Asian equity markets ended mostly lower on Wednesday as oil extended overnight losses, the yen strengthened and a slew of data painted a mixed picture of regional economies. Lingering uncertainty over Brexit and caution ahead of Thursday's OPEC and the ECB meetings, as well as Friday's US jobs report also kept investors cautious. Chinese shares slipped as a slew of data reinforced investor concerns about a decelerating economy. While China's official manufacturing PMI came in at 50.1 for May, marking a third straight month of expansion, the Caixin manufacturing PMI contracted for the 15th straight month with a reading of 49.2, down from 49.4 in April. The official non-manufacturing PMI, a gauge of activity outside factory floors, slipped to 53.1 in May from 53.5 in April. Japanese shares snapped a five-day winning streak as the yen strengthened and the latest survey from Nikkei showed manufacturing conditions in Japan weakened for a third consecutive month in May on weak demand from overseas consumers.
| Asian Indices | Last Trade | Change in Points | Change in % |
| Shanghai Composite | 2,913.51 | -3.11 | -0.11 |
| Hang Seng | 20,760.98 | -54.11 | -0.26 |
| Jakarta Composite | 4,839.67 | 42.80 | 0.89 |
| KLSE Composite | 1,626.50 | 0.50 | 0.03 |
| Nikkei 225 | 16,955.73 | -279.25 | -1.62 |
| Straits Times | 2,790.54 | -0.52 | -0.02 |
| KOSPI Composite | 1,982.72 | -0.68 | -0.03 |
| Taiwan Weighted | 8,597.16 | 61.57 | 0.72 |