GMS Inc.
US ˙ NYSE ˙ US36251C1036
DETTE SYMBOL ER IKKE LÆNGERE AKTIVT

SecurityGMS / GMS Inc.
InstitutionSimplex Trading, Llc
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Simplex Trading, Llc ownership in GMS / GMS Inc.

On November 12, 2025 - Simplex Trading, Llc filed a 13F-HR form disclosing ownership of 0 shares of GMS Inc. (US:GMS) valued at $0 USD as of September 30, 2025. The entity filed a previous 13F-HR on August 5, 2025 disclosing 2,175 shares of GMS Inc.. The current value of the position is $0 USD.

Simplex Trading, Llc has a history of taking positions in derivatives of the underlying security (GMS) 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 0 of underlying shares valued at $0 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.

GMS / GMS 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)
2025-11-12 2025-09-30 13F GMS COM 36251C103 0 -100.00 0
2025-08-05 2025-06-30 13F GMS COM 36251C103 2,175 2,175 0 0.0001
2025-05-12 2025-03-31 13F GMS COM 36251C103 0 -113 -100.00 0 0.0000
2025-02-11 2024-12-31 13F GMS COM 36251C103 113 -742 -86.78 0 0.0000
2024-11-08 2024-09-30 13F GMS COM 36251C103 855 855 0 0.0000
2022-08-03 2022-06-30 13F GMS COM 36251C103 0 -105 -100.00 0 -100.00
2022-05-02 2022-03-31 13F GMS COM 36251C103 105 -452 -81.15 5 -84.85 0.0000
2022-02-23 2021-12-31 13F/A-1 GMS COM 36251C103 557 557 33 0.0000
2021-08-12 2021-06-30 13F GMS COM 36251C103 0 -47,289 -100.00 0 -100.00
2021-04-26 2021-03-31 13F GMS COM 36251C103 47,289 46,574 6,513.85 1,974 9,300.00 0.0035
2021-02-02 2020-12-31 13F GMS COM 36251C103 715 715 -98.49 21 -98.94 0.0000
2019-10-15 2019-09-30 13F GMS COM 36251C103 0 -28,011 -100.00 0 -100.00
2019-07-26 2019-06-30 13F GMS COM 36251C103 28,011 1,422 5.35 616 53.23 0.0017
2019-04-18 2019-03-31 13F GMS COM 36251C103 26,589 20,609 344.63 402 356.82 0.0011
2019-01-16 2018-12-31 13F GMS COM 36251C103 5,980 -9,840 -62.20 88 -76.02 0.0003
2018-10-23 2018-09-30 13F GMS COM 36251C103 15,820 14,116 828.40 367 697.83 0.0012
2018-07-30 2018-06-30 13F GMS COM 36251C103 1,704 1,704 46 0.0002
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
(%)
2025-11-12 2025-09-30 13F GMS CALL Call 0 -100.00 0 n/a n/a n/a
2025-08-05 2025-06-30 13F GMS CALL Call 1,000 0 n/a n/a n/a
2024-11-08 2024-09-30 13F GMS CALL Call 0 -100.00 0 n/a n/a n/a
2024-07-25 2024-06-30 13F GMS CALL Call 3,700 -5.13 0 n/a n/a n/a
2024-04-25 2024-03-31 13F GMS CALL Call 3,900 -4.88 0 n/a n/a n/a
2024-02-02 2023-12-31 13F GMS CALL Call 4,100 -59.00 0 n/a n/a n/a
2023-11-01 2023-09-30 13F GMS CALL Call 10,000 -78.68 1 -100.00 n/a n/a n/a
2023-08-04 2023-06-30 13F GMS CALL Call 46,900 -21.83 3 0.00 n/a n/a n/a
2023-04-27 2023-03-31 13F GMS CALL Call 60,000 6,566.67 3 n/a n/a n/a
2023-02-02 2022-12-31 13F GMS CALL Call 900 12.50 0 -100.00 n/a n/a n/a
2022-11-04 2022-09-30 13F GMS CALL Call 800 700.00 32 700.00 n/a n/a n/a
2022-08-03 2022-06-30 13F GMS CALL Call 100 -98.21 4 -98.56 n/a n/a n/a
2022-05-02 2022-03-31 13F GMS CALL Call 5,600 409.09 278 321.21 n/a n/a n/a
2022-02-23 2021-12-31 13F/A GMS CALL Call 1,100 -98.10 66 -97.68 n/a n/a n/a
