Archipelago Holdings, Inc. today announced its June 2005 market transaction volume data for the Archipelago Exchange (ArcaEx(R)), a facility of the Pacific Exchange. Specifically, in NYSE-listed equity securities, ArcaEx’s total trading market share was 3.3% in June 2005, up from 1.5% in June 2004 and down from 3.4% in May 2005.
In AMEX-listed equity securities, ArcaEx’s total trading market share was 29.1% in June 2005, up from 24.8% in June 2004 and down from 31.0% in May 2005. ArcaEx’s ETF total monthly share volume showed continued year-over-year growth with 1, 993.7 (millions of shares) having traded in June 2005 compared to 1,117.9 (millions of shares) traded in June 2004 and down from 2,008.0 (millions of shares) in May 2005.
In Nasdaq-listed equity securities, ArcaEx’s total trading market share was 22.7% in June 2005 down from 24.9% in June 2004 and 23.1% in May 2005.