Japan's leading index that signals the future economic activity, remained stable in May, preliminary survey data from the Cabinet Office showed Thursday.

The leading index came in at 100 in May, the same as in April and matched economists' expectations.

Meanwhile, the coincident index that reflects the current economic activity, fell to 110.5 in May from 112.0 a month ago. Nonetheless, the reading was above the expected level of 110.2.

Similarly, the lagging index that indicates the past economic activity, dropped to 113.7 from 115.3 in the previous month.