African stock markets are having a rare moment in the global investment spotlight.

From Nigeria and Ghana to Tunisia and Kenya, exchanges across the continent are delivering returns that have outpaced some of the world’s biggest equity markets, forcing investors to reconsider a region that has spent years being defined more by macroeconomic instability than market performance.

Bloomberg data showed that three African exchanges ranked among the world’s five best-performing stock markets in dollar terms as of August 14. Ghana’s GSE Composite Index was up 66.68 percent year to date, Nigeria’s NGX All-Share Index had gained 65.23 percent, while Tunisia’s TUNINDEX was also among the strongest performers.

The momentum is not entirely new. African markets were already climbing global performance rankings last year, when Ghana topped the world in dollar terms as of October, followed by Zambia, while Nigeria, Kenya and South Africa also ranked among the better-performing exchanges.

But the scale of this year’s gains raises a more important question: is Africa finally entering a sustained equity-market repricing, or are investors simply witnessing another short-lived rally?