XOOMAR

COSTCO WHOLESALE CORP /NEW (COST)

Every FINRA and SEC series the site collects for COSTCO WHOLESALE CORP /NEW: short interest with days to cover, daily short sale volume, fails to deliver and Form 4 insider trades. Listed on Nasdaq, classified by the SEC as retail-variety stores.

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7.4M

Short interest

settlement 2026-08-14

4.4

Days to cover

-3.8% vs prior

40.3%

Short share of volume

2026-09-11

7

Fails to deliver

settlement 2026-08-13

-$847K

Insider flow, 90 days

0 buys, 1 sells

As of 2026-09-11.

Short interest

FINRA, twice a month; the last 12 months shown, all 48 settlements in the JSON

As of 14 August 2026, short interest in COST is 7,364,782 shares, up 407,118 shares over the last month. Over the last 48 readings it ranged from 4,863,899 shares (15 July 2025) to 7,878,688 shares (29 May 2026). At the reported average volume of 1.7M shares a day that is 4.4 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-08-147,364,782-3.8%1,682,1354.38
2026-07-317,655,966+10.0%2,042,4823.75
2026-07-156,957,664-4.5%2,532,1062.75
2026-06-307,284,892-7.1%2,985,1472.44
2026-06-157,837,886-0.5%2,171,2443.61
2026-05-297,878,688+7.1%2,944,3592.68
2026-05-157,357,205+9.4%1,844,7233.99
2026-04-306,725,461+2.7%1,648,8494.08
2026-04-156,550,081+4.0%1,917,2163.42
2026-03-316,300,039+0.1%1,628,0423.87
2026-03-136,295,610-1.5%1,952,0063.23
2026-02-276,388,788-8.8%1,827,5383.50
2026-02-137,002,026-1.7%2,417,0782.90
2026-01-307,122,161-9.4%2,594,0432.75
2026-01-157,859,282+5.4%2,887,5002.72
2025-12-317,456,384+10.7%2,811,3242.65
2025-12-156,737,305-12.3%2,939,6592.29
2025-11-287,678,174+6.3%2,608,7022.94
2025-11-147,220,010+4.1%2,470,0132.92
2025-10-316,934,489-0.2%2,141,6423.24
2025-10-156,948,318+3.9%2,486,3422.79
2025-09-306,685,683+2.2%3,008,0682.22
2025-09-156,542,302-4.3%1,748,0923.74
2025-08-296,839,849+15.8%2,335,7472.93

Daily short volume

FINRA Reg SHO, last 60 sessions. JSON

As of 11 September 2026, the short share of COST volume is 40.3%, down 11.6 points over the last five sessions. Over the last 52 readings it ranged from 26.0% (24 July 2026) to 55.9% (30 July 2026). The latest reading is 2.4 points below the 30-session average of 42.6%, on 582K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-09-11234K582K40.3%723
2026-09-10320K753K42.5%1,672
2026-09-09343K815K42.1%673
2026-09-08413K797K51.7%1,493
2026-09-04364K753K48.3%1,355
2026-09-03449K865K51.9%388
2026-09-02395K815K48.5%610
2026-09-01234K575K40.7%38
2026-08-31194K530K36.6%228
2026-08-28184K542K33.9%1,225
2026-08-27348K687K50.6%64
2026-08-26176K402K43.9%36
2026-08-25159K376K42.3%4,341
2026-08-24260K667K38.9%530
2026-08-21258K657K39.4%893
2026-08-20442K911K48.5%210
2026-08-19273K555K49.2%331
2026-08-18232K550K42.2%2,683
2026-08-17177K433K40.8%625
2026-08-14140K382K36.7%930
2026-08-13174K453K38.4%138
2026-08-12186K487K38.2%287
2026-08-11229K633K36.3%54
2026-08-10181K500K36.2%594
2026-08-07177K491K36.0%952
2026-08-06274K602K45.4%137
2026-08-05247K671K36.8%34
2026-08-04280K645K43.5%2,145
2026-08-03323K654K49.4%40
2026-07-31301K600K50.2%634

