Unlock stock picks and a broker-level newsfeed that powers Wall Street. Upgrade Now Istanbul - Delayed Quote • TRY Usak Seramik Sanayi A.S. (USAK.IS) Follow Add holdings 5.43 +0.49 +(9.92%) At close: 6:09:05 PM GMT+3 Sustainability data is currently not available for USAK.IS.