The objective of the SPDR Barclays 15+ Year Gilt UCITS ETF is to track the performance of the long-dated UK government bond (Gilt) market. It aims to do this by tracking the performance of the Barclays UK Gilt 15+ Year Index as closely as possible The Barclays UK Gilt 15+ Year Index measures the performance of the UK Government bond (Gilt) market and includes public obligations of the United Kingdom with maturities of over 15 years. Using market capitalisation weighting and a standard rule-based inclusion methodology, the Index reflects the performance and characteristics of the Gilt market. Securities must be rated investment grade, as defined by the Barclays Index Methodology.