Securities Industry Bellwether Minority Caucus - Ethnic Minorities on Wall Street Securities Industry Bellwether Minority Caucus (“SIBMC” or the “Buttermilk Club”) is the premier group that connects African Americans and other ethnic minorities in Legal and Compliance careers in the Securities Industry and Financial Markets. SIBMC membership is open to all African Americans Legal and Compliance professionals and students who are interested in the Securities Industry and Financial Markets. Sibmc.org~Site InfoWhoisTrace RouteRBL Check