Ross Stores, Inc.
MX ˙ BMV ˙ US7782961038
SecurityMX:ROST / Ross Stores, Inc.
InstitutionArizona State Retirement System
Latest Disclosed Ownership88,619 shares
Latest Disclosed Value $ 19,197,534
Arizona State Retirement System reports 3.39% decrease in ownership of ROST / Ross Stores, Inc.

On May 1, 2026 - Arizona State Retirement System filed a 13F-HR form disclosing ownership of 88,619 shares of Ross Stores, Inc. (MX:ROST) valued at $19,197,534 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 91,726 shares of Ross Stores, Inc.. This represents a change in shares of -3.39% during the quarter.

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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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)
2026-05-01 2026-03-31 13F ROSS STORES COM 778296103 88,619 -3,107 -3.39 19,198 16.18 0.1123
2026-01-28 2025-12-31 13F ROSS STORES COM 778296103 91,726 -3,790 -3.97 16,524 13.52 0.0899
2025-11-03 2025-09-30 13F ROSS STORES COM 778296103 95,516 -609 -0.63 14,556 18.69 0.0776
2025-08-13 2025-06-30 13F ROSS STORES COM 778296103 96,125 -658 -0.68 12,264 -0.84 0.0707
2025-05-01 2025-03-31 13F ROSS STORES COM 778296103 96,783 1,871 1.97 12,368 -13.86 0.0787
2025-02-06 2024-12-31 13F ROSS STORES COM 778296103 94,912 -693 -0.72 14,357 -0.22 0.0877
2024-11-12 2024-09-30 13F ROSS STORES COM 778296103 95,605 -1,603 -1.65 14,390 1.86 0.0908
2024-08-05 2024-06-30 13F ROSS STORES COM 778296103 97,208 596 0.62 14,126 -0.37 0.0943
2024-05-07 2024-03-31 13F ROSS STORES COM 778296103 96,612 1,340 1.41 14,179 7.54 0.0981
2024-01-24 2023-12-31 13F ROSS STORES COM 778296103 95,272 -1,151 -1.19 13,185 21.07 0.1001
2023-11-07 2023-09-30 13F ROSS STORES COM 778296103 96,423 -1,350 -1.38 10,891 -0.67 0.0925
2023-08-01 2023-06-30 13F ROSS STORES COM 778296103 97,773 3,010 3.18 10,963 9.01 0.0890
2023-04-27 2023-03-31 13F ROSS STORES COM 778296103 94,763 -582 -0.61 10,057 -9.12 0.0903
2023-02-08 2022-12-31 13F ROSS STORES COM 778296103 95,345 -173 -0.18 11,067 37.48 0.1069
2022-11-07 2022-09-30 13F ROSS STORES COM 778296103 95,518 -1,417 -1.46 8,049 18.23 0.0832
2022-07-28 2022-06-30 13F ROSS STORES COM 778296103 96,935 -577 -0.59 6,808 -22.82 0.0661
2022-05-04 2022-03-31 13F ROSS STORES COM 778296103 97,512 -297 -0.30 8,821 -21.09 0.0711
2022-02-04 2021-12-31 13F ROSS STORES COM 778296103 97,809 -1,636 -1.65 11,178 3.26 0.0852
2021-11-12 2021-09-30 13F ROSS STORES COM 778296103 99,445 -427 -0.43 10,825 -12.59 0.0883
2021-08-02 2021-06-30 13F ROSS STORES COM 778296103 99,872 -452 -0.45 12,384 2.94 0.1007
2021-05-06 2021-03-31 13F ROSS STORES COM 778296103 100,324 -2,368 -2.31 12,030 -4.61 0.1051
2021-01-28 2020-12-31 13F ROSS STORES COM 778296103 102,692 -5,389 -4.99 12,612 25.04 0.1144
