Your edit indicates that you may not yet be ready to get heavily involved in investing. I say this because it seems you are not very familiar with foundational finance/investing concepts.
The returns that you are seeing as 'yearly' are just the reported earnings every 12 months, which all public companies must publish. Those 'returns' are not the same as the earnings of individual investors (which will be on the basis of dividends paid by the company [which are often annual, sometimes semi-annual, and sometimes quarterly], and by selling shares purchased previously.
Note that over 3 months time, investing in interest-earning investments [like bank deposits] will earn you something like 0.5%. Investing in the stock market will earn you something like 2% (but with generally higher risk than investing in something earning interest). If you expect to earn significant amounts of money in only 3 months, you will not be able to without taking on extreme levels of risk [risk as high as going to a casino].
Safe investing takes time - years. In the short term, the best thing you can do to earn money is by earning more [through a better job, or a second part-time job], or spending less [budget, pay down high interest debt, and spend less than you earn].
I highly recommend you look through this site for more budgeting questions on how to get control of your finances. If you feel that doesn't apply to you, I encourage you to do a lot more research on investing before you send your money somewhere - you could be taking on more risk than you realize, if you are not properly informed.