CubeSmart
US ˙ NYSE ˙ US2296631094

SecurityCUBE / CubeSmart
InstitutionCitadel Advisors Llc
ManagerKen Griffin
Latest Disclosed Ownership1,616,470 shares
Latest Disclosed Value $ 59,243,625
Citadel Advisors Llc ownership in CUBE / CubeSmart

On May 15, 2026 - Citadel Advisors Llc filed a 13F-HR form disclosing ownership of 1,616,470 shares of CubeSmart (US:CUBE) valued at $59,243,626 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 5,209,257 shares of CubeSmart. This represents a change in shares of -68.97% during the quarter. The current value of the position is $65,159,906 USD.

Citadel Advisors Llc has a history of taking positions in derivatives of the underlying security (CUBE) in the form of stock options. The firm currently holds call options representing 41,600 of underlying shares valued at $1,524,640 USD and put options representing 8,100 of underlying shares valued at $296,865 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.

CUBE / CubeSmart 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)
2026-05-15 2026-03-31 13F CUBESMART COM 229663109 1,616,470 -3,592,787 -68.97 59,244 -68.45 0.0084
2026-02-17 2025-12-31 13F CUBESMART COM 229663109 5,209,257 3,993,172 328.36 187,794 279.79 0.0282
2025-11-14 2025-09-30 13F CUBESMART COM 229663109 1,216,085 1,216,085 49,446 0.0075
2025-08-14 2025-06-30 13F CUBESMART COM 229663109 0 -1,574,797 -100.00 0 -100.00
2025-05-15 2025-03-31 13F CUBESMART COM 229663109 1,574,797 1,117,065 244.04 67,260 242.93 0.0128
2025-02-14 2024-12-31 13F CUBESMART COM 229663109 457,732 415,049 972.40 19,614 753.85 0.0034
2024-11-14 2024-09-30 13F CUBESMART COM 229663109 42,683 42,683 2,298 0.0004
2024-02-14 2023-12-31 13F CUBESMART COM 229663109 0 -30,806 -100.00 0 -100.00
2023-11-14 2023-09-30 13F CUBESMART COM 229663109 30,806 -126,019 -80.36 1,175 -83.24 0.0003
2023-08-14 2023-06-30 13F CUBESMART COM 229663109 156,825 -27,615 -14.97 7,004 -17.84 0.0014
2023-05-15 2023-03-31 13F CUBESMART COM 229663109 184,440 71,453 63.24 8,525 87.46 0.0019
2023-02-14 2022-12-31 13F CUBESMART COM 229663109 112,987 -351,137 -75.66 4,548 -75.54 0.0011
2022-11-14 2022-09-30 13F CUBESMART COM 229663109 464,124 413,647 819.48 18,592 761.94 0.0042
2022-08-15 2022-06-30 13F CUBESMART COM 229663109 50,477 -229,378 -81.96 2,157 -85.19 0.0006
2022-05-16 2022-03-31 13F CUBESMART COM 229663109 279,855 -1,175,279 -80.77 14,561 -82.42 0.0030
2022-02-14 2021-12-31 13F CUBESMART COM 229663109 1,455,134 1,201,121 472.86 82,811 572.88 0.0169
2021-11-15 2021-09-30 13F CUBESMART Cmn 229663109 254,013 198,795 360.02 12,307 381.12 0.0026
2021-08-16 2021-06-30 13F CUBESMART COM 229663109 55,218 -383,179 -87.40 2,558 -84.58 0.0006
