The New York Stock Exchange, in conjunction with Barclays Global Investors, today launched two exchange-traded funds based on NYSE stock indices.

The iShares NYSE 100 Index Fund is based on the U.S. 100 index, which consists of the top 100 U.S. stocks listed on the NYSE.

The iShares NYSE Composite Index Fund will track the broader NYSE composite index.

Both ETFs start trading today on the Big Board. The U.S. 100 and the NYSE Composite ETFs will trade under the NY and NYC symbols, respectively.

The launch of the two ETFs marks a major move by the New York Stock Exchange in the ETF arena, in which the Big Board in recent years has had to play catch-up to other markets, including Nasdaq.