Nymex Holdings, the parent company of the New York Mercantile Exchange, has set the indicative price range of its planned flotation, making it the seventh US exchange to go public.

In a filing with the Securities and Exchange Commission, Nymex has set a price range of between $48 and $52 per share, but has not said how many shares it plans to sell. The commodities exchange plans to list its stock on the New York Stock Exchange and is expected to raise up to $250m (€199.5m).