise buyer's interest, and C may be perceived to be as a higher quality stock than it is right now.