SPDR^® Series Trust

Supplement Dated December 2, 2011
to the
Prospectus Dated October 31, 2011, as supplemented

SPDR Barclays Capital Aggregate Bond ETF

Under “The Fund’s Principal Investment Strategy” section on page 49 of the Prospectus, the first sentence of the fourth paragraph is hereby removed and replaced with the following:

As of September 30, 2011, approximately 32.41% of the bonds represented in the Index are U.S. agency mortgage pass-through securities.

PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE

SPDR SER TR FI SUPP 1