Costco Wholesale Corporation
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionScotia Capital Inc.
Latest Disclosed Ownership388,703 shares
Latest Disclosed Value $ 387,314,718
Scotia Capital Inc. ownership in COST / Costco Wholesale Corporation

On May 13, 2026 - Scotia Capital Inc. filed a 13F-HR form disclosing ownership of 388,703 shares of Costco Wholesale Corporation (MX:COST) valued at $387,314,718 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 393,682 shares of Costco Wholesale Corporation. This represents a change in shares of -1.26% during the quarter.

Scotia Capital Inc. has a history of taking positions in derivatives of the underlying security (COST) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:COST / Costco Wholesale Corporation Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 388,703 -4,979 -1.26 387,315 14.10 1.5920
2026-02-12 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 393,682 8,257 2.14 339,464 -4.85 1.3670
2025-11-14 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 385,425 13,576 3.65 356,768 -3.08 1.5173
2025-08-13 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 371,849 -2,810 -0.75 368,097 3.88 1.7386
2025-05-09 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 374,659 -10,693 -2.77 354,346 0.35 1.9001
2025-02-13 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 385,352 13,869 3.73 353,103 7.22 1.8601
2024-11-13 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 371,483 -548 -0.15 329,332 4.15 1.7630
2024-08-14 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 372,031 -1,904 -0.51 316,223 15.43 1.8520
2024-05-14 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 373,935 -13,342 -3.45 273,954 7.17 1.6301
2024-02-12 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 387,277 -3,438 -0.88 255,629 15.80 1.6479
2023-11-14 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 390,715 -12,641 -3.13 220,746 1.65 1.5967
2023-08-03 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 403,356 41,178 11.37 217,160 20.67 1.4904
2023-05-11 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 362,178 6,102 1.71 179,965 10.71 1.3138
2023-02-09 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 356,076 6,706 1.92 162,557 -1.48 1.2495
2022-11-10 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 349,370 6,193 1.80 164,997 0.31 1.3345
2022-08-05 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 343,177 37,023 12.09 164,481 -6.70 1.2237
2022-05-09 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 306,154 -9,225 -2.93 176,299 -1.53 1.1142
2022-02-11 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 315,379 6,726 2.18 179,035 29.09 1.1743
2021-11-12 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 308,653 -20,379 -6.19 138,693 6.53 1.0091
2021-08-12 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 329,032 3,583 1.10 130,189 13.49 0.9526
2021-05-06 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 325,449 72,275 28.55 114,711 20.25 0.9308
2021-02-11 2020-12-31 13F COSTCO WHSL CORP COM 22160K105 253,174 4,946 1.99 95,391 8.25 0.8763
2020-11-12 2020-09-30 13F COSTCO WHSL CORP COM 22160K105 248,228 -4,428 -1.75 88,121 14.76 0.9544
2020-08-11 2020-06-30 13F COSTCO WHSL CORP COM 22160K105 252,656 22,591 9.82 76,790 17.07 1.0743
2020-05-15 2020-03-31 13F COSTCO WHSL CORP COM 22160K105 230,065 23,822 11.55 65,596 8.17 0.9138
