Generac Holdings Inc.
MX ˙ BMV ˙ US3687361044
SecurityMX:GNRC / Generac Holdings Inc.
InstitutionWalleye Capital LLC
Latest Disclosed Ownership477 shares
Latest Disclosed Value $ 93,172
Walleye Capital LLC ownership in GNRC / Generac Holdings Inc.

On May 13, 2026 - Walleye Capital LLC filed a 13F-HR/A form disclosing ownership of 477 shares of Generac Holdings Inc. (MX:GNRC) valued at $93,172 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 21,073 shares of Generac Holdings Inc.. This represents a change in shares of -97.74% during the quarter.

Walleye Capital LLC has a history of taking positions in derivatives of the underlying security (GNRC) in the form of stock options. The firm currently holds call options representing 4,300 of underlying shares valued at $839,919 USD and put options representing 11,900 of underlying shares valued at $2,324,427 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:GNRC / Generac Holdings 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 GENERAC HLDGS COM 368736104 477 -20,596 -97.74 93 -96.76 0.0004
2026-05-08 2026-03-31 13F GENERAC HLDGS COM 368736104 477 -20,596 93 0.0004
2026-02-13 2025-12-31 13F GENERAC HLDGS COM 368736104 21,073 20,587 4,236.01 2,874 3,446.91 0.0088
2025-11-14 2025-09-30 13F GENERAC HLDGS COM 368736104 486 -5,208 -91.46 81 -90.06 0.0003
2025-08-13 2025-06-30 13F GENERAC HLDGS COM 368736104 5,694 4,669 455.51 815 531.78 0.0032
2025-05-14 2025-03-31 13F GENERAC HLDGS COM 368736104 1,025 1,025 130 0.0006
2025-02-13 2024-12-31 13F GENERAC HLDGS COM 368736104 0 -479 -100.00 0 -100.00
2024-11-14 2024-09-30 13F GENERAC HLDGS COM 368736104 479 -19,832 -97.64 76 -97.17 0.0002
2024-08-14 2024-06-30 13F GENERAC HLDGS COM 368736104 20,311 19,699 3,218.79 2,686 3,387.01 0.0048
2024-05-15 2024-03-31 13F GENERAC HLDGS COM 368736104 612 -22,067 -97.30 77 -97.37 0.0001
2024-02-14 2023-12-31 13F GENERAC HLDGS COM 368736104 22,679 15,295 207.14 2,931 264.55 0.0062
2023-11-21 2023-09-30 13F/A-1 GENERAC HLDGS COM 368736104 7,384 7,384 805 0.0021
2023-11-14 2023-09-30 13F GENERAC HLDGS COM 368736104 7,384 7,384 805 0.0021
2023-08-14 2023-06-30 13F GENERAC HLDGS COM 368736104 0 -47,935 -100.00 0 -100.00
2023-05-15 2023-03-31 13F GENERAC HLDGS COM 368736104 47,935 -24,291 -33.63 5,177 -28.79 0.0776
2023-02-14 2022-12-31 13F GENERAC HLDGS COM 368736104 72,226 72,226 7,270 0.1326
2022-05-27 2021-12-31 13F/A-01 GENERAC HLDGS COM 368736104 0 -1,253 -100.00 0 -100.00
2022-03-03 2021-12-31 13F GENERAC HLDGS COM 368736104 0 -1,253 0
2021-11-15 2021-09-30 13F GENERAC HLDGS COM 368736104 1,253 -3,127 -71.39 512 -71.84 0.0145
2021-08-16 2021-06-30 13F GENERAC HLDGS COM 368736104 4,380 -1,804 -29.17 1,818 -10.22 0.0620
2021-05-17 2021-03-31 13F GENERAC HLDGS COM 368736104 6,184 -3,031 -32.89 2,025 -3.39 0.1173
2021-02-16 2020-12-31 13F GENERAC HLDGS COM 368736104 9,215 -2,072 -18.36 2,096 -4.12 0.1400
2020-11-16 2020-09-30 13F GENERAC HLDGS COM 368736104 11,287 -8,485 -42.91 2,186 -9.33 0.2436
2020-08-14 2020-06-30 13F GENERAC HLDGS COM 368736104 19,772 10,992 125.19 2,411 194.74 0.5379
2020-05-15 2020-03-31 13F GENERAC HLDGS COM 368736104 8,780 8,780 818 0.1801
2019-08-14 2019-06-30 13F GENERAC HLDGS COM 368736104 0 -150 -100.00 0 -100.00
2019-08-14 2019-03-31 13F/A-1 GENERAC HLDGS COM 368736104 150 150 8 0.0013
