
The Bank Bill Swap Rate (BBSW) is a short-term interest rate used as a benchmark for the pricing of Australian dollar derivatives and securities. The BBSW is calculated and published by the Australian Securities Exchange (ASX), which also maintains this rate. BBSW is Australia's equivalent of the London Interbank Offered Rate (LIBOR) and is used as a reference rate in much the same way on an institutional level. The BBSW is an independent reference rate used for pricing securities and is the benchmark to price floating-rate bonds and other securities.
| Characteristics | Values |
|---|---|
| Full Form | Bank Bill Swap Rate (BBSW) |
| Other names | Bank Bill Swap Reference Rate, BBSR |
| Governing Body | Australian Securities Exchange (ASX) |
| Previous Governing Body | Australian Financial Markets Association (AFMA) |
| Date of Transfer of Governing Body | 2017 |
| Advisory Committee | ASX BBSW Advisory Committee |
| Used as | A benchmark for the pricing of Australian dollar derivatives and securities, most notably floating-rate bonds |
| Used by | Fixed-income investors |
| Compared with | Risk-free rate, typically based on government bonds |
| Similar to | London Interbank Offered Rate (LIBOR), SIBOR |
| Calculated as | Average of the national best bid and best offer (NBBO), rounded to four decimal places |
| Published at | 10:15 a.m. daily |
| Published on | Thomson Reuters, Bloomberg LLP |
| Credit Premium | Typically small, like five to ten basis points |
| Highest Credit Premium | Exceeded 300 basis points during the financial crisis of 2008 |
Explore related products
What You'll Learn

How BBSW is calculated
The Bank Bill Swap Rate (BBSW) is a major interest rate benchmark for the Australian dollar. BBSW is a credit-based interest rate benchmark that measures the cost for highly-rated banks in Australia to issue short-term bank paper for each monthly tenor between one month and six months. BBSW is referenced in contracts for derivatives, loans, and securities. It is also used by market participants to value financial instruments and by investment funds as benchmarks for assessing their performance.
BBSW was previously calculated from the best executable bids and offers for Prime Bank securities. However, there were concerns over the low trading volumes during the rate-set window, which is the period over which the BBSW is measured.
A new BBSW calculation methodology was introduced in 2018. The new methodology calculates the benchmark directly from market transactions during a longer rate-set window and involves a larger number of participants. This means that the benchmark is anchored to real transactions at traded prices. The new methodology was developed by the Australian Securities Exchange (ASX), which is also the administrator of BBSW.
The ASX has consulted market participants on this new methodology and has conducted a successful parallel run of the new methodology against the existing method. The Australian Securities and Investments Commission (ASIC) and the Reserve Bank of Australia (RBA) have welcomed the new BBSW calculation methodology. They expect all bank bill market participants, including the banks that issue the bank bills and the participants that buy them, to adhere to the ASX BBSW Guidelines and support the new BBSW methodology.
Australian Dollars to Rand: What's the Exchange Rate?
You may want to see also
Explore related products

BBSW's relation to LIBOR
The London Interbank Offered Rate (LIBOR) was the world's most widely used interest rate for pricing financial contracts for over 40 years. However, in 2017, the regulator of LIBOR announced that it was likely to end. This was due to weaknesses identified in the setting of financial benchmarks, such as LIBOR, which led to a global regulatory program to strengthen financial benchmarks.
In response to the end of LIBOR, major financial markets, including Australia, sought to identify and adopt alternative reference rates. This transition away from LIBOR to alternative rates, such as the Australian Overnight Index Average (AONIA), has been described as a 'market-led' transition driven by supervisory guidance.
The Bank Bill Swap Rate (BBSW) is a key interest rate benchmark for the Australian dollar, alongside the cash rate. BBSW is a credit-based interest rate benchmark that measures the cost for highly-rated banks in Australia to issue short-term bank paper for each monthly tenor between one month and six months. BBSW is quoted by prime Australian banks and is based on the price of a discounted security.
BBSW is considered a robust benchmark rate for the Australian dollar, with Australian financial regulators working closely with industry working groups to ensure its continued strength. The Australian Securities Exchange (ASX) has primary oversight of the governance of the BBSW benchmark and has implemented reforms to strengthen it.
While BBSW is not a direct replacement for LIBOR, as it is not an interbank rate benchmark, it is one of the alternative reference rates that has been adopted by the Australian market in response to the end of LIBOR. ISDA's 2020 IBOR Fallbacks Protocol provides robust fallback provisions for derivative contracts referencing key interbank offered rates (IBORs), including LIBOR and BBSW. These provisions allow for the replacement of an IBOR with the relevant risk-free rate plus a fixed spread if the IBOR becomes unavailable. Australian regulators have encouraged financial institutions and corporations using derivatives contracts referencing LIBOR to adhere to the ISDA protocol to facilitate the transition away from LIBOR.
Australian Government's Role in Managing the Economy
You may want to see also
Explore related products

