Tokyo stocks opened lower Monday as investors looked to major events slated for next week while this week has been cut to three business days as the Olympics is set to start.

The benchmark Nikkei 225 index dropped 1.34 percent, or 376.08 points, to 27,627.00, while the broader Topix index lost 0.95 percent, or 18.28 points, to 1,915.99.