COST — Costco Wholesale · catalysts, narrative & risks

Context and Caveats

As of 2026-09-22, Costco Wholesale (NASDAQ: COST) is a member-based warehouse retailer in the grocery/wholesale sector. The one dated event on our calendar — the Q4 FY2026 earnings release on September 24, 2026 — is confirmed across multiple independent sources below, and I'll flag where it is described (some sources are slightly inconsistent on details).

Upcoming Scheduled Event: Q4 FY2026 Earnings (September 24, 2026)

Costco is scheduled to release its fiscal fourth-quarter 2026 results after the U.S. market close on Thursday, September 24, 2026, with a conference call at 5:00 PM ET [1][2][6]. Several sources corroborate this date, including a member-focused guide framing the report's relevance to warehouse plans and pricing for fiscal 2027 [4].