Advanced Drainage Systems, Inc.
MX ˙ BMV ˙ US00790R1041
SecurityMX:WMS / Advanced Drainage Systems, Inc.
InstitutionScopus Asset Management, L.p.
Latest Disclosed Ownership57,966 shares
Latest Disclosed Value $ 7,948,878
Scopus Asset Management, L.p. ownership in WMS / Advanced Drainage Systems, Inc.

On May 15, 2026 - Scopus Asset Management, L.p. filed a 13F-HR form disclosing ownership of 57,966 shares of Advanced Drainage Systems, Inc. (MX:WMS) valued at $7,948,878 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 117,841 shares of Advanced Drainage Systems, Inc.. This represents a change in shares of -50.81% during the quarter.

Scopus Asset Management, L.p. has a history of taking positions in derivatives of the underlying security (WMS) in the form of stock options. The firm currently holds call options representing 70,000 of underlying shares valued at $9,599,100 USD and put options representing 60,000 of underlying shares valued at $8,227,800 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:WMS / Advanced Drainage Systems, 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)
2026-05-15 2026-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 57,966 -59,875 -50.81 7,949 -53.43 0.1377
2026-02-17 2025-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 117,841 -34,138 -22.46 17,067 -19.04 0.2790
2025-11-14 2025-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 151,979 74,777 96.86 21,079 137.72 0.2861
2025-08-14 2025-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 77,202 77,202 8,867 0.1491
2025-02-14 2024-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 0 -43,662 -100.00 0 -100.00
2024-11-14 2024-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 43,662 7,451 20.58 6,862 18.15 0.1216
2024-08-14 2024-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 36,211 -19,000 -34.41 5,808 -38.93 0.1170
2024-05-15 2024-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 55,211 -16,500 -23.01 9,510 -5.71 0.1967
2024-02-14 2023-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 71,711 -3,750 -4.97 10,085 17.42 0.2549
2023-11-14 2023-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 75,461 70,663 1,472.76 8,590 1,475.96 0.2440
2023-08-14 2023-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 4,798 4,798 546 0.0153
2022-11-14 2022-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 0 -8,371 -100.00 0 -100.00
2022-08-15 2022-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 8,371 -101,533 -92.38 754 -94.23 0.0415
2022-05-16 2022-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 109,904 35,474 47.66 13,058 28.88 0.3235
2022-02-14 2021-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 74,430 48,398 185.92 10,132 259.80 0.2176
2021-11-15 2021-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 26,032 -82,600 -76.04 2,816 -77.76 0.0477
2021-08-16 2021-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 108,632 -41,826 -27.80 12,663 -18.60 0.1649
2021-05-17 2021-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 150,458 -39,550 -20.81 15,556 -2.05 0.1960
2021-02-16 2020-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 190,008 78,967 71.12 15,881 129.06 0.2549
2020-11-16 2020-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 111,041 -52,000 -31.89 6,933 -13.92 0.1345
2020-08-14 2020-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 163,041 105,000 180.91 8,054 371.27 0.2280
2020-05-15 2020-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 58,041 10,289 21.55 1,709 -7.87 0.1465
2020-02-14 2019-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 47,752 47,752 1,855 0.0604
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 ADVANCED DRAIN SYS INC DEL COM Call 70,000 -61.11 9,599 -63.18 n/a n/a n/a
2026-02-17 2025-12-31 13F ADVANCED DRAIN SYS INC DEL COM Call 180,000 38.46 26,069 44.58 n/a n/a n/a
2025-11-14 2025-09-30 13F ADVANCED DRAIN SYS INC DEL COM Call 130,000 164.23 18,031 219.08 n/a n/a n/a
2025-08-14 2025-06-30 13F ADVANCED DRAIN SYS INC DEL COM Call 49,200 5,651 n/a n/a n/a
2025-02-14 2024-12-31 13F ADVANCED DRAIN SYS INC DEL COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-11-14 2024-09-30 13F ADVANCED DRAIN SYS INC DEL COM Call 100,000 -50.00 15,716 -51.01 n/a n/a n/a
2024-08-14 2024-06-30 13F ADVANCED DRAIN SYS INC DEL COM Call 200,000 -16.67 32,078 -22.40 n/a n/a n/a
2024-05-15 2024-03-31 13F ADVANCED DRAIN SYS INC DEL COM Call 240,000 166.67 41,338 226.59 n/a n/a n/a
2024-02-14 2023-12-31 13F ADVANCED DRAIN SYS INC DEL COM Call 90,000 12,658 n/a n/a n/a
2022-08-15 2022-06-30 13F ADVANCED DRAIN SYS INC DEL COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-05-16 2022-03-31 13F ADVANCED DRAIN SYS INC DEL COM Call 50,000 5,941 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 ADVANCED DRAIN SYS INC DEL COM Put 60,000 50.00 8,228 42.02 n/a n/a n/a
2026-02-17 2025-12-31 13F ADVANCED DRAIN SYS INC DEL COM Put 40,000 -33.33 5,793 -30.39 n/a n/a n/a
2025-11-14 2025-09-30 13F ADVANCED DRAIN SYS INC DEL COM Put 60,000 8,322 n/a n/a n/a
2025-02-14 2024-12-31 13F ADVANCED DRAIN SYS INC DEL COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-11-14 2024-09-30 13F ADVANCED DRAIN SYS INC DEL COM Put 20,000 3,143 n/a n/a n/a
2022-08-15 2022-06-30 13F ADVANCED DRAIN SYS INC DEL COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-05-16 2022-03-31 13F ADVANCED DRAIN SYS INC DEL COM Put 30,000 3,564 n/a n/a n/a
2021-11-15 2021-09-30 13F ADVANCED DRAIN SYS INC DEL COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-08-16 2021-06-30 13F ADVANCED DRAIN SYS INC DEL COM Put 30,000 0.00 3,497 12.73 n/a n/a n/a
2021-05-17 2021-03-31 13F ADVANCED DRAIN SYS INC DEL COM Put 30,000 0.00 3,102 23.73 n/a n/a n/a
2021-02-16 2020-12-31 13F ADVANCED DRAIN SYS INC DEL COM Put 30,000 2,507 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.