Source: Sharecast
UBS said the plan, which was approved at its AGM in April, will see it repurchase up to $2bn of shares over the next two years.
Repurchases will kick off on 1 July and take over the second half of the year.
It follows another $2bn buyback programme which finished recently after being announced in April 2024.
"UBS will communicate its 2026 capital return ambitions with its fourth quarter and full-year 2025 financial results early next year," the bank said in a statement.
The Swiss government announced three weeks ago that UBS would have to hold an extra $26bn in core equity tier one capital, raising the risk of reduced share repurchases as the bank bolsters its capital buffers.
However, while this represented $18bn in new capital compared with UBS's current levels, analysts had estimated the new rules would require the bank to increase new capital buffers by $20bn.
The new capital rules, which were announced in the wake of the UBS-Credit Suisse takeover, also include a requirement for UBS to fully capitalise its foreign units.