[ by Melanie Gretchen ] The NYSE launched its Retail Liquidity Program on 8/1/12.  Since then, 8/9/12 clocked 6,624 retail trade executions in 281 securities amounting to nearly 2.7 million shares executed.  Further success can be measured in the retail price improvement interest in 541 securities, sent by 6 liquidity providers, which included 128 securities having available price improvement at least 90% of the day. Last week's upward shift – the day's average price improvement for retail orders was $0.0016 and the average size of a retail taking order was just over 2,300 shares – is the kind of retail participation the exchange hopes to continue.  To this end, it encouraged liquidity providers to expand their participation to a broader list of securities throughout the entire trading day. Visit [NYSE] for the list of the 541 securities where there was liquidity-providing interest on 8/9/12, with data showing the percentage of time there was retail price improving interest available in a given security. [NYSE Trader, 8/10/12]