The All-Share Index grew by 15.31 points or 0.04 per cent.
The market sentiment closed negative with 18 laggards against 13 gainers.
Transactions on the Nigerian Exchange (NGX) closed Monday upbeat, with investors earning N94 billion.
Market watchers attributed the persistent lull to increased yield in the money market instruments which led to movement of funds.
Experts fear the Nigerian factor will pose an impediment to the smooth sail of online learning in the country.
An expert attributed the market rally to reopening of four land borders.
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