Many studies show that women tend to invest more conservatively than men. In times of wild market swings, their approach can pay off.

Since the Feb. 28 start of the war with Iran , the major stock indexes have zigzagged, dropping before rebounding to reach all-time highs last week. Amid such volatility , women are more likely to adopt a long-term, buy-and-hold investing strategy compared to their male counterparts, research shows .

When it comes to investing, women are generally thought of as more risk-averse than men, said Mary Ellen Iskenderian, president and CEO of Women's World Banking.…