Costco (COST) Latest Stock Analysis Report – Oct 15, 2026, 4:00 PM ET
Updated Oct 15, 2026, 4:00 PM ET
COST dips 0.4% to $978.01. Closed at $978.01, -0.41% vs the prior close of $982.00. Day range $977.24–$1,008.37, opened at $998.11.
COST daily analysis — what happened
A plain-English, data-only note written after every US trading day. Newest first; older days stay archived below.
Oct 15, 2026 — COST dips 0.4% to $978.01
- Closed at $978.01, -0.41% vs the prior close of $982.00. Day range $977.24–$1,008.37, opened at $998.11.
- Volume was 3.00M shares, 1.5x its 50-day average of 2.04M.
- Price is +4.8% vs its 50-day average ($932.99) and +1.3% vs its 200-day average ($965.50).
- 52-week range $844.06–$1,096.50; today's close sits at 53% of that range, 10.8% below the 52-week high.
Oct 14, 2026 — COST rises 2.9% to $982.00, a 3-month high
- Closed at $982.00, +2.87% vs the prior close of $954.63. Day range $960.00–$982.64, opened at $961.35.
- Volume was 3.07M shares, 1.5x its 50-day average of 2.03M.
- Price is +5.3% vs its 50-day average ($932.27) and +1.8% vs its 200-day average ($964.95).
- 52-week range $844.06–$1,096.50; today's close sits at 55% of that range, 10.4% below the 52-week high.
- SEC filings that day: 8-K.
Oct 13, 2026 — COST dips 0.5% to $954.63
- Closed at $954.63, -0.50% vs the prior close of $959.44. Day range $953.78–$966.00, opened at $965.73.
- Volume was 1.42M shares, 0.7x its 50-day average of 2.04M.
- Price is +2.5% vs its 50-day average ($931.59) and -1.0% vs its 200-day average ($964.41).
- 52-week range $844.06–$1,096.50; today's close sits at 44% of that range, 12.9% below the 52-week high.
Oct 12, 2026 — COST rises 1.3% to $959.44, a 1-month high
- Closed at $959.44, +1.32% vs the prior close of $946.92. Day range $946.70–$960.74, opened at $949.46.
- Volume was 1.48M shares, 0.7x its 50-day average of 2.05M.
- Price is +3.0% vs its 50-day average ($931.58) and -0.5% vs its 200-day average ($963.99).
- 52-week range $844.06–$1,096.50; today's close sits at 46% of that range, 12.5% below the 52-week high.
Oct 9, 2026 — COST ends flat (-0.1%) to $946.92
- Closed at $946.92, -0.11% vs the prior close of $947.92. Day range $942.53–$951.29, opened at $945.00.
- Volume was 1.50M shares, 0.7x its 50-day average of 2.06M.
- Price is +1.7% vs its 50-day average ($931.43) and -1.7% vs its 200-day average ($963.47).
- 52-week range $844.06–$1,096.50; today's close sits at 41% of that range, 13.6% below the 52-week high.
Oct 8, 2026 — COST rises 0.6% to $947.92, a 1-month high, 6 up days in a row
- Closed at $947.92, +0.60% vs the prior close of $942.25. Day range $939.60–$953.25, opened at $952.92.
- Volume was 2.27M shares, 1.1x its 50-day average of 2.06M.
- Price is +1.8% vs its 50-day average ($931.57) and -1.6% vs its 200-day average ($962.99).
- 52-week range $844.06–$1,096.50; today's close sits at 41% of that range, 13.6% below the 52-week high.
- That makes 6 straight gains.
Oct 7, 2026 — COST rises 0.7% to $942.25, a 1-month high, 5 up days in a row
- Closed at $942.25, +0.70% vs the prior close of $935.68. Day range $937.60–$948.77, opened at $940.84.
- Volume was 1.77M shares, 0.9x its 50-day average of 2.08M.
- Price is +1.1% vs its 50-day average ($932.09) and -2.1% vs its 200-day average ($962.52).
- 52-week range $844.06–$1,096.50; today's close sits at 39% of that range, 14.1% below the 52-week high.
- That makes 5 straight gains.
- SEC filings that day: 10-K.
Oct 6, 2026 — COST rises 1.3% to $935.68, a 1-month high, 4 up days in a row
- Closed at $935.68, +1.32% vs the prior close of $923.52. Day range $919.00–$937.04, opened at $921.32.
- Volume was 1.90M shares, 0.9x its 50-day average of 2.08M.
