Here are some possible explanations for this:

1. Lack of role models and mentors: Women who are interested in pursuing a career in finance may not have as many female role models or mentors to look up to. This can make it difficult for them to envision themselves in leadership positions in the field.

2. Gender bias: Gender bias is still prevalent in many workplaces, including in academia and the financial industry. Women may face discrimination and barriers to advancement due to their gender.

3. Work-life balance: Women who are balancing their careers with family responsibilities may find it difficult to commit to the long hours and demanding work schedules that are often required of finance leaders.

4. Lack of sponsorship: Sponsorship is essential for career advancement in many industries. Women may be less likely to receive sponsorship from male colleagues, who may be more likely to support men.

5. Stereotypes and self-limiting beliefs: Women may internalize stereotypes about their own abilities in math and finance. They may also believe that they are not as capable as men in these areas, which can limit their career aspirations.

6. Lack of opportunities for women of color: Women of color face even greater barriers to success in finance than white women. They may experience both racism and sexism, which can make it even more difficult for them to advance in their careers.

Here are some things that can be done to address this issue:

1. Increase the visibility of female finance leaders. This can be done by featuring women in leadership roles in the media, in textbooks, and in guest lectures.

2. Provide more opportunities for women to network with other women in finance. This can be done through professional organizations, conferences, and mentoring programs.

3. Address gender bias in the workplace. This can be done through unconscious bias training, policies against discrimination, and more flexible work arrangements.

4. Encourage women to pursue careers in finance. This can be done by providing financial aid and scholarships to women who are interested in studying finance, and by encouraging girls and young women to consider careers in the field.

5. Break down stereotypes about women and finance. This can be done by educating the public about the many successful women who have made significant contributions to the field.

6. Create more opportunities for women of color in finance. This can be done by actively recruiting women of color for finance positions and providing them with the resources and support they need to succeed.

By addressing these issues, we can create a more level playing field for women in finance and encourage more women to pursue leadership roles in the field.