NextDecade Corporation
US ˙ NasdaqCM ˙ US65342K1051

SecurityNEXT / NextDecade Corporation
InstitutionSl Advisors, Llc
Latest Disclosed Ownership986,992 shares
Latest Disclosed Value $ 7,560,358
Sl Advisors, Llc ownership in NEXT / NextDecade Corporation

On April 15, 2026 - Sl Advisors, Llc filed a 13F-HR form disclosing ownership of 986,992 shares of NextDecade Corporation (US:NEXT) valued at $7,560,359 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on April 15, 2026 disclosing 922,889 shares of NextDecade Corporation. This represents a change in shares of 6.95% during the quarter. The current value of the position is $8,330,212 USD.

Sl Advisors, Llc has a history of taking positions in derivatives of the underlying security (NEXT) in the form of stock options. The firm currently holds call 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.

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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.

NEXT / NextDecade Corporation 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)
2026-04-15 2026-03-31 13F NEXTDECADE COM 65342K105 986,992 64,103 6.95 7,560 55.46 12.7986
2026-04-15 2025-12-31 13F/A-1 NEXTDECADE COM 65342K105 922,889 -4,495 -0.48 4,864 -22.76 9.9586
2026-01-08 2025-12-31 13F NEXTDECADE COM 65342K105 922,889 -4,495 4,864 9.9586
2026-04-15 2025-09-30 13F/A-1 NEXTDECADE COM 65342K105 927,384 -32,895 -3.43 6,297 -26.41 12.3915
2025-10-20 2025-09-30 13F NEXTDECADE COM 65342K105 927,384 -32,895 6,297 12.3915
2026-04-15 2025-06-30 13F/A-1 NEXTDECADE COM 65342K105 960,279 86,500 9.90 8,556 25.86 15.4120
2025-07-22 2025-06-30 13F NEXTDECADE COM 65342K105 960,279 86,500 8,556 15.4120
2026-04-15 2025-03-31 13F/A-1 NEXTDECADE COM 65342K105 873,779 20,250 2.37 6,798 3.31 11.7479
2025-04-29 2025-03-31 13F NEXTDECADE COM 65342K105 873,779 20,250 2.37 6,798 3.31 11.8914
2026-04-15 2024-12-31 13F/A-1 NEXTDECADE COM 65342K105 853,529 30,000 3.64 6,581 69.68 10.8822
2025-01-08 2024-12-31 13F NEXTDECADE COM 65342K105 853,529 30,000 3.64 6,581 69.68 10.8822
2026-04-15 2024-09-30 13F/A-1 NEXTDECADE COM 65342K105 823,529 39,830 5.08 3,879 -37.67 6.9820
2024-10-08 2024-09-30 13F NEXTDECADE COM 65342K105 823,529 39,830 5.08 3,879 -37.67 6.9820
2026-04-15 2024-06-30 13F/A-1 NEXTDECADE COM 65342K105 783,699 92,037 13.31 6,223 58.40 12.2983
2024-08-14 2024-06-30 13F NEXTDECADE COM 65342K105 783,699 92,037 6,223 12.2983
2026-04-15 2024-03-31 13F/A-1 NEXTDECADE COM 65342K105 691,662 173,951 33.60 3,929 59.09 7.7365
2024-05-13 2024-03-31 13F NEXTDECADE COM 65342K105 691,662 173,951 3,929 7.7365
2026-04-15 2023-12-31 13F/A-1 NEXTDECADE COM 65342K105 517,711 14,056 2.79 2,469 -4.49 5.3120
2024-01-09 2023-12-31 13F NEXTDECADE COM 65342K105 517,711 14,056 2,469 5.3120
2026-04-15 2023-09-30 13F/A-1 NEXTDECADE COM 65342K105 503,655 3,855 0.77 2,585 -37.00 3.4806
2023-11-13 2023-09-30 13F NEXTDECADE COM 65342K105 503,655 3,855 2,585 3.4806
2026-04-15 2023-06-30 13F/A-1 NEXTDECADE COM 65342K105 499,800 -270,693 -35.13 4,103 7.16 9.2214
2023-07-21 2023-06-30 13F NEXTDECADE COM 65342K105 499,800 -270,693 4,103 9.2214
2026-04-15 2023-03-31 13F/A-1 NEXTDECADE COM 65342K105 770,493 324,552 72.78 3,829 73.89 8.2091
2023-04-19 2023-03-31 13F NEXTDECADE COM 65342K105 770,493 324,552 3,829 8.2091
2026-04-15 2022-12-31 13F/A-1 NEXTDECADE COM 65342K105 445,941 46,448 11.63 2,203 -8.44 4.8761
2023-01-18 2022-12-31 13F NEXTDECADE COM 65342K105 445,941 46,448 2,203 4.8761
2022-10-14 2022-09-30 13F NEXT COM 65342K105 399,493 -113,455 -22.12 2,405 5.62 5.9710
2022-07-28 2022-06-30 13F NEXT COM 65342K105 512,948 -254,752 -33.18 2,277 -55.19 5.4518
2022-04-14 2022-03-31 13F NEXT COM 65342K105 767,700 552,875 257.36 5,082 730.39 10.3852
2022-01-28 2021-12-31 13F NEXT COM 65342K105 214,825 146,228 213.17 612 220.42 1.5050
2021-10-13 2021-09-30 13F NEXTDECADE COM 65342K105 68,597 516 0.76 191 -32.03 0.4828
2021-07-19 2021-06-30 13F NEXTDECADE COM 65342K105 68,081 37,051 119.40 281 238.55 0.7150
2021-04-28 2021-03-31 13F NEXTDECADE COM 65342K105 31,030 31,030 83 0.2505
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
(%)
2026-04-15 2023-09-30 13F/A NEXTDECADE COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-11-13 2023-09-30 13F NEXTDECADE COM Call 0 0 n/a n/a n/a
2026-04-15 2023-06-30 13F/A NEXTDECADE COM Call 3,500 29 n/a n/a n/a
2023-07-21 2023-06-30 13F NEXTDECADE COM Call 3,500 29 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.