Breaking the glass ceiling is a Herculean task, especially in Pakistan, but Maheen Rehman has managed to shatter stereotypes in a short span. In the country’s male-dominated financial sector, Ms. Rehman holds her own place, standing tall.

Maheen Rehman is Pakistan’s top investment banker, ranking fifth in the Forbes ’40 Under 40′ list this year. She is CEO of Alfalah GHP Investment Management Ltd, the country’s eighth largest money-managing firm.

Rehman has been lauded for a 475% return from her IGI Stock fund since it started in 2008. This is more than double the benchmark index. Among 34 fund managers tracked by Bloomberg, hers ranks as the biggest gain.

In a country where the population of female employees is the smallest among Asia’s 15 largest economies, Rehman has been a trailblazer. She started as the youngest and only female head of an asset-management division. In her first year in the top position, she doubled the assets under her management.

Maheen Rehman’s success story has had difficult chapters, but her persistence and business acumen has paid off and it seems there’s no way for her to go but up.