According to this theory, stock price movements are not dependant on any factors and so the historical movements should be not used as an indicator to predict the future growth.
Even if the investor does not want invest upfront a huge amount of money, they can still go for a EMI spread over an year for investment in Mutual Fund or Stock Investment options.
It pays to know about the working of the stock market and how the shares are traded, how (earnings per share) EPS is calculated, how NAV (net asset value ) of your Investment is calculated.