2021-05-21 2021-03-31 13F/A-1 CUBESMART COM 229663109 438,397 -32,133 -6.83 16,585 4.87 0.0041
2021-05-17 2021-03-31 13F CUBESMART COM 229663109 438,397 -32,133 16,585 0.0041
2021-02-16 2020-12-31 13F CUBESMART COM 229663109 470,530 364,298 342.93 15,815 360.81 0.0041
2020-11-16 2020-09-30 13F CUBESMART COM 229663109 106,232 30,501 40.28 3,432 67.91 0.0010
2020-08-14 2020-06-30 13F CUBESMART Cmn 229663109 75,731 65,574 645.60 2,044 651.47 0.0007
2020-05-15 2020-03-31 13F CUBESMART Cmn 229663109 10,157 -214,109 -95.47 272 -96.15 0.0001
2020-02-14 2019-12-31 13F CUBESMART Cmn 229663109 224,266 -468,617 -67.63 7,060 -70.80 0.0031
2019-11-14 2019-09-30 13F CUBESMART Cmn 229663109 692,883 322,812 87.23 24,181 95.40 0.0114
2019-08-14 2019-06-30 13F CUBESMART Cmn 229663109 370,071 162,265 78.08 12,375 85.84 0.0057
2019-05-15 2019-03-31 13F CUBESMART Cmn 229663109 207,806 -485,455 -70.02 6,659 -66.52 0.0033
2019-02-14 2018-12-31 13F CUBESMART Cmn 229663109 693,261 645,379 1,347.85 19,890 1,356.08 0.0109
2018-11-13 2018-09-30 13F CUBESMART Cmn 229663109 47,882 -45,076 -48.49 1,366 -54.39 0.0006
2018-08-14 2018-06-30 13F/A-1 CUBESMART Cmn 229663109 92,958 -935,055 -90.96 2,995 -89.67 0.0015
2018-08-10 2018-06-30 13F CUBESMART Cmn 229663109 92,958 -935,055 2,995
2018-05-14 2018-03-31 13F/A-1 CUBESMART Cmn 229663109 1,028,013 -27,024 -2.56 28,990 -4.99 0.0159
2018-05-11 2018-03-31 13F CUBESMART Cmn 229663109 1,028,013 -27,024 28,990
2018-02-09 2017-12-31 13F CUBESMART Cmn 229663109 1,055,037 -509,808 -32.58 30,512 -24.89 0.0186
2017-11-09 2017-09-30 13F CUBESMART Cmn 229663109 1,564,845 1,160,777 287.27 40,623 318.19 0.0312
2017-08-11 2017-06-30 13F CUBESMART Cmn 229663109 404,068 222,941 123.09 9,714 106.59 0.0082
2017-05-12 2017-03-31 13F CUBESMART Cmn 229663109 181,127 -307,725 -62.95 4,702 -64.07 0.0043
2017-02-10 2016-12-31 13F CUBESMART Cmn 229663109 488,852 64,004 15.07 13,087 13.00 0.0132
2017-01-31 2016-09-30 13F/A-1 CUBESMART Cmn 229663109 424,848 156,536 58.34 11,581 39.78 0.0116
2016-11-10 2016-09-30 13F CUBESMART Cmn 229663109 424,848 11,581
2017-01-31 2016-06-30 13F/A-1 CUBESMART Cmn 229663109 268,312 -427,238 -61.42 8,285 -64.23 0.0092
2016-08-12 2016-06-30 13F CUBESMART Cmn 229663109 268,312 8,285
2017-01-31 2016-03-31 13F/A-1 CUBESMART Cmn 229663109 695,550 400,166 135.47 23,162 156.08 0.0292
2016-05-13 2016-03-31 13F CUBESMART Cmn 229663109 695,550 23,162
2017-01-31 2015-12-31 13F/A-1 CUBESMART Cmn 229663109 295,384 -294,099 -49.89 9,045 -43.61 0.0099
2016-02-12 2015-12-31 13F CUBESMART Cmn 229663109 295,384 9,045
2015-11-16 2015-09-30 13F CUBESMART Cmn 229663109 589,483 -367,072 -38.37 16,040 -27.60 0.0155
2015-08-14 2015-06-30 13F CUBESMART Cmn 229663109 956,555 -687,052 -41.80 22,154 -44.19 0.0194
