NEW YORK (TheStreet) -- RATINGS CHANGES

Affymetrix (AFFX) was upgraded at J.P. Morgan to neutral from underweight. Valuation call, based on a 12-month price target of $10, J.P. Morgan said.

Clearwater Paper(CLW) - Get Report was downgraded at RBC Capital to sector perform from outperform. Twelve-month price target is $79. Company is facing increased competition, RBC Capital said.

Costco(COST) - Get Report was downgraded at Deutsche Bank to hold from buy. Twelve-month price target is $142. Company is facing currency and gasoline headwinds, Deutsche Bank said.

Twenty-First Century Fox(FOXA) - Get Report was downgraded at FBR Capital Markets to market perform from outperform. Twelve-month price target is $36. Company is facing multiple growth headwinds, FBR Capital Markets said.

Hecla Mining(HL) - Get Report was upgraded to hold at TheStreet Ratings. You can view the full analysis from the report here: HL Ratings Report.

Macy's(M) - Get Report was downgraded at Morgan Stanley to equal-weight from overweight. Company was also cut from the "Best Ideas" list. Twelve-month price target is $70. Valuation call, as the stock has outperformed by 30% over the past three years, Morgan Stanley said.

MRC Global(MRC) - Get Report was downgraded at Wells Fargo to market perform from outperform. Estimates were also cut, given the company's exposure to lower oil prices, Wells Fargo said.

Navistar(NAV) - Get Report was downgraded at J.P. Morgan to underweight from overweight. Twelve-month price target is $28. Company may struggle to continue gaining market share, J.P. Morgan said.

Paccar(PCAR) - Get Report was upgraded at J.P. Morgan to overweight from neutral. Twelve-month price target is $70. Industry truck orders are running above expectations and the stock is down 13% from December highs, J.P. Morgan said.

Ralph Lauren(RL) - Get Report was downgraded at Deutsche Bank to hold from buy. Twelve-month price target is $136. Estimates were also cut, as the company is facing pressure outside of just currency translation, Deutsche Bank said.

Ralph Lauren was downgraded at Citigroup to neutral from buy. Valuation call, based on a 12-month price target of $145, Citigroup said.

Silicon Labs(SLAB) - Get Report was upgraded at Topeka Capital to buy from hold. Twelve-month price target is $54. Growth prospects are improving, Topeka Capital said.

Tiffany(TIF) - Get Report was downgraded to hold at TheStreet Ratings. You can view the full analysis from the report here: TIF Ratings Report.

Editor's note: To see analysts' stock comments and changes to price targets and earnings estimates, go to "Street Notes," which is available only to Real Money subscribers. To find out how to become a subscriber, please click here.

Follow TheStreet on Twitter and become a fan on Facebook.

This article was written by a staff member of TheStreet.