Capitalism is collectivism. Anarchy is the self-sufficiency of a blood-community and therefore the absence of economic interaction with outsiders.
You seem to have some definitional issues. Let me fix that:
an·ar·chy
/ˈanərkē/
Noun
Absence of government and absolute freedom of the individual, regarded as a political ideal.
cap·i·tal·ism
/ˈkapətlˌizəm/
Noun
An economic and political system in which a country's trade and industry are controlled by private owners for profit.