Amsterdam – 12 October 2006 – WM Performance Services, one of the world's leading investment performance measurement businesses and the European performance measurement division of State Street Corporation (NYSE: STT), today released the results of the Dutch Pension Fund Index (DPFI) for the third quarter of 2006. The DPFI is an indication of the expected return of the WM Universe of Dutch pension funds, and is based on the returns of standard market indices and on the asset allocation of the WM Universe at the end of 2005.

The DPFI showed a return of 3.8 percent in the third quarter of 2006, including the effects from currency hedging, with positive returns in all of the main categories. Currency hedging had only a small impact upon the total return, lowering it by 0.2 percent. For the year to-date, the DPFI is up 4.3 percent (3.3 percent excluding the impact from currency hedging).

Equities performed solidly in the quarter, posting an average return of 5.9 percent on the back of ongoing good company results and the positive interest rate environment. All major regions showed similar returns with the exception of Japan, which lagged behind at only 0.2 percent for the quarter. Equities have also returned 5.9 percent for 2006 to-date, recovering healthily in Q3 from the stagnant performance in the first half of the year.

Fixed Income performed well, returning 2.6 percent in Q3 in total. International Bonds were less influenced by currency movements compared to the first half of the year and showed a quarterly return of 2.1 percent. Global fixed income markets recovered from inflationary pressure during the quarter as oil prices came down and monetary policy of Central Banks was more relaxed, and as the interest rate environment improved, longer-term bonds did especially well.

Real Estate posted another strong quarter in Q3. This asset category was up 5.0 percent in the quarter and is now showing a year to-date return of 12.5 percent, having performed solidly through the difficult interest environment of the first half of the year and benefited further from improvements in bond and equity markets in Q3. The returns for Real Estate funds in particular are hugely impressive, up 13.7 percent for the quarter and now up 30.2 percent for the year to-date.

Notes to Editors
WM Performance Services is one of the world's leading investment performance measurement businesses and is the European performance measurement division of State Street Corporation. Based in Edinburgh, London, Amsterdam, Paris, Frankfurt and Zurich, WM measures more than 5,000 investment portfolios based in the key global investment centres and provides an extensive range of services to support better investment decisions.

The WM Universe of Dutch pension funds comprises funds whose performance has been measured by WM – at the end of 2005, these funds encompassed over €224 billion of invested assets. (This Universe does not include the ABP and PGGM funds.)

State Street Corporation (NYSE: STT) is the world's leading specialist in providing institutional investors with investment servicing, investment management and investment research and trading. With $10.9 trillion in assets under custody and $1.5 trillion in assets under management (as at 30 June 2006), State Street operates in 26 countries and more than 100 geographic markets worldwide. For more information, visit State Street's web site at www.statestreet.com.