This study to analyze the importance of the purchase price
of shares in the financial result of a portifolio of investiments in
variable in the long term. This subject is
highlighted in the internet channels that produce content about
investiments and whose target audience is the small investor. The
Monte Carlo Method was used to estimate the average percentage
return ofsmall investor who follows the strategy of, once a
month and for a period of ten year,allocating capital in variable
income. The simulations were carried out based on the hsitorical
series of the Bovespa Index and the comparison metric adopted
wasthe maximum return for the period. In the simulation periods,
the difference between the average return and the maximum
return was less than 10% (equivalent to less than 1% per year)