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   _____   _    _   __    __     ___     __   _   
  / ___// | || | || \ \\ / //   / _ \\  | || | || 
  \___ \\ | || | ||  \ \/ //   | / \ || | '--' || 
  /    // | \\_/ ||   \  //    | \_/ || | .--. || 
 /____//   \____//     \//      \___//  |_|| |_|| 
`-----`     `---`       `       `---`   `-`  `-`

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Text this: A study on bid-ask spread patterns of Nikkei 225 stock index futures traded on SGX-DT and OSE.