Average daily securities turnover at SGX was $791 million in May while the figure was $1.8 billion for the Thai exchange, and $12.4 billion for HKEX, data from Refinitiv shows.
The 1.8% annual expansion fell far short of the long-term average of 3.5% and was the weakest since the global financial crisis.
The index stayed above the 50 threshold that separates contraction from expansion for the 32nd straight month.
The rebound in stock prices also prompted U.S. bond yields to step up from their recent lows, with the 10-year yield off its 21-month low hit earlier in the week.
CDP analyzed survey data from 215 of the largest companies, ranging from Apple and Microsoft to Unilever, UBS, Nestle, China Mobile, Infosys, Sony and BHP.
The economic growth across the Southeast Asia region is expected to decelerate, moderating to 4.8% in 2019.
The report by the National Association for Business Economics is based on responses by 53 economists.
Trump says he will apply tariffs of 5% on all Mexican goods on June 10, and increase the rate in coming months to 25% if Mexico does not substantially halt illegal immigration.
GLP scaled up its U.S. business over the past four years to make it the second-largest in the sector after Prologis Inc.
The International Air Transport Association, which represents about 290 carriers or more than 80 percent of global air traffic.
U.S. President Donald Trump imposed the tariff increase on a$200 billion list of Chinese goods on May 10.
U.S. Defence Secretary Patrick Shanahan did not specifically name China when making accusations of "actors" destabilising the region.
U.S. law requires the administration to wait 60 days after it notifies Congress of the move before it formally ends India's participation in the programme.
Celebrate Singapore Cable Car's anniversary with special promotions for locals each month, starting from June till August.
Founded in 2018 by Ben and Ginny Eckblad, GorillaSpace empowers businesses to more easily find and lease office space, coworking spaces and serviced offices.