Reading the stock tables is like swimming in alphabet soup. Not only does each company have a ticker symbol of one to five letters, but market listings are also peppered with an array of behind the dot codes that tell you something about the stock. The abbreviation .PK is one such code -- and it tells you to be extremely careful.
Facts and Tips about Phobic Disorders. 1  Phobic Disorders is common form of anxiety disorder, having unreasonable fear of certain situations, conditions, or substance. 2  Phobic Disorders is further divided into three types such as agoraphobia, social phobia (social anxiety disorder) and specific phobias.
1. Specific phobias: Fear of particular objects or social situations that immediately results in anxiety and can sometimes lead to panic attacks. Specific phobia may be further subdivided into five categories: animal type, natural environment type, situational type, blood-injection-injury type, and other. 2. Agoraphobia: a generalized fear of leaving home or a small familiar 'safe' area, and of possible panic attacks that might follow.