On Thursday, Liberty Media Sr A LibSr earned an upgrade to its Relative Strength (RS) Rating, from 67 to 72.

When looking for the best stocks to buy and watch, one factor to watch closely is 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 trailing 52 weeks stacks up against all the other stocks in our database.

Decades of market research reveals that the market's biggest winners tend to have an 80 or better RS Rating in the early stages of their moves. See if Liberty Media Sr A LibSr can continue to show renewed price strength and hit that benchmark.

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While now is not an ideal time to jump in, see if the stock is able to establish and enter a buy zone in heavy trade.

Top and bottom line growth moved higher in the company's most recent quarter. Earnings were up 466%, compared to 0% in the prior report. Revenue increased from 5% to 15%.

Liberty Media Sr A LibSr holds the No. 11 rank among its peers in the Media-Diversified industry group. Graham and Liberty Broadband are also among the group's highest-rated stocks.