NEW YORK ( TheStreet) - These stocks hit 52-week highs Tuesday: Synopsys ( SNPS), Landstar ( LSTR), Fair Isaac ( FICO) and Approach Resources ( AREX). Each of these stocks got a buy rating from TheStreet Ratings. Synopsys Core electronic design automation company Synopsys is scheduled to report its fiscal first-quarter results on Feb. 20. Analysts, on average, expect earnings of 52 cents a share on $416.53 million in revenue, according to Thomson Reuters data. Shares of Synopsys hit a 52-week high Tuesday of $29.53. The stock's 52-week low of $21.37 was set on Aug. 9. TheStreet Ratings gives Synopsys a B grade with a price target of $33.29. The stock has risen 7.24% so far in 2012.