A system is never done and always has to be checking their development and their behavior under different market scenarios that may occur.

In the following, we will see a system tested and what parameters must be taken into account before putting it into practice with real money.

The potential offered by computers and software programs available if any idea or system can be tested without risking even one euro cent. However, the results obtained and tested only guarantee the fairness of the system until the present moment, since we cannot guarantee its efficacy from its use in the real market. Despite this, a system that has proved its validity and robustness in different market situations will provide positive results for investors.

Not normally have a single method, but it will work with several alternatives, often simultaneously, using in each case, which is showing better performance in accordance with the present situation.

To test the system we can determine the periods within which is effective, what indicators interact and work best with it, the interaction of different variables on the risk-benefit, carry out sensitivity analysis of the variables. For this, the system must be designed and built from the outset to provide uniform information on several aspects, in order to be evaluated and compared and based on it to determine its usefulness.

The Bolsa de Valores de Lima (BVL) showed negative indicators at the close of Thursday’s session, before the downward correction by metals prices abroad.
The General Index of the BVL, the most representative of the local bourse, fell 0.14 percent today, going from 14.250 to 14.231 points.

The Selective Index of the Lima stock market, which consists of the 15 most traded shares on the market, fell 0.18 percent, going from 22.340 to 22.300 points.

The National Capital Index (INCA), comprised of the 20 most liquid shares listed on the BVL, depreciated 0.65 percent.

In today’s meeting the amount negotiated in shares stood at 14.24 million new soles in 937 transactions for the purchase and sale.

Among the main actions that showed a negative trend in the LSE include the Maple (2.06 percent), El Brocal (-2.60 percent), Perubar (-4.70 percent) and Raura (-2.70 percent).

Provalor analyst stock brokerage firm (SAB), Edwin Paz, said the LSE was particularly affected by the actions of services, number and banking fell 0.46, 0.56 and 0.21 percent respectively.

The BVL behaved in line with the downward correction in prices of metals on the outside and follow closely the volatility of U.S. stock markets, said
He noted that eventually the U.S. markets ended higher figures due to better than
expected from that country’s trade balance and unemployment weekly requests
also positive.

However, he said investors are awaiting more economic data this Friday, as nonfarm payrolls that have to do with the performance level of employment in that country.

Regional exchanges closed mixed, while the indicators of the Stock Exchange of New York (NYSE) had favorable indicators.

The Dow Jones industrial index of the NYSE showed a rise of 0.46 percent, while the Nasdaq and Standard & Poor’s index advanced 0.51 and 0.37 percent respectively. Andina.