BRCB ▼ -2.3% - Black Rock Coffee Bar, Inc. $BRCB - Black Rock Coffee Bar Continues Expansion in California with New Lake Elsinore Location Black Rock Coffee Bar shares fell 2.3% today despite the company announcing a new location expansion in Lake Elsinore, California, adding to its growing footprint in the state. 01-SEP-2026 04:53 PM ET