Siemens had its Relative Strength (RS) Rating upgraded from 65 to 71 Monday -- a welcome improvement, but still shy of the 80 or higher score you prefer to see.

When looking for the best stocks to buy and watch, one factor to watch closely is relative price strength.

IBD's unique rating tracks share price movement with a 1 (worst) to 99 (best) score. The rating shows how a stock's price behavior over the last 52 weeks holds up against all the other stocks in our database.

Over 100 years of market history reveals that the best stocks tend to have an RS Rating of over 80 as they launch their biggest climbs. See if Siemens can continue to show renewed price strength and clear that threshold.

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Siemens is building a cup without handle with an 88.27 entry. See if the stock can clear the breakout price in heavy volume.

While the company's bottom line growth fell in the company's most recent performance report from 61% to 52%, revenue rose 31%, up from 13% in the previous report.

Siemens earns the No. 1 rank among its peers in the Diversified Operations industry group.