English to Portuguese Other Business/Commerce (general)

If you will examine a large collection of arithmetically scaled monthly charts covering 10 years or more of market history, you will quickly see that Bull Trends, in the great majority of actively traded, more or less speculative common stocks, tend to accelerate. They start slowly and push up at a steeper and steeper angle as they approach a Major Top. This up-curving path takes them farther and farther away from any straight trendline drawn from two Bottom points in the first, slow-moving stage of advance. As a consequence, they top out and have gone down a long way in a recession which may be of Major consequence before their straight trendline is again touched.