2020-11-05 2020-09-30 13F ROSS STORES COM 778296103 108,081 23,777 28.20 10,086 40.36 0.1003
2020-08-04 2020-06-30 13F ROSS STORES COM 778296103 84,304 -30,747 -26.72 7,186 -28.18 0.1014
2020-05-05 2020-03-31 13F ROSS STORES COM 778296103 115,051 13,357 13.13 10,006 -15.48 0.1720
2020-01-27 2019-12-31 13F ROSS STORES COM 778296103 101,694 5,548 5.77 11,839 12.09 0.1426
2019-10-31 2019-09-30 13F ROSS STORES COM 778296103 96,146 -3,263 -3.28 10,562 7.20 0.1289
2019-07-25 2019-06-30 13F ROSS STORES COM 778296103 99,409 -23,193 -18.92 9,853 -13.68 0.1141
2019-04-29 2019-03-31 13F ROSS STORES COM 778296103 122,602 2,729 2.28 11,414 14.45 0.1357
2019-01-28 2018-12-31 13F ROSS STORES COM 778296103 119,873 -44,110 -26.90 9,973 -38.63 0.1283
2018-10-29 2018-09-30 13F ROSS STORES COM 778296103 163,983 -3,255 -1.95 16,251 14.66 0.1534
2018-08-07 2018-06-30 13F ROSS STORES COM 778296103 167,238 57,169 51.94 14,173 65.13 0.1425
2018-05-14 2018-03-31 13F ROSS STORES COM 778296103 110,069 -3,300 -2.91 8,583 -5.66 0.0866
2018-02-09 2017-12-31 13F ROSS STORES COM 778296103 113,369 -16,527 -12.72 9,098 8.48 0.0886
2017-11-14 2017-09-30 13F ROSS STORES COM 778296103 129,896 19,596 17.77 8,387 31.71 0.1002
2017-08-02 2017-06-30 13F ROSS STORES COM 778296103 110,300 -2,300 -2.04 6,368 -14.14 0.0882
2017-05-10 2017-03-31 13F ROSS STORES COM 778296103 112,600 -400 -0.35 7,417 0.05 0.1042
2017-02-10 2016-12-31 13F ROSS STORES COM 778296103 113,000 200 0.18 7,413 2.21 0.1091
2016-11-01 2016-09-30 13F ROSS STORES COM 778296103 112,800 -900 -0.79 7,253 12.52 0.1101
2016-08-15 2016-06-30 13F ROSS STORES COM 778296103 113,700 -7,900 -6.50 6,446 -8.45 0.0905
2016-05-16 2016-03-31 13F ROSS STORES COM 778296103 121,600 600 0.50 7,041 8.14 0.0916
2016-02-12 2015-12-31 13F ROSS STORES COM 778296103 121,000 -3,800 -3.04 6,511 7.64 0.0867
2015-11-20 2015-09-30 13F ROSS STORES COM 778296103 124,800 60,400 93.79 6,049 -0.35 0.0848
2015-02-11 2014-12-31 13F ROSS STORES COM 778296103 64,400 -10,000 -13.44 6,070 7.95 0.0715
2014-11-21 2014-09-30 13F ROSS STORES COM 778296103 74,400 -2,800 -3.63 5,623 10.15 0.0697
2014-08-07 2014-06-30 13F ROSS STORES COM 778296103 77,200 -500 -0.64 5,105 -8.17 0.0617
2014-05-19 2014-03-31 13F ROSS STORES COM 778296103 77,700 -3,600 -4.43 5,559 -8.73 0.0704
2014-02-05 2013-12-31 13F ROSS STORES COM 778296103 81,300 -1,400 -1.69 6,091 1.18 0.0749
2013-11-01 2013-09-30 13F ROSS STORES COM 778296103 82,700 -2,200 -2.59 6,020 9.41 0.0771
2013-09-17 2013-06-30 13F ROSS STORES COM 778296103 84,900 -39,400 -31.70 5,502 -26.98 0.0750
2013-09-17 2013-03-31 13F ROSS STORES COM 778296103 124,300 124,300 7,535 0.1079
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.