The decision by the USPS to shut down Saturday mail service could impact two other companies...

|By:, SA News Editor

The decision by the USPS to shut down Saturday mail service could impact two other companies beyond FedEx and UPS, according to analysts. Stamps.com (STMP +1.5%) might see a slight boost in its business with mail offices shut down, while the read-through for American Greetings (AM) is less favorable if mail is slower and online options for holiday expressions look favorable.