ACCO ▼ -1.2% - Acco Brands Corporation $ACCO - PowerA Brings the Magic of Harry Potter™ to Gaming Accessories Through New Partnership with Warner Bros. Discovery Global Consumer Products PowerA's new Harry Potter gaming accessories partnership with Warner Bros. Discovery should expand Acco Brands' addressable market in the licensed gaming segment, yet shares fell 1.2% today, suggesting investors may be weighing the partnership's incremental revenue potential against near-term headwinds or existing valuation concerns. 15-SEP-2026 10:08 AM ET