SiteOne Landscape Supply, Inc.
MX ˙ BMV ˙ US82982L1035
SecurityMX:SITE / SiteOne Landscape Supply, Inc.
InstitutionWalleye Trading LLC
Latest Disclosed Ownership2,954 shares
Latest Disclosed Value $ 393,207
Walleye Trading LLC ownership in SITE / SiteOne Landscape Supply, Inc.

On May 8, 2026 - Walleye Trading LLC filed a 13F-HR form disclosing ownership of 2,954 shares of SiteOne Landscape Supply, Inc. (MX:SITE) valued at $393,207 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 5,115 shares of SiteOne Landscape Supply, Inc.. This represents a change in shares of -42.25% during the quarter.

Walleye Trading LLC has a history of taking positions in derivatives of the underlying security (SITE) in the form of stock options. The firm currently holds call options representing 3,000 of underlying shares valued at $399,330 USD and put options representing 2,400 of underlying shares valued at $319,464 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:SITE / SiteOne Landscape Supply, Inc. 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)
2026-05-08 2026-03-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 2,954 -2,161 -42.25 393 -38.30 0.0007
2026-02-13 2025-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 5,115 5,115 637 0.0009
2022-02-14 2021-12-31 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 0 -1,154 -100.00 0 -100.00
2021-11-15 2021-09-30 13F SITEONE LANDSCAPE SUPPLY COM 82982L103 1,154 1,154 230 0.0008
2018-08-14 2018-06-30 13F DDR COM 23317H102 0 -100,998 -100.00 0 -100.00
2018-05-15 2018-03-31 13F DDR COM 23317H102 100,998 35,860 55.05 740 26.71 0.0042
2018-02-14 2017-12-31 13F DDR COM 23317H102 65,138 -68,280 -51.18 584 -52.21 0.0028
2017-11-14 2017-09-30 13F DDR COM 23317H102 133,418 133,418 1,222 0.0060
2017-08-14 2017-06-30 13F DDR COM 23317H102 0 -485,659 -100.00 0 -100.00
2017-05-15 2017-03-31 13F DDR COM 23317H102 485,659 373,229 331.97 6,085 254.40 0.0427
2017-02-14 2016-12-31 13F DDR COM 23317H102 112,430 -35,928 -24.22 1,717 -33.60 0.0120
2016-11-14 2016-09-30 13F DDR COM 23317H102 148,358 -74,195 -33.34 2,586 -35.94 0.0169
2016-08-15 2016-06-30 13F DDR COM 23317H102 222,553 222,553 0.00 4,037 0.0267
2016-05-16 2016-03-31 13F DDR COM 23317H102 0 -175,747 -100.00 0 -100.00
2016-02-16 2015-12-31 13F DDR COM 23317H102 175,747 121,385 223.29 2,960 254.07 0.0288
2015-11-16 2015-09-30 13F DDR COM 23317H102 54,362 -236,624 -81.32 836 -81.42 0.0077
2015-08-14 2015-06-30 13F DDR COM 23317H102 290,986 -16,608 -5.40 4,499 -21.44 0.0445
2015-05-15 2015-03-31 13F DDR COM 23317H102 307,594 302,898 6,450.13 5,727 6,559.30 0.0574
2015-02-17 2014-12-31 13F DDR COM 23317H102 4,696 4,402 1,497.28 86 1,620.00 0.0008
2014-11-14 2014-09-30 13F DDR COM 23317H102 294 294 -97.68 5 -97.49 0.0001
2014-02-14 2013-12-31 13F DDR COM 23317H102 0 -12,671 -100.00 0 -100.00
2013-11-14 2013-09-30 13F DDR COM 23317H102 12,671 9,071 251.97 199 231.67 0.0021
2013-08-14 2013-06-30 13F DDR COM 23317H102 3,600 3,600 60 0.0006
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
(%)
2026-05-08 2026-03-31 13F SITEONE LANDSCAPE SUPPLY COM Call 3,000 87.50 399 100.50 n/a n/a n/a
2026-02-13 2025-12-31 13F SITEONE LANDSCAPE SUPPLY COM Call 1,600 199 n/a n/a n/a
2019-02-14 2018-12-31 13F DDR COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-11-14 2018-09-30 13F DDR COM Call 17,600 -55.78 236 -66.85 n/a n/a n/a
2018-08-14 2018-06-30 13F DDR COM Call 39,800 -72.74 712 -33.46 n/a n/a n/a
2018-05-15 2018-03-31 13F DDR COM Call 146,000 2,820.00 1,070 2,331.82 n/a n/a n/a
2018-02-14 2017-12-31 13F DDR COM Call 5,000 900.00 44 780.00 n/a n/a n/a
2017-11-14 2017-09-30 13F DDR COM Call 500 150.00 5 150.00 n/a n/a n/a
2017-08-14 2017-06-30 13F DDR COM Call 200 -80.00 2 -84.62 n/a n/a n/a
2017-05-15 2017-03-31 13F DDR COM Call 1,000 13 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
(%)
2026-05-08 2026-03-31 13F SITEONE LANDSCAPE SUPPLY COM Put 2,400 -75.76 319 -74.13 n/a n/a n/a
2026-02-13 2025-12-31 13F SITEONE LANDSCAPE SUPPLY COM Put 9,900 1,233 n/a n/a n/a
2019-02-14 2018-12-31 13F DDR COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-11-14 2018-09-30 13F DDR COM Put 14,150 -34.79 189 -51.29 n/a n/a n/a
2018-08-14 2018-06-30 13F DDR COM Put 21,700 -85.26 388 -64.04 n/a n/a n/a
2018-05-15 2018-03-31 13F DDR COM Put 147,200 95.48 1,079 59.85 n/a n/a n/a
2018-02-14 2017-12-31 13F DDR COM Put 75,300 -29.43 675 -30.98 n/a n/a n/a
2017-11-14 2017-09-30 13F DDR COM Put 106,700 57.61 978 59.28 n/a n/a n/a
2017-08-14 2017-06-30 13F DDR COM Put 67,700 22,466.67 614 15,250.00 n/a n/a n/a
2017-05-15 2017-03-31 13F DDR COM Put 300 4 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.