The overall Athens General Index (.ATG) was down around 4 percent after opening higher. Gaming group OPAP (OPAr.AT) was up 3.5 percent and Aegean Airlines (AGNr.AT gained 2.7 percent. The Athens index lost 16.2 percent on Monday, the worst fall on record, wiping out nearly 8 billion euros of market value as investors worried about a new bailout from the European Union and reacted to Greece’s worsening economy.