Here are the stock reports from five ambulatory surgery center companies for Jan. 22, 2015.
AmSurg
Open: $53.77
Previous close: $53.61
Market cap: $2.6 billion
Surgical Care Affiliates
Open: $31.84
Previous close: $31.53
Market cap: $1.2 billion
Tenet Healthcare
Open: $44.98
Previous close: $44.71
Market cap: $4.4 billion
HCA
Open: $69.52
Previous close: $69.27
Market cap: $29.3 billion
Northstar Healthcare
Open: $4.39
Previous close: $4.40
Market cap: $264.4 million