KUALA LUMPUR: RAM Rating Services Bhd believes the 25 basis points increase in the Overnight Policy Rate is timely as it is an opportune monetary policy action to keep financial imbalances in check. RAM said yesterday the rate hike was to ensure the sustainability of economic growth without the threat of inflationary pressures destabilising its momentum. It said as of May, headline inflation stood at 3.4 per cent, which was in line with its forecast of 3.5 per cent for this year.