- Price is +0.3% vs its 50-day average ($932.58) and -2.7% vs its 200-day average ($962.10).
- 52-week range $844.06–$1,096.50; today's close sits at 36% of that range, 14.7% below the 52-week high.
- That makes 4 straight gains.
Oct 5, 2026 — COST rises 0.3% to $923.52, 3 up days in a row
- Closed at $923.52, +0.31% vs the prior close of $920.65. Day range $914.75–$925.34, opened at $920.00.
- Volume was 1.95M shares, 0.9x its 50-day average of 2.07M.
- Price is -1.0% vs its 50-day average ($932.90) and -4.0% vs its 200-day average ($961.74).
- 52-week range $844.06–$1,096.50; today's close sits at 31% of that range, 15.8% below the 52-week high.
- That makes 3 straight gains.
Oct 2, 2026 — COST rises 0.6% to $920.65
- Closed at $920.65, +0.62% vs the prior close of $914.94. Day range $909.66–$921.18, opened at $921.18.
- Volume was 2.02M shares, 1.0x its 50-day average of 2.07M.
- Price is -1.3% vs its 50-day average ($933.13) and -4.2% vs its 200-day average ($961.42).
- 52-week range $844.06–$1,096.50; today's close sits at 30% of that range, 16.0% below the 52-week high.
COST latest news & SEC filings
Every SEC filing by or about COST in the last 120 days, explained in plain English. Updated daily, with a same-day refresh for new filings.
Oct 14, 2026 · 4 — Insider trade report (Form 4)
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Wilcox William Richard sold 1,100 shares at $958.21 (≈$1.05M) on Oct 13, 2026; now holds 3,094
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Oct 14, 2026 · 8-K — Current report
Current report — a filing companies must make within 4 business days of a major event
- Item 8.01 — Reported other events the company considers important.
Oct 13, 2026 · 144 — Notice of proposed sale (Form 144)
Notice of proposed sale (Form 144) — an insider or affiliate plans to sell restricted or control shares
A notice of intent, not a completed sale. Any actual sale by a director or officer shows up later on Form 4.
Oct 7, 2026 · 10-K — Annual report (audited full-year financial statements and business review)
Annual report (audited full-year financial statements and business review)
Fiscal year ended Aug 30, 2026:
- Revenue: $303.15B (prior year $275.24B) (+10.1% vs Aug 31, 2025)
- Net income: $9.23B (prior year $8.10B) (+13.9% vs Aug 31, 2025)
- Diluted EPS: $20.76 (prior year $18.21) (+14.0% vs Aug 31, 2025)
Sep 30, 2026 · 4 — Insider trade report (Form 4)
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Frates Caton sold 801 shares at $915.93 (≈$733.33K) on Sep 29, 2026; now holds 7,912
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Sep 30, 2026 · 4 — Insider trade report (Form 4)
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Adamo Claudine sold 2,200 shares at $915.93 (≈$2.02M) on Sep 29, 2026; now holds 7,134
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Sep 29, 2026 · 144 — Notice of proposed sale (Form 144)
Notice of proposed sale (Form 144) — an insider or affiliate plans to sell restricted or control shares
A notice of intent, not a completed sale. Any actual sale by a director or officer shows up later on Form 4.
Sep 29, 2026 · 144 — Notice of proposed sale (Form 144)
Notice of proposed sale (Form 144) — an insider or affiliate plans to sell restricted or control shares
A notice of intent, not a completed sale. Any actual sale by a director or officer shows up later on Form 4.
Sep 24, 2026 · 8-K — Current report
Current report — a filing companies must make within 4 business days of a major event
- Item 2.02 — Reported results of operations (earnings release).
This is a results-day filing: the earnings press release is attached as an exhibit.
Jul 8, 2026 · 8-K — Current report
Current report — a filing companies must make within 4 business days of a major event
- Item 8.01 — Reported other events the company considers important.
Jun 29, 2026 · 11-K — Annual report for an employee stock plan
Annual report for an employee stock plan
Things to know before you trade COST
- Last results release: Sep 24, 2026 (8-K Item 2.02). Previous ones: May 28, 2026, Mar 5, 2026, Dec 11, 2025. Based on that rhythm, the next report is likely around Dec 24, 2026 — an estimate, not a confirmed date.
- How much it moves: over the last 20 sessions the average daily move was 0.80% (largest 2.9%). That is a relatively calm stock.
- Liquidity: about 2.39M shares (≈$2.33B) trade per day on average.
