The cost of insuring euro credit against default edges higher as technology stocks sell off following Samsung's earnings report and oil prices rise. Energy prices gain after Iran's Revolutionary Guard fired at two commercial ships near the Strait of Hormuz, adding to risk-averse sentiment in markets. Still, CDS prices remain at relatively low levels, buoyed as an easing in Middle East tensions has caused oil prices to drop well below peaks hit around two months ago. The iTraxx Europe Crossover index of euro high-yield credit default swaps rises 1 basis point to 241 basis points, S&P Global Market Intelligence data show. The iTraxx Europe Main index of euro investment-grade CDS climbs 1 basis point to 52 basis points. (jessica.fleetham@wsj.com)