The sharpest contrast across African stock markets today came in the week of May 18-23, 2026: Tunis extended its lead as the continent’s strongest exchange, with the TUNINDEX at 17,197.16 points, up 1.38% on Friday and 27.86% in 2026, while Nairobi suffered a dramatic index break, with the NSE 20 down 24.74% on the day to 1,400.45 points and the NSE 25 off 11.73% to 5,002.83 points. Between those extremes, Brent’s 7.6% weekly drop to $103.54 a barrel became the week’s main cross-market driver, reshaping the relative appeal of banks, telecoms, consumer names and commodity-linked stocks from Casablanca to Johannesburg.
Across the seven exchanges, the performance map remains unusually fragmented in 2026. Tunis is clearly ahead, with double-digit gains across nearly every major segment: banks are up 29.04%, financial services 29.32%, distribution 37.44%, industries 33.74%, and food and beverages 29.04%. The BRVM remains positive but far more measured, with the BRVM Composite at 421.02 points and up 1.7% in 2026. Casablanca is still lagging despite a steady Friday close: the MASI ended at 18,369.69 points, up 0.35% on the day but down 2.53% in 2026, while the MASI 20 remains down 10.94% year-to-date. In Cairo, the closed at , up . Johannesburg slipped, with the at () and the at (). Lagos finished stronger, with the up to .