# COST — Costco Wholesale · catalysts, narrative & risks

**Deep-research report — K3vl4r**  
**Symbols:** COST  
**Sources:** 14  
**Published:** 2026-09-22  
**Canonical:** https://app.k3vl4r.com/research/deep-research-cost-costco-wholesale-catalysts-narrative-risks-4533

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## 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]](https://tradingkey.com/analysis/stocks/us-stocks/262177963-costco-stock-forecast-slips-ahead-earnings-cost-tradingkey)[[2]](https://www.marketbeat.com/instant-alerts/upcoming-costco-wholesale-cost-projected-to-post-quarterly-earnings-on-thursday-2026-09-17/)[[6]](https://www.marketbeat.com/stocks/NASDAQ/COST/earnings/). Several sources corroborate this date, including a member-focused guide framing the report's relevance to warehouse plans and pricing for fiscal 2027 [[4]](https://mojosalesandbranding.com/post/costco-earnings-september-2026).

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_Preview only. The complete multi-source deep-research report — full thesis, evidence, and citations — is available at https://app.k3vl4r.com/research/deep-research-cost-costco-wholesale-catalysts-narrative-risks-4533 (free to sign up)._