The All-Share Index dipped 16.94 points or 0.04 per cent to close at 39,505.40 from 39,522.34 on Friday.
Market capitalisation shed N71 billion buoyed by profit-taking sentiments by investors in all the major sectors except oil and gas stocks.
Market capitalisation lost N54 billion or 0.27 per cent to close at N20.089 trillion from N20.143 trillion achieved on Friday.
The market sentiment closed positive with 18 gainers against eight laggards.
The All-Share Index depreciated by 53.82 points to 39,156.28 from 39,210.10 on Thursday.
In spite of the drop in market indicators, the total volume of trades traded increased by 36.16 per cent.
The All-Share Index appreciated by 1.78 points or 0.01 per cent to close at 25,574.35 from 25,572.57 posted on Friday