The Citi losses are "write-downs" of bad past investments.
Income is the take from current operations.
A company can have a huge net loss, but if the stock price has already fallen because investors projected that loss months ago the strong income stream can still suggest to some investors that it remains a good investment so it goes up now.
The pricing of stocks in the stockmarket has little to do with past performance.....the past is already built in to the price. its all about guestimating future profits.
Take Google----it had already fallen about 40% from its highs because people feared its profit growth was slowing, so they projected a lower value. Yesterday Google announced its profit growth was great, so its price has now jumped over a hundred points in two days on hopes of continued future growth.
