Singapore Exchange Limited (S68) said on Jul, 1 2026 that market structure changes proposed by its regulatory subsidiary, Singapore Exchange Regulation, will be rolled out in stages beginning this month.

From Jul, 15 2026, depository agents may hold securities in omnibus broker custody accounts, bringing Singapore’s post-trade model in line with global practice. Six broker custody accounts have been opened for every direct Central Depository account between Oct, 2024 and Apr, 2026. Enhanced oversight and minimum service standards for brokers and depository agents must be fully implemented by the end of 2026.

The exchange will also trim standard board lot sizes on Oct, 5 2026. For securities priced above 10 Singapore dollars and up to 100 Singapore dollars, the lot will drop to 10 units, while those priced above 100 Singapore dollars will trade in single units. Eleven stocks exceeding 10 Singapore dollars—representing 35% of trading activity in the first half of 2026—will be affected first. Quarterly reviews will determine if additional securities qualify, with the next assessment set for Jan, 2027. Reduced lot sizes will remain even if prices later fall below the thresholds.

Separately, minimum bid sizes for HKD-, RMB- and JPY-denominated securities on SGX will no longer mirror their home markets from Jul, 15 2026, with details to be issued to members via circular.