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COST reported Fiscal Year 2026 (52 weeks ended August 30, 2026) results. The stock moved +1.7% on the print.
COSTearnings

Costco Wholesale Corporation (COST) FY2026 earnings

September 25, 2026 · SharpeIQ Research Desk

Reported results

  • Net sales for fiscal year 2026 increased 10.1% to $297.2 billion from $269.9 billion in fiscal 2025 (GAAP)
  • Net income for fiscal year 2026 was $9.226 billion, or $20.76 per diluted share, compared to $8.099 billion, or $18.21 per diluted share, in fiscal 2025 (GAAP)
  • Fourth quarter net sales increased 11.2% to $93.9 billion from $84.4 billion in the prior year quarter (GAAP)
  • Fourth quarter net income was $2.998 billion, or $6.75 per diluted share, compared to $2.610 billion, or $5.87 per diluted share, in the prior year quarter (GAAP)
  • Comparable sales for fiscal year 2026 were 8.4% on a total company basis, or 6.6% excluding impacts from changes in gasoline prices and foreign exchange (non-GAAP adjusted)
  • The company operates 939 warehouses as of August 30, 2026

Notes

Fourth quarter 2026 net income was positively impacted by a non-recurring benefit of $0.15 per diluted share from IEEPA tariff refunds received in the quarter, less partial reinvestment of those refunds in increased member values.

Price and volatility reaction

The stock moved +1.7% on the print. No front-expiry chain was on file, so there is no straddle expected move. 30-day ATM implied volatility moved -3.6 vol points across the event (constant-maturity series — not the front-week crush).

MeasureValueBasis
Close before release907.6852026-09-24
Close after release922.772026-09-25
Realised move+1.7%close to close
30d ATM IV change-3.6 vol ptsconstant-maturity series, not the front expiry
Price and volatility reaction. Closes either side of the release. No front-expiry chain on file for a straddle expected move. SharpeIQ — listed option chain and price_history

Source

The figures above come from the earnings release the company filed with the SEC on 2026-09-24 (8-K, Item 2.02). Read the original filing on sec.gov.

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