2022-02-04 2021-12-31 13F GMS CALL Call 58,000 2,843 n/a n/a n/a
2021-10-28 2021-09-30 13F GMS CALL Call 58,000 0.69 2,843 2.56 n/a n/a n/a
2021-08-12 2021-06-30 13F GMS CALL Call 57,600 8,024.12 2,772 -6.35 n/a n/a n/a
2021-04-26 2021-03-31 13F GMS CALL Call 709 50.85 2,960 106.70 n/a n/a n/a
2021-02-02 2020-12-31 13F GMS CALL Call 470 1,324.24 1,432 1,712.66 n/a n/a n/a
2020-10-14 2020-09-30 13F GMS CALL Call 33 1,000.00 79 1,028.57 n/a n/a n/a
2020-07-13 2020-06-30 13F GMS CALL Call 3 -72.73 7 -58.82 n/a n/a n/a
2020-04-29 2020-03-31 13F GMS CALL Call 11 -96.21 17 -97.83 n/a n/a n/a
2020-02-05 2019-12-31 13F GMS CALL Call 290 -13.69 785 -18.57 n/a n/a n/a
2019-10-15 2019-09-30 13F GMS CALL Call 336 3.07 964 34.45 n/a n/a n/a
2019-07-26 2019-06-30 13F GMS CALL Call 326 95.21 717 184.52 n/a n/a n/a
2019-04-18 2019-03-31 13F GMS CALL Call 167 -48.77 252 -64.85 n/a n/a n/a
2019-01-16 2018-12-31 13F GMS CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-10-23 2018-09-30 13F GMS CALL Call 2 4 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
(%)
2025-11-12 2025-09-30 13F GMS PUT Put 0 -100.00 0 n/a n/a n/a
2025-08-05 2025-06-30 13F GMS PUT Put 47,000 5 n/a n/a n/a
2025-05-12 2025-03-31 13F GMS PUT Put 0 -100.00 0 n/a n/a n/a
2025-02-11 2024-12-31 13F GMS PUT Put 300 0.00 0 n/a n/a n/a
2024-11-08 2024-09-30 13F GMS PUT Put 300 -25.00 0 n/a n/a n/a
2024-07-25 2024-06-30 13F GMS PUT Put 400 -96.33 0 -100.00 n/a n/a n/a
2024-04-25 2024-03-31 13F GMS PUT Put 10,900 -26.35 1 0.00 n/a n/a n/a
2024-02-02 2023-12-31 13F GMS PUT Put 14,800 55.79 1 n/a n/a n/a
2023-11-01 2023-09-30 13F GMS PUT Put 9,500 1,087.50 1 n/a n/a n/a
2023-08-04 2023-06-30 13F GMS PUT Put 800 0.00 0 n/a n/a n/a
2023-04-27 2023-03-31 13F GMS PUT Put 800 300.00 0 n/a n/a n/a
2023-02-02 2022-12-31 13F GMS PUT Put 200 -60.00 0 -100.00 n/a n/a n/a
2022-11-04 2022-09-30 13F GMS PUT Put 500 -76.19 20 -78.49 n/a n/a n/a
2022-08-03 2022-06-30 13F GMS PUT Put 2,100 5.00 93 -6.06 n/a n/a n/a
2022-05-02 2022-03-31 13F GMS PUT Put 2,000 -60.00 99 -67.00 n/a n/a n/a
2022-02-23 2021-12-31 13F/A GMS PUT Put 5,000 -73.26 300 -67.25 n/a n/a n/a
2022-02-04 2021-12-31 13F GMS PUT Put 18,700 916 n/a n/a n/a
2021-10-28 2021-09-30 13F GMS PUT Put 18,700 12.65 916 14.64 n/a n/a n/a
2021-08-12 2021-06-30 13F GMS PUT Put 16,600 11,348.28 799 32.07 n/a n/a n/a
2021-04-26 2021-03-31 13F GMS PUT Put 145 400.00 605 587.50 n/a n/a n/a
2021-02-02 2020-12-31 13F GMS PUT Put 29 -80.00 88 -85.45 n/a n/a n/a
2020-04-28 2020-03-31 13F GMS PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-05 2019-12-31 13F GMS PUT Put 393 2.08 1,064 -3.71 n/a n/a n/a
2019-10-15 2019-09-30 13F GMS PUT Put 385 1,141.94 1,105 1,525.00 n/a n/a n/a
2019-07-26 2019-06-30 13F GMS PUT Put 31 47.62 68 119.35 n/a n/a n/a
2019-04-18 2019-03-31 13F GMS PUT Put 21 -32.26 31 -54.41 n/a n/a n/a
2019-01-16 2018-12-31 13F GMS PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-10-23 2018-09-30 13F GMS PUT Put 1 -94.44 2 -95.83 n/a n/a n/a
2018-07-30 2018-06-30 13F GMS PUT Put 18 48 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.