The National Stock Exchange says net cash flow into US-listed exchange-traded funds and exchange-traded notes totalled a record USD180.4bn through year-end 2008, an increase of almost 19 per cent from 2007 when net cash flow reached USD152.2bn.

At the end of December 2008, the number of listed products totalled 848, compared to 672 listed products one year ago.

ETF/ETN notional trading volume also reached a new record of USD24.8trn for 2008, up 70 per cent from USD14.5trn at year-end 2007, representing 33 per cent of all US equity trading volume.

ETF/ETN assets reached USD539bn in December 2008, a decrease of 13 per cent from December 2007 when assets reached USD622.6bn.

This data is included in NSX's December 2008 Month-End ETF/ETN Data Report.

NSX began publishing monthly Data Reports in 2007 following the end of each calendar month.

The NSX monthly statistics include shares of open-end exchange-traded products, encompassing listed shares of investment companies, grantor trusts, ETNs and commodity pools.

In addition, NSX publishes a product-by-product breakdown of the 848 products on which the data is based.