Singapore's benchmark rate hits a 16-month high. Here's why the Fed matters more than MAS

What happened

The Singapore Overnight Rate Average, SORA, rose 11.7 basis points to 1.7446% on Friday 6 November, according to data published on 10 November after a public holiday on Monday. That is its highest since July 2025. SORA is the average rate at which banks lend to each other overnight in Singapore dollars, and the benchmark for most floating-rate loans.

The rates actually used to price loans move more slowly, because they compound SORA over a period: the three-month compounded SORA was 1.3413% and the one-month 1.4280%. Frances Cheung of OCBC told Bloomberg the three-month rate is moving towards about 1.4%.

Why Singapore's rates follow the US

Most central banks steer their economy by setting an interest rate. The Monetary Authority of Singapore steers the Singapore dollar instead, letting it rise or fall against a basket of currencies within a band it does not publish. In a small, very open economy, the exchange rate does more to control inflation, since so much of what Singapore consumes is imported (see how exchange rates move).

The price of that choice is that Singapore does not control its interest rates. Money moves freely, so local rates settle where investors are indifferent between holding US dollars and Singapore dollars: roughly the US rate, minus the extra return they expect if the Singapore dollar is set to rise. When the Fed raised rates in September and markets began expecting another rise in December, SORA followed.

The local squeeze

Liquidity matters too. Loans in Singapore have grown faster than deposits: banks' loan-to-deposit ratio rose to 69.8% in September, the highest since August 2024, from 65.8% at the end of 2025. When banks have less spare cash, they charge each other more for it, and the long holiday weekend added to the tightness, according to OCBC.

Where it sits in the chain

This is Link 3, currencies, feeding into Link 1, interest rates: for Singapore, US monetary policy arrives through the currency market, and from there into mortgage payments. See how a rate rise reaches your wallet.

What to watch

• The Fed's decision on 8–9 December: futures put the chance of a rise at about 77%.
• MAS's next monetary policy statement, due in January.
• Whether three-month compounded SORA keeps climbing towards the overnight rate.