On Tuesday, shares in cold-storage group Norish began trading on the little-known Plus Markets, an independent share index in London.

It already had a quote on the UK's Alternative Investment Market (AIM), another index for minnows. Those of a certain vintage will remember when Norish was a fully-fledged member of the Irish and London stock markets.

Set up in 1975 as an Irish-Norwegian joint venture, it floated on the main market in Dublin in 1986 before taking a full listing in London in 1988. It quit both in 2005.Back then it made a tidy profit storing meat placed into intervention by the EU. It was money for old rope. The meat and butter mountains have long gone and cold storage is now an altogether more cut-throat business. These days you'll do well to find the Norish share price in the Financial Times and most Irish newspapers have stopped listing the stock. It's a tiddler, with a market value of just £4.9 million (€7.25 million).

Norish said the quote on Plus Markets would aid liquidity. It hardly seems worth the effort.