Here is how five major, publicly traded gastroenterology companies fared in the stock market for the week of Oct. 16 to Oct. 20, 2017.
Note: This data was compiled using Google Finance.
1. Allergan Pharmaceuticals
Opened: $204.51 on Oct. 16
Peaked: $206.75 on Oct. 16
Closed: $188.19 on Oct. 20
Percent change between Oct. 16 and Oct. 20: -7.98 percent
2. Exact Sciences Corp.
Opened: $47.41 on Oct. 16
Peaked: $49.34 on Oct. 20
Closed: $49.15 on Oct. 20
Percent change between Oct. 16 and Oct. 20: 3.67 percent
3. Johnson & Johnson
Opened: $136.90 on Oct. 16
Peaked: $143.57 on Oct. 20
Closed: $142.38 on Oct. 20
Percent change between Oct. 16 and Oct. 20: 4 percent
4. Synergy Pharmaceuticals
Opened: $3.09 on Oct. 16
Peaked: $3.23 on Oct. 16
Closed: $2.81 on Oct. 20
Percent change between Oct. 16 and Oct. 20: -9.06 percent
5. Valeant Pharmaceuticals
Opened: $13.38 on Oct. 16
Peaked: $13.42 on Oct. 16
Closed: $12.16 on Oct. 20
Percent change between Oct. 16 and Oct. 20: -9.11 percent