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Numis indices

 A Guide to the Numis Smaller Companies Index produced by Scott Evans and Paul Marsh of the London Business School

Numis provides a range of indices across the size range of the UK equity market. 

The Numis Smaller Companies index is the most widely used UK smaller companies benchmark, used by most of the UK’s largest fund management groups.

  • The index was created by Professor Elroy Dimson and Professor Paul Marsh of London Business School, who have been instrumental in promoting a global understanding of the smaller companies effect that traces the long term outperformance of smaller companies.
  • The Numis Smaller Companies Index was first published in 1987, with a back-history dating from 1955.
  • On a cumulative basis, a typical investment in smaller companies in 1955, with dividends reinvested, would at the end of 2021 have been worth around 500x the original investment, in real terms. By comparison, an investment in UK larger companies would be worth around 60x the original investment.
  • Over 1955-2021 the Numis Smaller Companies index excluding Investment Companies has outperformed UK larger companies by 3.0% p.a. 

The Numis Alternative Markets index tracks the long term performance of widely used UK markets other than the UK main list. Currently this index therefore provides a track of the AIM market. The index is therefore widely used to benchmark funds and portfolios invested in AIM.

Over fifty fund management and wealth management organisations use the Numis indexes. This reflects their long back history, their strong reputation for performance measurement across the whole size range of the UK market, and wide availability of index data on third party platforms.

For further details, contact the Numis Head of Indexes, Will Wallis.

Documents

Benchmark Statement

The Numis Family of Benchmarks

Quick Guide to the Numis Indices