Offer your thoughts or opinion on the input financial query or topic using your financial background.

What's the difference, if any, between stock appreciation and compound interest?
If you mean, If I invest, say, $1000 in a stock that is growing at 5% per year, versus investing $1000 in an account that pays compound interest of 5% per year, how does the amount I have after 5 years compare? Then the answer is, They would be exactly the same.  As Kent Anderson says, "compound interest" simply means that as you accumulate interest, that for the next interest cycle, the amount that they pay interest on is based on the previous cycle balance PLUS the interest. For example, suppose you invest $1000 at 5% interest compounded annually. After one year you get 5% of $1000, or $50. You now have $1050. At the end of the second year, you get 5% of $1050 -- not 5% of the original $1000 -- or $52.50, so you now have $1102.50. Etc. Stocks tend to grow in the same way. But here's the big difference: If you get an interest-bearing account, the bank or investment company guarantees the interest rate. Unless they go bankrupt, you WILL get that percentage interest. But there is absolutely no guarantee when you buy stock. It may go up 5% this year, up 4% next year, and down 3% the year after. The company makes no promises about how much growth the stock will show. It may show a loss. It all depends on how well the company does.