Avg. daily volume: USD 500mn Ref. source: Reuters page <NGNFIX=> Trading hours: 08:00-13:00 GMT Government T-bills and bonds Avg. daily volume USD 200mn (1-year lock up for T-bills was removed in July 2011, there are no lock ups currently in place) Avg. ticket size: USD 3.5mn Bid/ask spread: 50-7