Atkore Inc.
MX ˙ BMV ˙ US0476491081
SecurityMX:ATKR / Atkore Inc.
InstitutionWalleye Capital LLC
Latest Disclosed Ownership6,070 shares
Latest Disclosed Value $ 357,584
Walleye Capital LLC ownership in ATKR / Atkore Inc.

On May 13, 2026 - Walleye Capital LLC filed a 13F-HR/A form disclosing ownership of 6,070 shares of Atkore Inc. (MX:ATKR) valued at $357,584 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 46,755 shares of Atkore Inc.. This represents a change in shares of -87.02% during the quarter.

Walleye Capital LLC has a history of taking positions in derivatives of the underlying security (ATKR) 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 500 of underlying shares valued at $29,455 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.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

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:ATKR / Atkore 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)
2026-05-13 2026-03-31 13F/A-1 ATKORE COM 047649108 6,070 -40,685 -87.02 358 -87.93 0.0015
2026-05-08 2026-03-31 13F ATKORE COM 047649108 6,070 -40,685 358 0.0015
2026-02-13 2025-12-31 13F ATKORE COM 047649108 46,755 41,085 724.60 2,957 732.96 0.0091
2025-11-14 2025-09-30 13F ATKORE COM 047649108 5,670 -85,755 -93.80 356 -94.50 0.0013
2025-08-13 2025-06-30 13F ATKORE COM 047649108 91,425 61,074 201.23 6,450 254.40 0.0251
2025-05-14 2025-03-31 13F ATKORE COM 047649108 30,351 29,820 5,615.82 1,821 4,036.36 0.0082
2025-02-13 2024-12-31 13F ATKORE COM 047649108 531 -19,120 -97.30 44 -97.36 0.0001
2024-11-14 2024-09-30 13F ATKORE COM 047649108 19,651 19,634 115,494.12 1,665 83,150.00 0.0035
2024-08-14 2024-06-30 13F ATKORE COM 047649108 17 -3 -15.00 2 -33.33 0.0000
2024-05-15 2024-03-31 13F ATKORE COM 047649108 20 20 4 0.0000
2023-05-15 2023-03-31 13F ATKORE COM 047649108 0 -1,058 -100.00 0 -100.00
2023-02-14 2022-12-31 13F ATKORE COM 047649108 1,058 1,058 120 0.0022
2021-02-16 2020-12-31 13F ATKORE INTL GROUP COM 047649108 0 -9,287 -100.00 0 -100.00
2020-11-16 2020-09-30 13F ATKORE INTL GROUP COM 047649108 9,287 9,287 211 0.0235
2020-05-15 2020-03-31 13F ATKORE INTL GROUP COM 047649108 0 -11,689 -100.00 0 -100.00
2020-02-14 2019-12-31 13F ATKORE INTL GROUP COM 047649108 11,689 11,689 472 0.0306
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
(%)
2026-05-13 2026-03-31 13F/A ATKORE COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2026-05-08 2026-03-31 13F ATKORE COM Call 0 0 n/a n/a n/a
2026-02-13 2025-12-31 13F ATKORE COM Call 6,000 -30.23 380 -29.68 n/a n/a n/a
2025-11-14 2025-09-30 13F ATKORE COM Call 8,600 -41.50 540 -48.02 n/a n/a n/a
2025-08-13 2025-06-30 13F ATKORE COM Call 14,700 177.36 1,037 227.13 n/a n/a n/a
2025-05-14 2025-03-31 13F ATKORE COM Call 5,300 -49.04 318 -63.44 n/a n/a n/a
2025-02-13 2024-12-31 13F ATKORE COM Call 10,400 868 n/a n/a n/a
2024-11-14 2024-09-30 13F ATKORE COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-08-14 2024-06-30 13F ATKORE COM Call 20,300 -3.33 2,739 -31.47 n/a n/a n/a
2024-05-15 2024-03-31 13F ATKORE COM Call 21,000 -11.39 3,998 5.41 n/a n/a n/a
2024-02-14 2023-12-31 13F ATKORE COM Call 23,700 577.14 3,792 626.44 n/a n/a n/a
2023-11-21 2023-09-30 13F/A ATKORE COM Call 3,500 -67.89 522 -69.28 n/a n/a n/a
2023-11-14 2023-09-30 13F ATKORE COM Call 3,500 522 n/a n/a n/a
2023-08-14 2023-06-30 13F ATKORE COM Call 10,900 -55.51 1,700 -50.62 n/a n/a n/a
2023-05-15 2023-03-31 13F ATKORE COM Call 24,500 84.21 3,442 128.18 n/a n/a n/a
2023-02-14 2022-12-31 13F ATKORE COM Call 13,300 1,508 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
(%)
2026-05-13 2026-03-31 13F/A ATKORE COM Put 500 -82.14 29 -83.62 n/a n/a n/a
2026-05-08 2026-03-31 13F ATKORE COM Put 500 29 n/a n/a n/a
2026-02-13 2025-12-31 13F ATKORE COM Put 2,800 3.70 177 4.73 n/a n/a n/a
2025-11-14 2025-09-30 13F ATKORE COM Put 2,700 -43.75 169 -50.00 n/a n/a n/a
2025-08-13 2025-06-30 13F ATKORE COM Put 4,800 152.63 339 199.12 n/a n/a n/a
2025-05-14 2025-03-31 13F ATKORE COM Put 1,900 -20.83 114 -43.50 n/a n/a n/a
2025-02-13 2024-12-31 13F ATKORE COM Put 2,400 242.86 200 238.98 n/a n/a n/a
2024-11-14 2024-09-30 13F ATKORE COM Put 700 -46.15 59 -66.29 n/a n/a n/a
2024-08-14 2024-06-30 13F ATKORE COM Put 1,300 -35.00 175 -53.95 n/a n/a n/a
2024-05-15 2024-03-31 13F ATKORE COM Put 2,000 -23.08 381 -8.65 n/a n/a n/a
2024-02-14 2023-12-31 13F ATKORE COM Put 2,600 4.00 416 11.83 n/a n/a n/a
2023-11-21 2023-09-30 13F/A ATKORE COM Put 2,500 -50.98 373 -53.21 n/a n/a n/a
2023-11-14 2023-09-30 13F ATKORE COM Put 2,500 373 n/a n/a n/a
2023-08-14 2023-06-30 13F ATKORE COM Put 5,100 -47.96 795 -42.22 n/a n/a n/a
2023-05-15 2023-03-31 13F ATKORE COM Put 9,800 172.22 1,377 237.25 n/a n/a n/a
2023-02-14 2022-12-31 13F ATKORE COM Put 3,600 408 n/a n/a n/a
2020-05-15 2020-03-31 13F ATKORE INTL GROUP COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-14 2019-12-31 13F ATKORE INTL GROUP COM Put 100 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.