These are pretty good names inasmuch as they keywords sort of lend themselves to the "info" concept -- about the only situation where the .info TLD doesn't totally kill a domain.
If you look at sales records, almost any two-word .com with the word "income" or "shares" in it, even the most random, almost always sells over $1,000 and sometimes much more. There are deep markets for financial-related domains thanks to online marketing and the affiliate market for financial products, so I'd think you could get several hundred or even low four figures for income.info, and at least a couple hundred or more for shares.info.
The other two I'm not so sure about, but even some basic development on them could get you a decent sale of a turnkey site at Flippa.
Frank