SIBOR and SOR, which one is for you?

SIBOR vs SOR thinkingYou may have heard the terms SIBOR and SOR when you’re looking for a home loan. Most home loans in Singapore are based on one of these two reference rates. It can be confusing to choose between two of them for first time home-buyers.

What Are SIBOR and SOR?

SIBOR (Singapore Interbank Offered Rate) and SOR (Swap Offer Rate) are benchmark rates for commercial and private property prices in Singapore.

SIBOR and SOR based home loans are extremely popular among home buyers due to their transparency and security. Unlike some banks’ IBR (internal board rate) or variable rates, SIBOR and SOR are open to public scrutiny and are determined by the interactions between multiple banks (see next section). It is hence difficult for any individual bank to single-handedly raise the SIBOR or SOR rates.

 

SIBOR

SIBOR stands for the Singapore Interbank Borrowing Offer Rate . It is the interest rate at which banks and financial institutions in Singapore borrow from each other. Simply put, SIBOR reflects how much it would cost banks to borrow from each other.

SIBOR is administered by the ABS (Association of Banks in Singapore).  Thomson Reuters will compiles the rates from 17 banks on a daily basis.  The compiled rates are then ranked, with those on the upper and lower quartiles eliminated from the list. The remaining rates (which should come from at least eight banks) are averaged to make the day’s SIBOR. The majority of home loan packages in Singapore are based on SIBOR.

 

SOR

SOR rate stands for Swap Offer Rate and is likewise also a form of interbank lending rate. SOR is based on the foreign exchange rate with the US dollar. Basically, it projects what the interest rate would cost if the same amount of money were borrowed in US dollars. With forex as an extra variable in the calculation, swap offer rates (SOR) are typically more  volatile than the Singapore interbank offered rates (SIBOR). Loans pegged to SOR tend to be subjected to higher uncertainty than SIBOR based loans, and can go lower or higher  faster than SIBOR.

 

SIBOR or SOR? 

SIBOR is determined by the demand and supply of funds between banks in Singapore and is tied to domestic or regional market conditions. Compare to SOR which is more responsive to the American (and hence global) market which subjected to exchange rates and the American money market fluctuation,  SOR is usually more volatile than SIBOR. 

Base on the above conditions, we can say that:

  • SIBOR fluctuates less than SOR
  • Borrowers with bigger risk appetite  may prefer SOR loans as SOR tends to fluctuate more, the fluctuations of SOR can be below SIBOR sometime.
  • Borrowers with less risk appetite  may prefer SIBOR loans as SIBOR loans provides them more stability.

 

 

Below is a illustration for SIBOR and SOR rate trend from 2006 to 2014

SIBOR vs SOR

 

Source - 
Moneysmart
Propquest
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One response

  1. […] data showed the three-month Singapore Interbank Offered Rate (Sibor) , the rate at which banks lend to one another and is a widely used measure of the cost of funds, […]

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