2020-02-13 2019-12-31 13F COSTCO WHSL CORP COM 22160K105 206,243 25,578 14.16 60,640 16.51 0.6741
2019-11-14 2019-09-30 13F COSTCO WHSL CORP COM 22160K105 180,665 49,306 37.54 52,049 49.92 0.6133
2019-08-13 2019-06-30 13F COSTCO WHSL CORP COM 22160K105 131,359 11,575 9.66 34,719 19.75 0.4230
2019-05-15 2019-03-31 13F COSTCO WHSL CORP COM 22160K105 119,784 1,195 1.01 28,994 20.04 0.3731
2019-02-11 2018-12-31 13F/A-1 COSTCO WHSL CORP COM 22160K105 118,589 1,110 0.94 24,153 -12.47 0.3571
2019-02-11 2018-12-31 13F COSTCO WHSL CORP COM 22160K105 117,479 27,594
2018-11-14 2018-09-30 13F COSTCO WHSL CORP COM 22160K105 117,479 -10,494 -8.20 27,594 15.40 0.3494
2018-08-13 2018-06-30 13F COSTCO WHSL CORP COM 22160K105 127,973 2,514 2.00 23,911 1.17 0.3330
2018-05-15 2018-03-31 13F COSTCO WHSL CORP COM 22160K105 125,459 -7,064 -5.33 23,634 -4.19 0.3261
2018-02-13 2017-12-31 13F COSTCO WHSL CORP COM 22160K105 132,523 -24,056 -15.36 24,668 -4.07 0.3289
2017-11-14 2017-09-30 13F COSTCO WHSL CORP COM 22160K105 156,579 68,742 78.26 25,715 83.08 0.3661
2017-08-15 2017-06-30 13F COSTCO WHSL CORP COM 22160K105 87,837 25,145 40.11 14,046 33.50 0.2370
2017-05-15 2017-03-31 13F COSTCO WHSL CORP COM 22160K105 62,692 -19,064 -23.32 10,521 -19.67 0.1797
2017-02-14 2016-12-31 13F COSTCO WHSL CORP COM 22160K105 81,756 7,361 9.89 13,098 17.03 0.2090
2016-11-14 2016-09-30 13F COSTCO WHSL CORP COM 22160K105 74,395 16,948 29.50 11,192 24.01 0.2053
2016-08-11 2016-06-30 13F COSTCO WHSL CORP COM 22160K105 57,447 5,404 10.38 9,025 10.01 0.1831
2016-05-12 2016-03-31 13F COSTCO WHSL CORP COM 22160K105 52,043 22,441 75.81 8,204 71.63 0.1792
2016-02-11 2015-12-31 13F COSTCO WHSL CORP COM 22160K105 29,602 -850 -2.79 4,780 8.64 0.1084
2015-11-13 2015-09-30 13F COSTCO WHSL CORP COM 22160K105 30,452 1,740 6.06 4,400 13.34 0.0995
2015-08-13 2015-06-30 13F COSTCO WHSL CORP COM 22160K105 28,712 8,882 44.79 3,882 29.18 0.0779
2015-05-15 2015-03-31 13F COSTCO WHSL CORP COM 22160K105 19,830 15 0.08 3,005 6.98 0.0775
2015-02-13 2014-12-31 13F COSTCO WHSL CORP COM 22160K105 19,815 2,049 11.53 2,809 26.19 0.0736
2014-11-14 2014-09-30 13F COSTCO WHSL CORP COM 22160K105 17,766 140 0.79 2,226 9.66 0.0475
2014-08-14 2014-06-30 13F COSTCO WHSL CORP COM 22160K105 17,626 5,853 49.72 2,030 54.37 0.0439
2014-05-14 2014-03-31 13F COSTCO WHSL CORP COM 22160K105 11,773 585 5.23 1,315 -1.28 0.0293
2014-02-14 2013-12-31 13F COSTCO WHSL CORP COM 22160K105 11,188 -1,770 -13.66 1,332 -10.78 0.0318
2013-11-14 2013-09-30 13F COSTCO WHSL CORP COM 22160K105 12,958 767 6.29 1,493 10.76 0.0400
2013-08-13 2013-06-30 13F COSTCO WHSL CORP COM 22160K105 12,191 12,191 1,348 0.0520
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2016-08-11 2016-06-30 13F COSTCO WHSL CORP COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2016-05-12 2016-03-31 13F COSTCO WHSL CORP COM Call 16,400 0.00 2,584 -2.45 n/a n/a n/a
2016-02-11 2015-12-31 13F COSTCO WHSL CORP COM Call 16,400 2,649 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2016-08-11 2016-06-30 13F COSTCO WHSL CORP COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2016-05-12 2016-03-31 13F COSTCO WHSL CORP COM Put 16,400 0.00 2,584 -2.45 n/a n/a n/a
2016-02-11 2015-12-31 13F COSTCO WHSL CORP COM Put 16,400 2,649 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.