Ameren Corporation
MX ˙ BMV ˙ US0236081024
SecurityMX:AEE / Ameren Corporation
InstitutionWalleye Capital LLC
Latest Disclosed Ownership554 shares
Latest Disclosed Value $ 60,896
Walleye Capital LLC ownership in AEE / Ameren Corporation

On May 13, 2026 - Walleye Capital LLC filed a 13F-HR/A form disclosing ownership of 554 shares of Ameren Corporation (MX:AEE) valued at $60,896 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 0 shares of Ameren Corporation.

Walleye Capital LLC has a history of taking positions in derivatives of the underlying security (AEE) in the form of stock options. The firm currently holds call options representing 2,200 of underlying shares valued at $241,824 USD and put options representing 700 of underlying shares valued at $76,944 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:AEE / Ameren 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)
2026-05-13 2026-03-31 13F/A-1 AMEREN COM 023608102 554 554 61 0.0003
2026-05-08 2026-03-31 13F AMEREN COM 023608102 554 554 61 0.0003
2026-02-13 2025-12-31 13F AMEREN COM 023608102 0 -757 -100.00 0 -100.00
2025-11-14 2025-09-30 13F AMEREN COM 023608102 757 -566 -42.78 79 -37.80 0.0003
2025-08-13 2025-06-30 13F AMEREN COM 023608102 1,323 -4 -0.30 127 -4.51 0.0005
2025-05-14 2025-03-31 13F AMEREN COM 023608102 1,327 383 40.57 133 58.33 0.0006
2025-02-13 2024-12-31 13F AMEREN COM 023608102 944 -6,187 -86.76 84 -86.52 0.0002
2024-11-14 2024-09-30 13F AMEREN COM 023608102 7,131 -8,180 -53.43 624 -42.74 0.0013
2024-08-14 2024-06-30 13F AMEREN COM 023608102 15,311 12,471 439.12 1,089 418.10 0.0019
2024-05-15 2024-03-31 13F AMEREN COM 023608102 2,840 -3,173 -52.77 210 -51.61 0.0004
2024-02-14 2023-12-31 13F AMEREN COM 023608102 6,013 6,013 435 0.0009
2023-08-14 2023-06-30 13F AMEREN COM 023608102 0 -76,056 -100.00 0 -100.00
2023-05-15 2023-03-31 13F AMEREN COM 023608102 76,056 48,158 172.62 6,570 164.92 0.0984
2023-02-14 2022-12-31 13F AMEREN COM 023608102 27,898 -43,216 -60.77 2,481 -56.70 0.0452
2022-11-14 2022-09-30 13F AMEREN COM 023608102 71,114 47,073 195.80 5,728 163.72 0.1093
2022-08-19 2022-06-30 13F/A-1 AMEREN COM 023608102 24,041 -20,874 -46.47 2,172 -48.42 0.0599
2022-08-08 2022-06-30 13F AMEREN COM 023608102 24,041 -20,874 2,172 0.0599
2022-05-27 2022-03-31 13F/A-01 AMEREN COM 023608102 44,915 -33,429 -42.67 4,211 -39.61 0.1125
2022-05-16 2022-03-31 13F AMEREN COM 023608102 44,915 -33,429 4,211 0.0857
2022-05-27 2021-12-31 13F/A-01 AMEREN COM 023608102 78,344 78,344 6,973 0.2166
2022-03-03 2021-12-31 13F AMEREN COM 023608102 78,344 78,344 6,973 0.1743
2020-08-14 2020-06-30 13F AMEREN COM 023608102 0 -10,790 -100.00 0 -100.00
2020-05-15 2020-03-31 13F AMEREN COM 023608102 10,790 -1,010 -8.56 786 -13.25 0.1730
2020-02-14 2019-12-31 13F AMEREN COM 023608102 11,800 11,800 906 0.0588
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 AMEREN COM Call 2,200 242 n/a n/a n/a
2026-05-08 2026-03-31 13F AMEREN COM Call 2,200 242 n/a n/a n/a
2026-02-13 2025-12-31 13F AMEREN COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-11-14 2025-09-30 13F AMEREN COM Call 1,100 -82.26 115 -80.84 n/a n/a n/a
2025-08-13 2025-06-30 13F AMEREN COM Call 6,200 595 n/a n/a n/a
2025-05-14 2025-03-31 13F AMEREN COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-02-13 2024-12-31 13F AMEREN COM Call 24,400 713.33 2,175 730.15 n/a n/a n/a
2024-11-14 2024-09-30 13F AMEREN COM Call 3,000 -9.09 262 11.97 n/a n/a n/a
2024-08-14 2024-06-30 13F AMEREN COM Call 3,300 3,200.00 235 3,242.86 n/a n/a n/a
2024-05-15 2024-03-31 13F AMEREN COM Call 100 -94.12 7 -94.26 n/a n/a n/a
2024-02-14 2023-12-31 13F AMEREN COM Call 1,700 -75.36 123 -76.36 n/a n/a n/a
2023-11-21 2023-09-30 13F/A AMEREN COM Call 6,900 516 n/a n/a n/a
2023-11-14 2023-09-30 13F AMEREN COM Call 6,900 516 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 AMEREN COM Put 700 77 n/a n/a n/a
2026-05-08 2026-03-31 13F AMEREN COM Put 700 77 n/a n/a n/a
2026-02-13 2025-12-31 13F AMEREN COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-11-14 2025-09-30 13F AMEREN COM Put 4,800 -40.00 501 -34.77 n/a n/a n/a
2025-08-13 2025-06-30 13F AMEREN COM Put 8,000 -5.88 768 -9.96 n/a n/a n/a
2025-05-14 2025-03-31 13F AMEREN COM Put 8,500 57.41 853 77.34 n/a n/a n/a
2025-02-13 2024-12-31 13F AMEREN COM Put 5,400 -86.60 481 -86.35 n/a n/a n/a
2024-11-14 2024-09-30 13F AMEREN COM Put 40,300 98.52 3,525 144.21 n/a n/a n/a
2024-08-14 2024-06-30 13F AMEREN COM Put 20,300 105.05 1,444 97.13 n/a n/a n/a
2024-05-15 2024-03-31 13F AMEREN COM Put 9,900 -25.56 732 -23.91 n/a n/a n/a
2024-02-14 2023-12-31 13F AMEREN COM Put 13,300 -18.90 962 -21.60 n/a n/a n/a
2023-11-21 2023-09-30 13F/A AMEREN COM Put 16,400 1,227 n/a n/a n/a
2023-11-14 2023-09-30 13F AMEREN COM Put 16,400 1,227 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.