The Nigerian Exchange experienced something interesting in the week ended September 18, 2026: it became more valuable without becoming busier in the conventional sense.
At first glance, the figures appear to tell a familiar story of a bullish market. The NGX All-Share Index climbed 2.78 per cent to 249,804.56, while market capitalisation rose 2.90 per cent to ₦162.157 trillion. Fifty-two equities appreciated during the week, compared with just nine in the previous week.
But beneath those headline gains lies a more unusual development.
Investors traded 3.249 billion shares worth ₦237.986 billion during the week. In the previous week, however, 3.647 billion shares changed hands for only ₦130.151 billion. In other words, the market traded about 398 million fewer shares, yet the monetary value of transactions increased by roughly ₦107.8 billion.
That is the part of the market story that deserves attention. The numbers suggest that the shares being traded carried substantially greater monetary value.
This becomes even more striking when the week is viewed day by day. On September 17, investors traded more than 1.11 billion shares in 54,029 deals, but the following day saw only 525.99 million shares traded. Yet September 18 recorded a remarkable ₦96.89 billion in turnover value with just 525 million shares and 44,240 deals. This was more than double the September 17 trading day’s ₦46.01 billion turnover value.
The implication is that volume alone can no longer tell the whole story of market activity.
A market can have fewer shares changing hands and still experience a dramatic increase in the amount of money moving through it. That distinction matters because it shifts attention from how many shares investors are trading to what those shares are worth when they trade.
Yet the rally on the market was not confined to one index. The NGX Premium Index gained 5.06 per cent, the Banking Index rose 4.43 per cent, the Insurance Index advanced 3.79 per cent and the Oil/Gas Index increased 3.71 per cent. The NGX CG Index posted an even stronger 4.87 per cent gain.
There is, however, one important counterpoint: the NGX Growth Index fell 0.14 per cent during the week.
That divergence makes the week’s performance more interesting than a simple “stocks went up” headline suggests. Perhaps the clearest way to understand the week is to see it from the perspective of a value-driven market narrative rather than a volume-driven one.
The exchange itself provides another piece of the puzzle. The NGX Premium Index recorded a year-to-date increase of 104.11 per cent, while the NGX Oil/Gas Index was up 125.94 per cent over the same period. The All-Share Index stood 60.53 per cent higher year-to-date.
These figures show that the September rally did not occur in isolation. It formed part of a much larger year-long appreciation in several segments of the market.