NEW YORK (

TheStreet

) -- These stocks hit 52-week highs Wednesday:

Select Comfort

(SCSS)

,

Continental Resources

(CLR) - Get Report

,

Total System Services

(TSS) - Get Report

and

Silicon Laboratories

(SLAB) - Get Report

.

Each of these stocks received a buy rating from

TheStreet Ratings

.

Select Comfort

The company creates and sells beds and related products.

Select Comfort announced earlier in January that it was launching a new memory foam mattress called "m7."

"While we note that this isn't the company's first memory foam product (p7 is currently available), its gel infused technology is a step forward in product innovation and demonstrates the company's efforts to increase ASP," Piper Jaffray analysts wrote on Jan. 13.

The Piper Jaffray analysts also noted the mattresses should be in stores by early February.

Shares of Select Comfort hit a 52-week high Wednesday of $24.86. The stock's 52-week low is $9.77.

Select Comfort gets a B- grade from

TheStreet Ratings

with a price target of

$31.36

. The stock has risen 13.79% year to date.

Continental Resources

Continental Resources is a crude oil and natural gas production and exploration company. The company said fourth-quarter production rose 57% from a year earlier. Output of 75,219 barrels of oil equivalent a day was 3% higher than the company's previous projection. It was also 2% higher than the expectations of analysts at Canaccord.

Shares of Continental Resources hit a 52-week high Wednesday of $80.37. The stock's 52-week low is $42.43.

TheStreet Ratings

gives Continental Resources an A- grade and a price target of

$95.32

. The stock has increased 18.84% year to date.

Total System Services

Total System Services is an electronic payment processor. It reported fourth-quarter earnings on Tuesday of

31 cents a share, an increase of more than 29%. Revenue rose 7.3% to $472.2 million

.

Total System also gave 2012 earnings guidance of between $1.26 and $1.28 a share. Analysts were anticipating profit of $1.27 a share.

"The FY12 outlook suggests that TSS has grown through itsheadwinds of the recent downturn, that its customer base is stable, and that it ispoised for moderate revenue growth with margin leverage," Oppenheimer analysts wrote in a report.

Shares of Total System hit a 52-week high Wednesday of $21.90. The stock's 52-week low is $15.80.

Total System gets an A- grade from

TheStreet Ratings

with a price target of

$25.74

. The stock has risen 11.91% year to date.

Silicon Laboratories

The semiconductor company reported fourth-quarter earnings of $12.8 million compared with $12.9 million a year earlier. Profit rose on a per-share basis to 29 cents a share from 28 cents. Adjusted earnings, excluding items, in the latest fourth quarter were 49 cents a share.

Revenue rose 13% to $126.7 million.

Silicon Laboratories said it anticipates that first-quarter revenue will be between $120 million and $125 million. This is a decrease of 1% to 5% sequentially, William Blair analysts wrote in a report.

Shares of Silicon Laboratories hit a 52-week high of $48.50 on Wednesday. The stock's 52-week low is $30.36.

Silicon Laboratories gets a B- grade from

TheStreet Ratings

and a price target of

$52.31

. The stock has increased 7.68% year to date.

-- Written by Alexandra Zendrian

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