Fails to deliver

SEC, by settlement date. JSON

As of 13 August 2026, the fails-to-deliver balance in COST is 7 shares, down 2,201 shares over the last settlement date. Over the last 52 readings it ranged from 1 share (27 March 2026) to 16,921 shares (1 July 2026). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-08-137$949.58$7K
2026-08-112,208$952.75$2.1M
2026-08-103,000$947.82$2.8M
2026-08-07621$949.15$589K
2026-08-03886$951.89$843K
2026-07-29312$966.58$302K
2026-07-2849$951.58$47K
2026-07-24533$926.06$494K
2026-07-2317$927.31$16K
2026-07-2015$940.87$14K
2026-07-1413$926.43$12K
2026-07-13674$916.25$618K
2026-07-1032$912.97$29K
2026-07-07177$950.25$168K
2026-07-061,581$951.67$1.5M
2026-07-0116,921$935.47$15.8M
2026-06-3059$946.68$56K
2026-06-241$957.68$958
2026-06-162$979.45$2K
2026-06-15937$982.35$920K
2026-06-121$975.69$976
2026-06-091$974.75$975
2026-06-081,649$971.87$1.6M
2026-06-052,078$972.35$2.0M
2026-06-041$961.83$962
2026-06-0125$956.32$24K
2026-04-303$998.67$3K
2026-04-27817$1011.15$826K
2026-04-2378$1003.70$78K
2026-04-2250$1005.81$50K

Insider trades

SEC Form 4, newest first, 50 of 96 shown. JSON

Insiders at COST reported 1 open-market sell worth $847K in the last 90 days and no open-market buys. Sells alone are a weak signal; insiders sell for tax, diversification and estate reasons all the time. Latest filing: RAIKES JEFFREY S on 2026-07-10.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-07-10RAIKES JEFFREY Sn/aGift5K$0.00$06K
2026-06-23DENMAN KENNETH Dn/aSell885$957.45$847K5K
2026-04-01Frates CatonExecutive Vice PresidentSell700$993.00$695K6K
2026-03-12George Sarah CatherineExecutive Vice PresidentI642$991.21$636K0
2026-03-11MILLERCHIP GARYExecutive Vice PresidentTax withholding1K$992.23$1.1M15K
2026-03-09Adamo ClaudineExecutive Vice PresidentSell730$1003.02$732K6K
2026-01-27RAIKES JEFFREY Sn/aGift5K$0.00$011K
2026-01-27Jones Teresa A.Executive Vice PresidentGift300$0.00$04K
2026-01-21Jones Teresa A.Executive Vice PresidentSell850$986.26$838K4K
2026-01-16DECKER SUSAN Ln/aSell458$955.00$437K9K
2026-01-16Raimondo Gina Marien/aGrant215$0.00$0215
2026-01-14Klauer James CExecutive Vice PresidentSell2K$939.00$1.4M45K
2026-01-09Miller Russell DSr. Executive Vice PresidentSell2K$916.32$1.4M8K
2025-12-30POLIT JAVIERExecutive Vice PresidentSell558$862.89$482K10K
2025-12-29POLIT JAVIERExecutive Vice PresidentSell2K$867.21$1.8M11K
2025-12-19DENMAN KENNETH Dn/aGift325$0.00$06K
2025-12-15DECKER SUSAN Ln/aGift3K$0.00$09K
2025-11-10RAIKES JEFFREY Sn/aGift4K$0.00$016K
2025-11-07Wilcox William RichardExecutive Vice PresidentSell2K$930.13$2.2M2K
2025-10-24Barbre Tiffany Marien/aSell1K$934.62$1.2M5K
2025-10-24Adamo ClaudineExecutive Vice PresidentSell3K$935.68$2.5M7K
2025-10-22Vachris Roland MichaelPresident and CEOTax withholding1K$944.68$1.1M52K
2025-10-22Vachris Roland MichaelPresident and CEOTax withholding1K$944.68$1.4M53K
2025-10-22Vachris Roland MichaelPresident and CEOGrant14K$0.00$055K
2025-10-22Sullivan John ChristopherExecutive VPTax withholding366$944.68$346K48K
2025-10-22Sullivan John ChristopherExecutive VPTax withholding585$944.68$552K48K
2025-10-22Sullivan John ChristopherExecutive VPTax withholding569$944.68$537K49K
2025-10-22Sullivan John ChristopherExecutive VPTax withholding573$944.68$541K49K
2025-10-22Sullivan John ChristopherExecutive VPTax withholding421$944.68$398K50K
2025-10-22Sullivan John ChristopherExecutive VPGrant5K$0.00$050K
2025-10-22POLIT JAVIERExecutive Vice PresidentTax withholding337$944.68$318K13K
2025-10-22POLIT JAVIERExecutive Vice PresidentTax withholding294$944.68$278K13K
2025-10-22POLIT JAVIERExecutive Vice PresidentTax withholding538$944.68$508K13K
2025-10-22POLIT JAVIERExecutive Vice PresidentGrant4K$0.00$014K
2025-10-22MILLERCHIP GARYExecutive Vice PresidentTax withholding500$944.68$473K17K
2025-10-22MILLERCHIP GARYExecutive Vice PresidentTax withholding313$944.68$296K17K
2025-10-22MILLERCHIP GARYExecutive Vice PresidentGrant6K$0.00$017K
2025-10-22Klauer James CExecutive Vice PresidentTax withholding111$944.68$105K46K
2025-10-22Klauer James CExecutive Vice PresidentTax withholding177$944.68$167K46K
2025-10-22Klauer James CExecutive Vice PresidentTax withholding199$944.68$188K47K
2025-10-22Klauer James CExecutive Vice PresidentTax withholding191$944.68$180K47K
2025-10-22Klauer James CExecutive Vice PresidentTax withholding240$944.68$227K47K
2025-10-22Frates CatonExecutive Vice PresidentTax withholding706$944.68$667K7K
2025-10-22Frates CatonExecutive Vice PresidentTax withholding901$944.68$851K7K
2025-10-22Frates CatonExecutive Vice PresidentTax withholding758$944.68$716K8K
2025-10-22Frates CatonExecutive Vice PresidentTax withholding248$944.68$234K9K
2025-10-22Frates CatonExecutive Vice PresidentTax withholding156$944.68$147K9K
2025-10-22Callans Patrick JExecutive Vice PresidentTax withholding111$944.68$104K61K
2025-10-22Callans Patrick JExecutive Vice PresidentTax withholding177$944.68$167K61K
2025-10-22Callans Patrick JExecutive Vice PresidentTax withholding199$944.68$188K61K

Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are the rarer, stronger signal.

13F holders

Tracked managers holding COST at their latest 13F. JSON

8 of the 30 tracked managers held COST at their latest 13F, $10.57B in total at quarter-end prices. Citadel Advisors is the largest at $3.41B (0.4% of its portfolio) as of 2026-06-30. Over the prior quarter 4 added shares and 3 cut.

FundQuarterSharesValueOf portfolioChange in shares
Citadel Advisors2026-06-303.6M$3.41B0.39%+676K
Fisher Asset Management2026-06-303.3M$3.04B0.91%+33K
AQR Capital Management2026-06-301.3M$1.17B0.41%+226K
D. E. Shaw & Co.2026-06-301.0M$964.1M0.46%-9K
Two Sigma Investments2026-06-301.0M$948.6M0.69%+123K
Millennium Management2026-06-30976K$912.8M0.33%new or n/a
Point72 Asset Management2026-06-30104K$97.0M0.11%-180K
Bridgewater Associates2026-06-3027K$24.8M0.10%-1K

Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.

Financials

SEC XBRL, as filed. JSON

In Q1 2026 (quarter ended 2026-05-10) COSTCO WHOLESALE CORP /NEW reported revenue of $70.53B, up 11.6% from the same quarter a year earlier, and net income of $2.19B (4.93 diluted EPS). In FY 2025 it generated $13.34B of operating cash flow and spent $903.0M on buybacks and $2.18B on dividends. As of 2026-05-10, cash was $18.95B against $5.67B of debt.

Cash
$18.95B
Debt
$5.67B
Equity
$33.51B
Total assets
$86.43B
Shares outstanding
443,478,804

Quarterly, last 8 quarters

QuarterPeriod endRevenueNet incomeMarginDiluted EPS
Q1 20262026-05-10$70.53B$2.19B3.1%4.93
Q4 20252025-11-23$67.31B$2.00B3.0%4.50
Q1 20252025-05-11$63.20B$1.90B3.0%4.28
Q4 20242024-11-24$62.15B$1.80B2.9%4.04
Q1 20242024-05-12$58.52B$1.68B2.9%3.78
Q4 20232023-11-26$57.80B$1.59B2.7%3.58
Q1 20232023-05-07$53.65B$1.30B2.4%2.93
Q4 20222022-11-20$54.44B$1.36B2.5%3.07

