Whether it is astronomical constellations that move with the stock market or mirrored sculptures suggesting interaction with their surroundings, the financial services industry is no stranger to works of contemporary art. However, the relationship may be becoming more intimate: banks and financial institutions are making greater use of artists to express their raison d'être.

The Source, a 32-metre-high sculpture at the London Stock Exchange, is the latest artistic endeavour with a financial services theme. Comprising 729 suspended spheres that move randomly to represent activity on global financial markets, it takes pride of place in the atrium of the LSE's new building at Paternoster Square.