Ito-Yokado Co. said Thursday its first-half net profit jumped 40 percent from a year earlier to 32.41 billion yen, powered by the performance of Seven-Eleven Co. and other subsidiaries.

For the six months that ended Aug. 31, revenue at Japan's second-largest retailer rose 1.4 percent on a year-on-year basis to 1.8 trillion yen.

Seven-Eleven, in which Ito-Yokado has a 50.6 percent stake, continued to post robust growth in earnings and revenue for the first half, buoyed by aggressive store openings.