Women's History Month: CNBC contributors share their inspirations

March is Women's History Month, and we're spotlighting some of our CNBC contributors—Sand Hill Global Advisors CIO Brenda Vingiello, RBC Global Head of Commodity Strategy Helima Croft, Metropolitan Capital CEO Karen Finerman, Hightower Chief Investment Strategist Stephanie Link and Pivotal Advisors CEO Tiffany McGhee.