After regular cash trading, S&P 500 e-mini futures
edged down 0.
2 percent while S&P e-mini futures
and Dow minis were also a touch firmer.
on the Standard & PoorA's 500 Index rose 0.
S&P 500 E-mini futures
expiring in June were little changed after the index gained 0.
A crucial part of the puzzle is a large sell trade of E-mini futures
contracts by buy-side firm Waddell and Reed.
Use of algorithms in the futures markets has come under the microscope since a joint report by the US Securities and Exchanges Commission and Commodity Futures Trading Commission identified the algorithmic execution of a large S&P 500 E-Mini futures
trade by a mutual fund as playing a significant part in the 'flash crash' of 6 May 2010.
S&P E-mini futures
were little changed in Asian trade after the Standard & Poor's 500 index advanced 1.
According to a joint report by the SEC and derivatives market regulator the Commodity and Futures Trading Commission (CFTC), published on 1 October, the spark that ignited the market collapse was an attempt to sell 75,000 E-mini futures
contracts by Waddell & Reed, an asset manager with a seven-decade record serving institutional and individual investors.