10/21/2019 - $STMP - News Catalyst Gap Up

Stamps.com lands deal with UPS, stock shoots more than [UPDATE: 24%] higher in after-hours trading.
https://finance.yahoo.com/m/bbb0aaa9-a9af-37c5-84aa-2480d44d1b48/stamps.com-lands-deal-with.html?.tsrc=rss

I've seen this stock get over-hyped and overvalued really fast before. The result? Refer to July 2018 to May 2019 price action. You be the judge!