2015-05-15 2015-03-31 13F CUBESMART Cmn 229663109 1,643,607 30,371 1.88 39,693 11.48 0.0442
2015-02-17 2014-12-31 13F CUBESMART Cmn 229663109 1,613,236 477,605 42.06 35,604 74.37 0.0431
2014-11-14 2014-09-30 13F CUBESMART Cmn 229663109 1,135,631 931,735 456.97 20,419 446.69 0.0256
2014-08-14 2014-06-30 13F CUBESMART Cmn 229663109 203,896 29,987 17.24 3,735 25.17 0.0050
2014-05-15 2014-03-31 13F CUBESMART Cmn 229663109 173,909 114,881 194.62 2,984 217.11 0.0041
2014-02-14 2013-12-31 13F CUBESMART Cmn 229663109 59,028 38,840 192.39 941 161.39 0.0012
2013-11-14 2013-09-30 13F CUBESMART Cmn 229663109 20,188 -292,561 -93.54 360 -92.80 0.0005
2013-08-14 2013-06-30 13F CUBESMART Cmn 229663109 312,749 312,749 4,998 0.0086
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
(%)
2026-05-15 2026-03-31 13F CUBESMART COM Call 41,600 66.40 1,525 69.15 n/a n/a n/a
2026-02-17 2025-12-31 13F CUBESMART COM Call 25,000 -18.30 901 -27.57 n/a n/a n/a
2025-11-14 2025-09-30 13F CUBESMART COM Call 30,600 31.90 1,244 26.17 n/a n/a n/a
2025-08-14 2025-06-30 13F CUBESMART COM Call 23,200 -65.27 986 -65.44 n/a n/a n/a
2025-05-15 2025-03-31 13F CUBESMART COM Call 66,800 29.96 2,853 29.56 n/a n/a n/a
2025-02-14 2024-12-31 13F CUBESMART COM Call 51,400 -7.89 2,202 -26.67 n/a n/a n/a
2024-11-14 2024-09-30 13F CUBESMART COM Call 55,800 192.15 3,004 248.38 n/a n/a n/a
2024-08-14 2024-06-30 13F CUBESMART COM Call 19,100 -79.17 863 -79.21 n/a n/a n/a
2024-05-15 2024-03-31 13F CUBESMART COM Call 91,700 154.72 4,147 148.56 n/a n/a n/a
2024-02-14 2023-12-31 13F CUBESMART COM Call 36,000 88.48 1,669 129.12 n/a n/a n/a
2023-11-14 2023-09-30 13F CUBESMART COM Call 19,100 81.90 728 55.56 n/a n/a n/a
2023-08-14 2023-06-30 13F CUBESMART COM Call 10,500 133.33 469 126.09 n/a n/a n/a
2023-05-15 2023-03-31 13F CUBESMART COM Call 4,500 -31.82 208 -21.89 n/a n/a n/a
2023-02-14 2022-12-31 13F CUBESMART COM Call 6,600 266 n/a n/a n/a
2022-08-15 2022-06-30 13F CUBESMART COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-05-16 2022-03-31 13F CUBESMART COM Call 5,500 -82.76 286 -84.24 n/a n/a n/a
2022-02-14 2021-12-31 13F CUBESMART COM Call 31,900 -2.45 1,815 14.58 n/a n/a n/a
2021-11-15 2021-09-30 13F CUBESMART Cmn Call 32,700 427.42 1,584 451.92 n/a n/a n/a
2021-08-16 2021-06-30 13F CUBESMART COM Call 6,200 -20.51 287 -2.71 n/a n/a n/a
2021-05-21 2021-03-31 13F/A CUBESMART COM Call 7,800 -10.34 295 1.03 n/a n/a n/a
2021-05-17 2021-03-31 13F CUBESMART COM Call 7,800 295 n/a n/a n/a
2021-02-16 2020-12-31 13F CUBESMART COM Call 8,700 29.85 292 35.19 n/a n/a n/a
2020-11-16 2020-09-30 13F CUBESMART COM Call 6,700 -69.82 216 -63.94 n/a n/a n/a
2020-08-14 2020-06-30 13F CUBESMART Cmn Call 22,200 113.46 599 114.70 n/a n/a n/a
