NGX Unveils New Trading Framework for Stock Price Movements

Nigerian Exchange Limited (NGX) has introduced a new rule to revise its pricing methodology for listed stocks, implementing a graduated, three‑tier volume system for share price movements.

The change brings the bourse back to the 2018 market microstructure rules that governed how listed stock prices moved on the trading floor by setting minimum trading volume thresholds before prices could change.

With an effective date yet to be announced, the new rule cancels the uniform 100,000‑unit requirement that had been in place for years and restores the three‑tier volume framework.

According to the rule, “Price movements: the minimum quantity of equities traded that will change the published price of an equity security shall be as follows: Group A: Ten Thousand (10,000) units; Group B: Fifty Thousand (50,000) units and Group C: One Hundred Thousand (100,000) units.”

Under the new rule, stocks trading at N1,000 and above will require a minimum of 10,000 shares to be traded before a price movement can occur.

Stocks trading between N500 and N1,000 will require a minimum of 50,000 shares to trigger a price change, and stocks trading below N500 will require a minimum of 100,000 shares to move the market price.

This development marks a significant shift in the exchange’s price‑discovery mechanism and is expected to affect trading strategies, particularly for stocks where relatively small volumes have historically been sufficient to move prices.

Market participants say the move can help improve price stability and reduce the impact of low‑volume transactions on share prices, especially in highly priced equities.

However, some traders are already expressing concerns that the new thresholds may reduce price responsiveness in less liquid stocks.

The policy comes amid heightened regulatory attention on market integrity, liquidity, and price formation as the Nigerian capital market continues to attract increased retail and institutional participation.

Commenting on the new rules, Managing Director of Globalview Capital Limited, Aruna Kebira, said, “This was how it used to be. High‑priced stocks required 10,000 units, medium‑priced stocks required 50,000 units, while lower‑priced stocks required 100,000 units.”

“So, in many ways, the Exchange is returning to a framework that operators are already familiar with.”

According to Kebira, the market has evolved significantly since the rule was changed, with several companies now trading at valuations that were uncommon a decade ago.

He stated, “We now have stocks worth trillions of naira in market capitalization. Requiring the same volume threshold across all categories no longer reflects market realities.”