(Health care story updated for market close on Tuesday)

WASHINGTON D.C. (

TheStreet

) -- President Obama signed health care reform into law at a White House ceremony shortly before noon on Tuesday, but the photo op didn't help extend the recent rally in health care stocks.

President Obama

On Monday,

hospital operators and Medicaid-focused health care providers posted big gains, led by

Tenet Healthcare

(THC) - Get Report

,

Health Management Associates

(HMA)

,

Centene

(CNC) - Get Report

and

HMS Holdings

(HMSY) - Get Report

. Many health-care-related names set new 52-week highs.

During Tuesday's session -- even as Obama looked more relaxed than in recent weeks as he basked in his victory -- investors were taking some of the short-term froth off the sector's recent gains.

The Dow Jones U.S. Health Care Index was marginally positive (about 0.4%) on Tuesday.

Shares of

MedCath

( MDTH), which had rallied last week after an

analyst upgraded the hospital operator on news that it would sell off its hospital assets, suffered the largest decline Tuesday, falling 1.7% at the close on Tuesday, and after hours trading in MedCath shares was nearing a double digit decline on Tuesday.

Shares of Health Management, meanwhile finished slat on Tuesday, after big gains on Monday.

Community Health Systems

(CYH) - Get Report

finished down 1.9% on Tuesday, while

Lifepoint Hospitals

(LPNT)

was down marginally on Tuesday.

On Monday, Lifepoint, Community Health and

Universal Health Services

(UHS) - Get Report

all rose by about 6% and all touched 52-week highs intraday.

Among health care service providers, HMS Holdings saw its share prices slip 2.6% on Tuesday afternoon, while Centene, and

Amerigroup

( AGP) recovered after Tuesday morning declines to post marginally positive gains by the close on Tuesday.

JPMorgan indicated in note Monday that Amerigroup, Centene and

Molina Healthcare

(MOH) - Get Report

were among the Medicaid providers that would benefit from the reform effort becoming law. Molina shares fell 0.5% on Tuesday.

-- Reported by Eric Rosenbaum in New York

RELATED STORIES:

>>What's Your Health Care Reform Play?

>>Health Reform Winners: Hospitals, Medicaid

>>MedCath Rallies on Deutsche Upgrade

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