We have found the following stocks had unusual volume spikes on Thursday, June 28, 2012.
Tenet Healthcare Corp. (NYSE:THC) had a 86.9% volume spike trading 40,717,900 shares. THC's 30-day average volume is 5,335,410. Shares closed at $5.25 +6.71%. Tenet Healthcare Corporation is an investor-owned health care services company whose subsidiaries and affiliates mainly operate acute care hospitals, ambulatory surgery centers, diagnostic imaging centers and related health care facilities.
Health Management Associates (NYSE:HMA) had a 86.1% volume spike trading 24,950,900 shares. HMA's 30-day average volume is 3,461,860. Shares closed at $7.49 +11.79%. Health Management Associates, Inc and its subsidiariesprovide health care services to patients in owned and leased facilities located mainly in non-urban communities in the southeastern and southwestern United States.
Orexigen Therapeutics (NASDAQ:OREX) had a 95.6% volume spike trading 22,471,398 shares. OREX's 30-day average volume is 995,295. Shares closed at $5.90 +19.92%. A biopharmaceutical company focused on the development of pharmaceutical product candidates for the treatment of obesity.
Hca Holdings Inc. Common Stock (NYSE:HCA) had a 89.6% volume spike trading 20,118,200 shares. HCA's 30-day average volume is 2,088,680. Shares closed at $29.47 +12.52%.
Lincare Holdings Inc. (NASDAQ:LNCR) had a 92.2% volume spike trading 10,787,414 shares. LNCR's 30-day average volume is 838,400. Shares closed at $32.30 +3.63%. Lincare Holdings Inc. together with its subsidiaries is a provider of oxygen and other respiratory therapy services to patients in the home.
Community Health Systems (NYSE:CYH) had a 86.4% volume spike trading 8,525,600 shares. CYH's 30-day average volume is 1,158,390. Shares closed at $27.54 +10.03%. Community Health Systems Inc. provides healthcare services through the hospitals that it owns and operates in non-urban and selected urban markets throughout the United States.
Hms Holdings Corp (NASDAQ:HMSY) had a 81.4% volume spike trading 6,149,700 shares. HMSY's 30-day average volume is 1,144,500. Shares closed at $31.75 +14.25%. HMS Holdings Corporation provides a variety of cost containment and payment accuracy services relating to government healthcare programs.
Universal Health Services (NYSE:UHS) had a 85.6% volume spike trading 5,532,000 shares. UHS's 30-day average volume is 798,895. Shares closed at $42.60 +8.78%. Universal Health Services, Inc, through its subsidiaries is engaged in the business of owning and operating, acute care hospitals, behavioral health centers, surgical hospitals, ambulatory surgery centers and radiation oncology centers.
Centene Corp. (NYSE:CNC) had a 67.5% volume spike trading 5,341,600 shares. CNC's 30-day average volume is 1,733,860. Shares closed at $30.59 +0.92%. Centene Corporation is a multi-line healthcare enterprise operating in two segments: Medicaid Managed Care and Specialty Services.
Oriental Financial Group (NYSE:OFG) had a 95.5% volume spike trading 5,052,500 shares. OFG's 30-day average volume is 225,275. Shares closed at $11.02 +5.35%. Oriental Financial Group Inc. provides financial services such as mortgage, commercial and consumer lending, financial planning, insurance sales, money management and investment banking and brokerage services, as well as corporate & individuals.