BBSW's role in financial contracts
The Bank Bill Swap Rate (BBSW) is a key interest rate benchmark for the Australian dollar. It is a credit-based interest rate benchmark that measures the cost for highly-rated banks in Australia to issue short-term bank paper for each monthly tenor between one month and six months. BBSW is used in many financial contracts, mainly lending and interest-rate derivative products, and acts as the base interest rate.
BBSW is also used by market participants to value financial instruments and by investment funds as a benchmark for assessing their performance. BBSW is referenced in contracts for derivatives, loans, and securities. For instance, BBSW is used as the base rate for debt financing in plain vanilla interest rate swap agreements. BBSY, or Bank Bill Swap Bid Rate, is the rate commonly used by banks, financial institutions, and investors as it determines short-term float.
BBSW is crucial in mitigating liquidity risk and maintaining stability in financial markets. Regulatory measures aimed at enhancing BBSW's role in addressing liquidity challenges include introducing mandatory reporting requirements, enhancing benchmark calculation methodology, strengthening the governance framework, and exploring alternative benchmark rates. These measures enhance transparency and accuracy, instilling market confidence in BBSW as a reliable benchmark.
BBSW is also subject to reforms to enhance its robustness. The Australian financial regulators work closely with industry working groups, such as the ASX BBSW Advisory Committee, to ensure key interest rate benchmarks for the Australian dollar remain robust. Additionally, there is an expected natural migration away from using BBSW in some products towards AONIA, especially in financial products referencing a risk-free rate in another currency, such as cross-currency swaps and multi-currency lending facilities.
Exploring Melbourne, Australia on a Shoestring Budget
You may want to see also
Explore related products

BBSW's credit risk
The Bank Bill Swap Rate (BBSW) is an interest rate that includes a credit premium representing the market assessment of the premium payable by Prime Banks relative to a comparable risk-free interest rate (RFR). BBSW is used in many financial contracts, mainly lending and interest-rate derivative products, where it acts as the base interest rate before a margin is applied.
BBSW is the Australian equivalent of the London Interbank Offered Rate (LIBOR) and is used as a reference rate in much the same way on an institutional level. It is calculated and published by the Australian Securities Exchange (ASX), which maintains this rate. BBSW is also Australia's version of the Singapore Interbank Offered Rate (SIBOR).
BBSW is a credit-based interest rate benchmark that measures the cost for highly-rated banks in Australia to issue short-term bank paper for each monthly tenor between one month and six months. BBSW is calculated as the weighted average interest rate on unsecured overnight loans between banks.
The BBSW includes a risk premium to compensate for the risk of the securities as compared to the risk-free rate, which is usually based on government bonds. The credit premium added to the BBSW is typically small, ranging from five to ten basis points. However, during the 2008 financial crisis, it exceeded 300 basis points.
To enhance the effectiveness of BBSW in mitigating liquidity risk, regulators have considered various measures. These include introducing mandatory reporting requirements for BBSW transactions, enhancing benchmark calculation methodology, strengthening the governance framework, and exploring alternative benchmark rates. Such measures aim to improve transparency and accuracy, as well as market confidence in BBSW as a reliable benchmark for assessing liquidity risk.
Great White Sharks: Australia's Coastal Predators
You may want to see also

BBSW's historical data
BBSW, or Bank Bill Swap Rate, is a key interest rate benchmark for the Australian dollar. It measures the cost for highly-rated banks in Australia to issue short-term bank paper for each monthly tenor between one month and six months. BBSW is a credit-based interest rate benchmark.
BBSW was administered by the Australian Financial Markets Association (AFMA) until 2017, when responsibility was transferred to the Australian Securities Exchange (ASX). The ASX provides historical BBSW mid-rates for the previous 10 business days, historical BBSW volume data from 21 May 2018, and historical interbank BBSW volume data up until 18 May 2018. The ASX also offers a BBSW 10-day history, 24-hour delayed BBSW rates, and BBSW-eligible volume.
BBSW rates are referenced in contracts for derivatives, loans, and securities. They are also used to value financial instruments and as benchmarks for assessing the performance of investment funds.
Reforms have been undertaken to enhance the robustness of BBSW and other key interest rate benchmarks for the Australian dollar. The Australian financial regulators have been working closely with the ASX, market participants, and industry working groups to ensure the benchmarks remain robust. Fallback provisions have also been implemented to provide insurance for BBSW and other key interbank offered rates (IBORs).
Australian bond yields have been influenced by the US bond market since the beginning of 2022. The Australian bond market has exhibited high volatility, with bond volatility materially higher than equities volatility.
Amazon Free Shipping to Australia: When and How?
You may want to see also






















