Tronox had its Relative Strength (RS) Rating upgraded from 87 to 93 Tuesday.

As you try to find the best stocks to buy and watch, be sure to pay attention to relative price strength. This exclusive rating from Investor's Business Daily tracks market leadership with a 1 (worst) to 99 (best) score. The rating shows how a stock's price movement over the last 52 weeks compares to all the other stocks in our database.

Decades of market research reveals that the market's biggest winners typically have an RS Rating north of 80 at the beginning of a new price run.

Looking For Winning Stocks? Try This Simple Routine

Tronox is within a buy zone after moving past a 22.32 entry in a cup with handle. The proper buying range is up to 5% above the initial entry. Once a stock hits that benchmark, it's best to hold off investing and wait for it to set up another buying opportunity..

Taking a look at revenue and profit performance, the company has posted four quarters of increasing earnings growth. Revenue gains have also risen over the same time frame.

Tronox earns the No. 1 rank among its peers in the Chemicals-Specialty industry group. Element Solutions and C S W Industrials are also among the group's highest-rated stocks.