ABT is the stock index abbreviation for Abbot Laboratories. Abbot produces Vicodin as well as many other drugs and medical products. They contribute each year to anti marijuana organizations and continue to sell a more dangerous opiate based product.
Abbot does a lot of good, helping people with their products who have a wide range of health issues. The company was founded by Dr. Wallace C. Abbot in 1888 and appears to be a solid blue chip stock.