2020-05-15 2020-03-31 13F CUBESMART Cmn Call 10,400 15.56 279 -1.41 n/a n/a n/a
2020-02-14 2019-12-31 13F CUBESMART Cmn Call 9,000 32.35 283 19.41 n/a n/a n/a
2019-11-14 2019-09-30 13F CUBESMART Cmn Call 6,800 237 n/a n/a n/a
2018-11-13 2018-09-30 13F CUBESMART Cmn Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-08-14 2018-06-30 13F/A CUBESMART Cmn Call 10,800 38.46 348 58.18 n/a n/a n/a
2018-08-10 2018-06-30 13F CUBESMART Cmn Call 10,800 348 n/a n/a n/a
2018-05-14 2018-03-31 13F/A CUBESMART Cmn Call 7,800 220 n/a n/a n/a
2018-05-11 2018-03-31 13F CUBESMART Cmn Call 7,800 220 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
(%)
2026-05-15 2026-03-31 13F CUBESMART COM Put 8,100 -45.64 297 -44.88 n/a n/a n/a
2026-02-17 2025-12-31 13F CUBESMART COM Put 14,900 6.43 537 -5.62 n/a n/a n/a
2025-11-14 2025-09-30 13F CUBESMART COM Put 14,000 -58.82 569 -60.62 n/a n/a n/a
2025-08-14 2025-06-30 13F CUBESMART COM Put 34,000 -33.20 1,445 -33.50 n/a n/a n/a
2025-05-15 2025-03-31 13F CUBESMART COM Put 50,900 -10.86 2,174 -11.16 n/a n/a n/a
2025-02-14 2024-12-31 13F CUBESMART COM Put 57,100 98.95 2,447 58.42 n/a n/a n/a
2024-11-14 2024-09-30 13F CUBESMART COM Put 28,700 -30.17 1,545 -16.81 n/a n/a n/a
2024-08-14 2024-06-30 13F CUBESMART COM Put 41,100 74.89 1,856 74.76 n/a n/a n/a
2024-05-15 2024-03-31 13F CUBESMART COM Put 23,500 30.56 1,063 27.34 n/a n/a n/a
2024-02-14 2023-12-31 13F CUBESMART COM Put 18,000 -73.21 834 -67.45 n/a n/a n/a
2023-11-14 2023-09-30 13F CUBESMART COM Put 67,200 18.10 2,562 0.83 n/a n/a n/a
2023-08-14 2023-06-30 13F CUBESMART COM Put 56,900 -31.77 2,541 -34.07 n/a n/a n/a
2023-05-15 2023-03-31 13F CUBESMART COM Put 83,400 53.59 3,855 76.38 n/a n/a n/a
2023-02-14 2022-12-31 13F CUBESMART COM Put 54,300 722.73 2,186 727.65 n/a n/a n/a
2022-11-14 2022-09-30 13F CUBESMART COM Put 6,600 -41.59 264 -45.34 n/a n/a n/a
2022-08-15 2022-06-30 13F CUBESMART COM Put 11,300 -13.74 483 -29.18 n/a n/a n/a
2022-05-16 2022-03-31 13F CUBESMART COM Put 13,100 61.73 682 47.94 n/a n/a n/a
2022-02-14 2021-12-31 13F CUBESMART COM Put 8,100 -60.29 461 -53.34 n/a n/a n/a
2021-11-15 2021-09-30 13F CUBESMART Cmn Put 20,400 988 n/a n/a n/a
2019-05-15 2019-03-31 13F CUBESMART Cmn Put 0 -100.00 0 -100.00 n/a n/a n/a
2019-02-14 2018-12-31 13F CUBESMART Cmn Put 7,400 -54.32 212 -54.11 n/a n/a n/a
2018-11-13 2018-09-30 13F CUBESMART Cmn Put 16,200 462 n/a n/a n/a
2018-08-14 2018-06-30 13F/A CUBESMART Cmn Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-05-14 2018-03-31 13F/A CUBESMART Cmn Put 11,000 14.58 310 11.51 n/a n/a n/a
2018-05-11 2018-03-31 13F CUBESMART Cmn Put 11,000 310 n/a n/a n/a
2018-02-09 2017-12-31 13F CUBESMART Cmn Put 9,600 278 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.