One important metric to look for in a stock is an 80 or higher Relative Strength Rating. WillScot Mobile Mini just hit that mark, with a jump from 78 to 82 Wednesday.

When you're researching the best stocks to buy and watch, keep a close on eye on relative price strength.

IBD's proprietary rating measures share price performance with a 1 (worst) to 99 (best) score. The rating shows how a stock's price behavior over the last 52 weeks compares to all the other stocks in our database.

Over 100 years of market history shows that the market's biggest winners often have an 80 or better RS Rating in the early stages of their moves.

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WillScot Mobile Mini is working on a flat base with a 30.48 entry. See if it can break out in volume at least 40% higher than normal.

While EPS growth dropped in the company's most recently reported quarter to -33%, revenue rose 80%, up from 66% in the prior report.

WillScot Mobile Mini holds the No. 10 rank among its peers in the Commercial Services-Leasing industry group. Textainer,  CAI International and Rent-A-Center are also among the group's highest-rated stocks.