- 52-week position: $978.01 vs a range of $844.06–$1,096.50 (53% of the range).
- Dividends: last ex-dividend date Jul 24, 2026 ($1.47/share); 4 payments in the past 12 months.
- Splits: none in the last 2 years.
- Insider trades (Form 4, last 12 months, recent 25 shown): 0 open-market buys, 15 sales; latest: Claudine Adamo sold 2,200 shares on Sep 29, 2026.
- Latest filings: 8-K Oct 14, 2026; 10-K Oct 7, 2026; 8-K Sep 24, 2026.
- Share count: 443.13M shares outstanding (Sep 29, 2026), -0.0% vs a year earlier.
- Listing: Nasdaq · industry: Retail-Variety Stores.
COST market data (last 20 sessions)
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| Oct 15, 2026 | 998.11 | 1,008.37 | 977.24 | 978.01 | 3.00M |
| Oct 14, 2026 | 961.35 | 982.64 | 960.00 | 982.00 | 3.07M |
| Oct 13, 2026 | 965.73 | 966.00 | 953.78 | 954.63 | 1.42M |
| Oct 12, 2026 | 949.46 | 960.74 | 946.70 | 959.44 | 1.48M |
| Oct 9, 2026 | 945.00 | 951.29 | 942.53 | 946.92 | 1.50M |
| Oct 8, 2026 | 952.92 | 953.25 | 939.60 | 947.92 | 2.27M |
| Oct 7, 2026 | 940.84 | 948.77 | 937.60 | 942.25 | 1.77M |
| Oct 6, 2026 | 921.32 | 937.04 | 919.00 | 935.68 | 1.90M |
| Oct 5, 2026 | 920.00 | 925.34 | 914.75 | 923.52 | 1.95M |
| Oct 2, 2026 | 921.18 | 921.18 | 909.66 | 920.65 | 2.02M |
| Oct 1, 2026 | 910.87 | 923.50 | 903.78 | 914.94 | 2.13M |
| Sep 30, 2026 | 924.61 | 925.56 | 910.30 | 910.34 | 2.22M |
| Sep 29, 2026 | 916.80 | 925.97 | 912.66 | 924.59 | 2.41M |
| Sep 28, 2026 | 924.39 | 931.09 | 913.00 | 922.92 | 2.44M |
| Sep 25, 2026 | 887.00 | 925.14 | 883.10 | 922.77 | 4.63M |
| Sep 24, 2026 | 908.81 | 909.43 | 895.26 | 896.48 | 2.89M |
| Sep 23, 2026 | 901.31 | 905.59 | 893.36 | 904.70 | 2.28M |
| Sep 22, 2026 | 902.26 | 903.40 | 895.84 | 899.41 | 1.98M |
| Sep 21, 2026 | 891.07 | 899.44 | 885.50 | 898.48 | 2.16M |
| Sep 18, 2026 | 892.43 | 898.40 | 890.55 | 895.31 | 4.17M |
About Costco
Costco (COST) is listed on the Nasdaq and classified by the SEC under “Retail-Variety Stores”. Its business address is in ISSAQUAH, WA. State of incorporation: WA. Fiscal year ends August 30. SEC CIK 909832.
COST board of directors & executives
From SEC Form 3/4/5 insider filings made in the last 12 months (date = latest filing).