2019-05-15 2019-03-31 13F GENERAC HLDGS COM 368736104 150 8 0.0013
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 GENERAC HLDGS COM Call 4,300 -64.46 840 -49.15 n/a n/a n/a
2026-05-08 2026-03-31 13F GENERAC HLDGS COM Call 4,300 840 n/a n/a n/a
2026-02-13 2025-12-31 13F GENERAC HLDGS COM Call 12,100 476.19 1,650 370.09 n/a n/a n/a
2025-11-14 2025-09-30 13F GENERAC HLDGS COM Call 2,100 -68.18 352 -62.86 n/a n/a n/a
2025-08-13 2025-06-30 13F GENERAC HLDGS COM Call 6,600 112.90 945 141.07 n/a n/a n/a
2025-05-14 2025-03-31 13F GENERAC HLDGS COM Call 3,100 -90.31 393 -92.10 n/a n/a n/a
2025-02-13 2024-12-31 13F GENERAC HLDGS COM Call 32,000 17.22 4,962 14.39 n/a n/a n/a
2024-11-14 2024-09-30 13F GENERAC HLDGS COM Call 27,300 5.41 4,337 26.66 n/a n/a n/a
2024-08-14 2024-06-30 13F GENERAC HLDGS COM Call 25,900 -62.30 3,424 -60.48 n/a n/a n/a
2024-05-15 2024-03-31 13F GENERAC HLDGS COM Call 68,700 77.06 8,666 72.82 n/a n/a n/a
2024-02-14 2023-12-31 13F GENERAC HLDGS COM Call 38,800 46.97 5,015 74.34 n/a n/a n/a
2023-11-21 2023-09-30 13F/A GENERAC HLDGS COM Call 26,400 -15.11 2,877 -37.98 n/a n/a n/a
2023-11-14 2023-09-30 13F GENERAC HLDGS COM Call 26,400 2,877 n/a n/a n/a
2023-08-14 2023-06-30 13F GENERAC HLDGS COM Call 31,100 100.65 4,638 177.00 n/a n/a n/a
2023-05-15 2023-03-31 13F GENERAC HLDGS COM Call 15,500 -11.43 1,674 -4.94 n/a n/a n/a
2023-02-14 2022-12-31 13F GENERAC HLDGS COM Call 17,500 -3.31 1,762 -45.38 n/a n/a n/a
2022-11-14 2022-09-30 13F GENERAC HLDGS COM Call 18,100 3,224 n/a n/a n/a
2019-08-14 2019-06-30 13F GENERAC HLDGS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-08-14 2019-03-31 13F/A GENERAC HLDGS COM Call 6,700 343 n/a n/a n/a
2019-05-15 2019-03-31 13F GENERAC HLDGS COM Call 6,700 343 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 GENERAC HLDGS COM Put 11,900 -54.92 2,324 -35.44 n/a n/a n/a
2026-05-08 2026-03-31 13F GENERAC HLDGS COM Put 11,900 2,324 n/a n/a n/a
2026-02-13 2025-12-31 13F GENERAC HLDGS COM Put 26,400 94.12 3,600 58.17 n/a n/a n/a
2025-11-14 2025-09-30 13F GENERAC HLDGS COM Put 13,600 -35.55 2,277 -24.66 n/a n/a n/a
2025-08-13 2025-06-30 13F GENERAC HLDGS COM Put 21,100 2,537.50 3,022 2,891.09 n/a n/a n/a
2025-05-14 2025-03-31 13F GENERAC HLDGS COM Put 800 -98.61 101 -98.87 n/a n/a n/a
2025-02-13 2024-12-31 13F GENERAC HLDGS COM Put 57,700 19.46 8,946 16.59 n/a n/a n/a
2024-11-14 2024-09-30 13F GENERAC HLDGS COM Put 48,300 0.42 7,674 20.66 n/a n/a n/a
2024-08-14 2024-06-30 13F GENERAC HLDGS COM Put 48,100 -41.56 6,360 -38.74 n/a n/a n/a
2024-05-15 2024-03-31 13F GENERAC HLDGS COM Put 82,300 56.46 10,381 52.71 n/a n/a n/a
2024-02-14 2023-12-31 13F GENERAC HLDGS COM Put 52,600 -9.31 6,798 7.58 n/a n/a n/a
2023-11-21 2023-09-30 13F/A GENERAC HLDGS COM Put 58,000 463.11 6,320 311.39 n/a n/a n/a
2023-11-14 2023-09-30 13F GENERAC HLDGS COM Put 58,000 6,320 n/a n/a n/a
2023-08-14 2023-06-30 13F GENERAC HLDGS COM Put 10,300 0.98 1,536 39.51 n/a n/a n/a
2023-05-15 2023-03-31 13F GENERAC HLDGS COM Put 10,200 -26.62 1,102 -21.30 n/a n/a n/a
2023-02-14 2022-12-31 13F GENERAC HLDGS COM Put 13,900 43.30 1,399 -19.04 n/a n/a n/a
2022-11-14 2022-09-30 13F GENERAC HLDGS COM Put 9,700 1,728 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.