Feb 27, 2017 · The Beginner’s Guide to the Philippine Stock Market That’s why most financial advisers recommend investing in the stock market for long term – that’s 10 years or more. It’s also important to make sure that you buy stocks from good and stable companies. After all, you will be sharing in the profit or loss of those companies. Tara, Mag Stock Market Tayo! - Stock Market Investing Tutorial: Stock Market 101 - How much to invest in the stock market monthly, Law of 100 (100 - your age = Percent of the money that you can invest, which you will place in the stock market), Rule of 72 (72 divided by the interest rate = number of years to double your investment).