Directors
| Name | Role | Latest filing |
|---|---|---|
| Susan L Decker | Director | Jan 20, 2026 |
| Kenneth D Denman | Director | Jun 25, 2026 |
| Helena Foulkes | Director | Oct 24, 2025 |
| Hamilton E James | Director | Oct 24, 2025 |
| Sarah Mr Sally Jewell | Director | Oct 24, 2025 |
| Jeffrey S Raikes | Director | Jul 14, 2026 |
| Gina Marie Raimondo | Director | Jan 20, 2026 |
| John W Stanton | Director | Oct 24, 2025 |
| Roland Michael Vachris | President and CEO | Oct 24, 2025 |
| Mary Agnes Wilderotter | Director | Oct 24, 2025 |
Executive officers
| Name | Title | Latest filing |
|---|---|---|
| Claudine Adamo | Executive Vice President | Sep 30, 2026 |
| Patrick J Callans | Executive Vice President | Oct 24, 2025 |
| Caton Frates | Sr. Executive Vice President | Sep 30, 2026 |
| Sarah Catherine George | Executive Vice President | May 15, 2026 |
| Teresa A. Jones | Executive Vice President | Sep 14, 2026 |
| James C Klauer | Executive Vice President | Sep 14, 2026 |
| Gary Millerchip | Executive Vice President | Mar 13, 2026 |
| Russell D Miller | Sr. Executive Vice President | Jan 12, 2026 |
| Javier Polit | Executive Vice President | Dec 31, 2025 |
| Pierre Riel | Executive Vice President | Sep 14, 2026 |
| Yoram Rubanenko | Executive Vice President | Sep 14, 2026 |
| Adam Webb Self | Executive Vice President | Sep 30, 2026 |
| John Christopher Sullivan | Executive VP | Oct 24, 2025 |
| Roland Michael Vachris | President and CEO | Oct 24, 2025 |
| William Richard Wilcox | Executive Vice President | Sep 14, 2026 |
Recent insider buys & sales
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Sep 29, 2026 | Claudine Adamo | Sale | 2,200 | $915.93 |
| Sep 29, 2026 | Caton Frates | Sale | 801 | $915.93 |
| Jun 23, 2026 | Kenneth D Denman | Sale | 885 | $957.45 |
| Apr 1, 2026 | Caton Frates | Sale | 700 | $993.00 |
| Mar 9, 2026 | Claudine Adamo | Sale | 730 | $1,003.02 |
| Jan 21, 2026 | Teresa A. Jones | Sale | 850 | $986.26 |
| Jan 16, 2026 | Susan L Decker | Sale | 458 | $955.00 |
| Jan 14, 2026 | James C Klauer | Sale | 1,500 | $939.00 |
| Jan 9, 2026 | Russell D Miller | Sale | 1,500 | $916.32 |
| Dec 30, 2025 | Javier Polit | Sale | 558 | $862.90 |
| Dec 29, 2025 | Javier Polit | Sale | 2,049 | $867.21 |
| Nov 7, 2025 | William Richard Wilcox | Sale | 2,400 | $930.13 |
| Oct 24, 2025 | Claudine Adamo | Sale | 2,700 | $935.68 |
| Oct 24, 2025 | Tiffany Marie Barbre | Sale | 1,239 | $934.62 |
| Sep 29, 2025 | Russell D Miller | Sale | 3,381 | $915.00 |
COST financials (annual, from XBRL filings)
| Fiscal year end | Revenue | Net income | Diluted EPS | Operating cash flow |
|---|---|---|---|---|
| Aug 30, 2026 | $303.15B | $9.23B | — | $15.82B |
| Aug 31, 2025 | $275.24B | $8.10B | — | $13.34B |
| Sep 1, 2024 | $254.45B | $7.37B | — | $11.34B |
| Sep 3, 2023 | $242.29B | $6.29B | — | $11.07B |
| Aug 28, 2022 | $226.95B | $5.84B | — | $7.39B |
Latest balance sheet: total assets $89.05B, total liabilities $53.24B, cash $20.21B (as of Aug 30, 2026).
COST earnings / results-day log
| Date | Filing | Close that day |
|---|---|---|
| Sep 24, 2026 | 8-K Item 2.02 (results) | $896.48 |
| May 28, 2026 | 8-K Item 2.02 (results) | $995.20 |
| Mar 5, 2026 | 8-K Item 2.02 (results) | $982.57 |
| Dec 11, 2025 | 8-K Item 2.02 (results) | $884.48 |
| Sep 25, 2025 | 8-K Item 2.02 (results) | $943.31 |
| May 29, 2025 | 8-K Item 2.02 (results) | $1,008.74 |
| Mar 6, 2025 | 8-K Item 2.02 (results) | $1,026.62 |
| Dec 12, 2024 | 8-K Item 2.02 (results) | $988.39 |
| Sep 26, 2024 | 8-K Item 2.02 (results) | — |
| May 30, 2024 | 8-K Item 2.02 (results) | — |
| Mar 7, 2024 | 8-K Item 2.02 (results) | — |
| Dec 14, 2023 | 8-K Item 2.02 (results) | — |
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Information only, not investment advice. BuyMeWhiskey is not a registered investment adviser or broker-dealer; nothing here is a recommendation to buy, sell or hold any security, and there are no price targets. Data comes from SEC EDGAR filings and public end-of-day market data and may be delayed or contain errors. Verify with the company's filings before making decisions. Prices: end-of-day data as of Oct 15, 2026, 4:00 PM ET. Filings: SEC EDGAR. Updated after every US trading day.