Fiscal years, with buybacks and dividends

Fiscal yearEndsRevenueNet incomeOperating cash flowCapexBuybacksDividends
FY 20252025-08-31$275.24B$8.10B$13.34B$5.50B$903.0M$2.18B
FY 20242024-09-01$254.45B$7.37B$11.34B$4.71B$700.0M$9.04B
FY 20232023-09-03$242.29B$6.29B$11.07B$4.32B$676.0M$1.25B
FY 20222022-08-28$226.95B$5.84B$7.39B$3.89B$439.0M$1.50B
FY 20212021-08-29$195.93B$5.01B$8.96B$3.59B$496.0M$5.75B

Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are cash paid to repurchase common stock in the year (XBRL PaymentsForRepurchaseOfCommonStock), not authorizations. Balance sheet lines are as of 2026-05-10; shares outstanding as of 2026-05-27 from the cover page.

What this page is

COSTCO WHOLESALE CORP /NEW in the regulatory record

Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page pulls every series the site collects for one ticker onto one URL, keyed by the SEC's own ticker list, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.

Each section has its own history table, a summary sentence built from the rows (last value, change, range with dates) and its own JSON and CSV links. Nothing on the page is written by a model; the sentences change only when the data does. A page exists only for companies with data in at least two series, and every section says when its source last updated.

This page follows COSTCO WHOLESALE CORP /NEW (COST), SEC CIK 909832, listed on Nasdaq, classified by the SEC as retail-variety stores. The cross-market tables live on the short interest and insider transactions hubs.

Source and method

Short interest
FINRA consolidated short interestTwice a month, about eight business days after settlement. Latest 2026-08-14.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesEvery trading day, loaded the following morning. Latest 2026-09-11.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataTwice a month, a few weeks after the half month ends. Latest 2026-08-13.JSON and CSV
13F holders
SEC EDGAR Form 13F-HRQuarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Financials
SEC XBRL company factsRefreshed weekly from the SEC's structured data; values are as filed in the 10-Q and 10-K. Latest 2026-05-10.JSON and CSV
Insider trades
SEC EDGAR Form 4EDGAR read every 30 minutes; filings are due two business days after the trade. Latest 2026-07-10.JSON and CSV
Company record
EDGAR filing index for CIK 909832Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits
30 requests a minute without a key, 120 a minute with a key from a free account.

Data checks. Every dataset is checked against its source once a day. This dataset passed the last run, 13 Sep 09:50 UTC.

How to read it

  • Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
  • Insider buys next to a crowded short are the combination that has historically preceded squeezes; insider sells next to a crowded short are common and mean little.
  • Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.

Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.

Datasets

Frequently Asked Questions

How much of COST is sold short?
7,364,782 shares were held short at the 2026-08-14 settlement, 4.4 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is COST's daily short volume?
On 2026-09-11, 234,361 of the 581,728 COST shares reported to FINRA were sold short, 40.3% of the day's reported volume. Short volume is a flow for one day, not a position.
Does COST have fails to deliver?
The SEC's latest file shows 7 COST shares failed to deliver at settlement 2026-08-13. Fails are reported per settlement date and published twice a month with a lag.
Are COST insiders buying or selling?
Insiders at COST reported 1 open-market sell worth $847K in the last 90 days and no open-market buys. Sells alone are a weak signal; insiders sell for tax, diversification and estate reasons all the time. Latest filing: RAIKES JEFFREY S on 2026-07-10.
What did COST report last quarter?
In Q1 2026 (quarter ended 2026-05-10) COSTCO WHOLESALE CORP /NEW reported revenue of $70.53B, up 11.6% from the same quarter a year earlier, and net income of $2.19B (4.93 diluted EPS). In FY 2025 it generated $13.34B of operating cash flow and spent $903.0M on buybacks and $2.18B on dividends. As of 2026-05-10, cash was $18.95B against $5.67B of debt.
Which funds hold COST?
8 of the 30 tracked managers held COST at their latest 13F, $10.57B in total at quarter-end prices. Citadel Advisors is the largest at $3.41B (0.4% of its portfolio) as of 2026-06-30. Over the prior quarter 4 added shares and 3 cut.

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.