Foreign investors' transactions on the Nigerian Exchange (NGX) fell by 25.90% month-on-month in May 2026, totaling N183.61 billion, down from N247.78 billion in April. This decline marks the worst performance for foreign investor participation in 2026, despite overall market activity reaching its highest monthly level of the year, according to Nairametrics.

In June, the Nigerian stock market experienced significant losses, with investors losing N13.3 trillion in value on the Nigerian Exchange Limited (NGX), marking the highest monthly loss recorded in the first half of the year. This decline is attributed to profit-taking activities among investors. Additionally, FTSE Russell has delayed Nigeria's Frontier Market status due to concerns regarding the T+1 settlement system, according to Vanguard Business.

In June 2026, the market capitalization of Nigeria's largest listed companies, categorized as SWOOT (Stocks Worth Over One Trillion Naira), decreased by N11.97 trillion month-on-month. This decline was attributed to profit-taking and foreign exchange pressures, leading to a significant sell-off in the stock market, according to Nairametrics.

According to Nairametrics, an investor who invested N1 million in Aradel Holdings Plc shares on January 2, 2026, would have seen their investment grow to N2.11 million by June 30, 2026, due to the increase in the stock's price. The report discusses the best and worst performing stocks on the Nigerian Exchange for the first half of 2026.

On June 24, 2026, the Nigerian equities market experienced its largest single-day decline of the year, with a loss of N3.64 trillion in investor wealth. This drop was primarily driven by profit-taking in major cement and power stocks, including BUA Cement, Dangote Cement, and Geregu, which overshadowed the previous days' buying momentum and halted the market's recovery efforts.

The Nigerian stock market recorded a gain of N3.2 trillion for investors during the week, attributed to renewed interest in sectors such as banking, telecommunications, and oil and gas, according to Premium Times Business.