Bloomberg Fixed Income Indices August 24, 2021
Bloomberg Fixed Income Index Methodology 6
to include Mortgage Backed Securities (“MBS”) securities. This expanded second-generation
macro index was called the US Aggregate Index and was backfilled with data to 1976.
Since the mid-1980s, the global debt capital markets have evolved and expanded because of
the acceleration of economic and capital market globalization, rapid technological change and
increased availability of information, and the steady emergence of new issuers and security
types. A substantive high yield corporate market emerged first in the US and later in Europe.
Emerging markets (“EM”) debt was disintermediated from commercial banks to the public
security markets, with new countries issuing debt in hard currency, local currency, and inflation-
linked formats. Fixed- and floating-rate asset backed securities (“ABS”) were issued in the US,
Europe and Asia. Commercial mortgage backed securities (“CMBS”) and agency hybrid ARM
MBS were introduced. Inflation-linked bonds and floating-rate notes emerged as distinct fixed
income asset classes. Issuance of capital securities, hybrid instruments and convertibles
appealing to both debt and equity investors accelerated. Interest rate, currency and credit
default swaps were created and became widely used as instruments to express market views in
fixed income portfolios. Encouraged by the support of our many index users among plan
sponsors, money managers, consultants, issuers, and academics, the index franchise added
performance metrics for these new debt asset classes to match the pace of market innovation
with benchmark indices.
was launched in 1998, the
Global Aggregate in 1999,
and the Asian-Pacific
Aggregate in 2000
Indices for new asset classes, such as inflation-linked bonds,
3
ABS, CMBS, and EM, were
introduced in the 1990s. The multi-currency Global Treasury Index was launched in 1992. A third
generation of macro indices, including the US Universal Index (1999), tracking investment grade
and high yield debt in one benchmark, was originated. In tandem with market and asset
management evolution, the index franchise became a truly global platform with the creation of
the Euro Aggregate Index in July 1998, Pan-European Aggregate Index in January 1999, Asian-
Pacific Aggregate Index in July 2000, and Global Aggregate Index in January 1999. The Global
Aggregate has seen steady expansion into new investment grade debt markets since its initial
launch and now tracks 24 different local currency debt markets.
In 1997, the first Index Advisory Council was held in the US to collect external feedback to be
used in the governance of benchmark indices. Subsequent Index Advisory Councils have been
held globally in London, Singapore and Tokyo as part of the formal index governance process.
In the 2000s, US and Euro Floating-Rate Notes Indices, the Global Capital Securities, Floating
Rate ABS Indices, and a Taxable Municipal Index were introduced. In 2002, the Canadian
Aggregate Index was launched, and in March 2003, a US Convertibles Index was created, with
subsequent EMEA and APAC Convertibles Indices launched in 2010 and 2011, respectively.
Local currency indices for China (2004), Russia (2006) and India (2007) were launched to delve
deeper into new local currency debt markets. In 2007, the EM Government Inflation-Linked
Bond Index further expanded both the inflation-linked and EM index families. In 2010, a
standalone EM Local Currency Government Index family was launched tracking both Global
Aggregate eligible and non-Global Aggregate eligible nominal local currency government
debt. In 2012, the LDI Index family was launched as a new replicable benchmark for US liability
driven investors.
The evolution of indices continues at Bloomberg. In March 2017, Global Aggregate + China and
EM Local Currency Government + China Indices were launched to incorporate China’s RMB-
denominated government and policy bank debt. In March 2018, Bloomberg began adding
Chinese RMB-denominated government and policy bank debt into the flagship Global
Aggregate Index in April 2019.
Recent innovations in “smart
beta” indices include the
launch of GDP Weighted
Indices, Fiscal Strength
Weighted Indices, ESG
themed indices and Duration
Hedged Indices
While the primary expansion of the Bloomberg index platform has focused on added coverage
of new asset classes and a quest to fully map the global fixed income debt markets, there has
also been parallel development to create new measures of already covered asset classes that
reflect alternative investment themes. In 2009, float-adjusted versions of Bloomberg Indices
that exclude publicly announced government holdings were introduced, as well as GDP
weighted versions of existing flagship indices, such as the Global Treasury, Global Aggregate,
and Euro Treasury Indices. In 2011, Fiscal Strength Weighted Indices further expanded
alternative weight index offerings, integrating objective measures of a government’s financial
solvency, dependence on external financing, capacity, and governance to determine index
3
Inflation-linked indices were independently launched and offered under the Barclays and Lehman Brothers brands. These indices were unified under a single brand in
September 2008, but remained as two distinct offerings: Series-B and Series-L Indices, respectively.