Bank of Montreal
US ˙ NYSE ˙ CA0636711016

SecurityBMO / Bank of Montreal
InstitutionWalleye Capital LLC
Latest Disclosed Ownership6,048 shares
Latest Disclosed Value $ 818,536
Walleye Capital LLC ownership in BMO / Bank of Montreal

On May 13, 2026 - Walleye Capital LLC filed a 13F-HR/A form disclosing ownership of 6,048 shares of Bank of Montreal (US:BMO) valued at $818,536 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 477 shares of Bank of Montreal. This represents a change in shares of 1,167.92% during the quarter. The current value of the position is $994,110 USD.

Walleye Capital LLC has a history of taking positions in derivatives of the underlying security (BMO) in the form of stock options. The firm currently holds call options representing 2,400 of underlying shares valued at $324,816 USD and put options representing 13,100 of underlying shares valued at $1,772,954 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.

BMO / Bank of Montreal 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 BANK MONTREAL MEDIUM COM 063671101 6,048 5,571 1,167.92 819 1,240.98 0.0034
2026-05-08 2026-03-31 13F BANK MONTREAL MEDIUM COM 063671101 6,048 5,571 819 0.0034
2026-02-13 2025-12-31 13F BANK MONTREAL QUE COM 063671101 477 477 62 0.0002
2025-11-14 2025-09-30 13F BANK MONTREAL QUE COM 063671101 0 -164 -100.00 0 -100.00
2025-08-13 2025-06-30 13F BANK MONTREAL QUE COM 063671101 164 14 9.33 18 28.57 0.0001
2025-05-14 2025-03-31 13F BANK MONTREAL QUE COM 063671101 150 150 14 0.0001
2024-11-14 2024-09-30 13F BANK MONTREAL QUE COM 063671101 0 -9,983 -100.00 0 -100.00
2024-08-14 2024-06-30 13F BANK MONTREAL QUE COM 063671101 9,983 9,983 837 0.0015
2023-02-14 2022-12-31 13F BANK MONTREAL QUE COM 063671101 0 -8,175 -100.00 0 -100.00
2022-11-14 2022-09-30 13F BANK MONTREAL QUE COM 063671101 8,175 8,175 716 0.0137
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 BANK MONTREAL MEDIUM COM Call 2,400 -88.68 325 -88.22 n/a n/a n/a
2026-05-08 2026-03-31 13F BANK MONTREAL MEDIUM COM Call 2,400 325 n/a n/a n/a
2026-02-13 2025-12-31 13F BANK MONTREAL QUE COM Call 21,200 42.28 2,752 41.80 n/a n/a n/a
2025-11-14 2025-09-30 13F BANK MONTREAL QUE COM Call 14,900 238.64 1,941 299.18 n/a n/a n/a
2025-08-13 2025-06-30 13F BANK MONTREAL QUE COM Call 4,400 0.00 487 15.71 n/a n/a n/a
2025-05-14 2025-03-31 13F BANK MONTREAL QUE COM Call 4,400 -88.36 420 -88.55 n/a n/a n/a
2025-02-13 2024-12-31 13F BANK MONTREAL QUE COM Call 37,800 -47.79 3,668 -43.83 n/a n/a n/a
2024-11-14 2024-09-30 13F BANK MONTREAL QUE COM Call 72,400 0.70 6,530 8.33 n/a n/a n/a
2024-08-14 2024-06-30 13F BANK MONTREAL QUE COM Call 71,900 112.09 6,029 82.06 n/a n/a n/a
2024-05-15 2024-03-31 13F BANK MONTREAL QUE COM Call 33,900 31.91 3,311 30.25 n/a n/a n/a
2024-02-14 2023-12-31 13F BANK MONTREAL QUE COM Call 25,700 2,543 n/a n/a n/a
2023-08-14 2023-06-30 13F BANK MONTREAL QUE COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-05-15 2023-03-31 13F BANK MONTREAL QUE COM Call 27,000 2,406 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 BANK MONTREAL MEDIUM COM Put 13,100 -48.02 1,773 -45.81 n/a n/a n/a
2026-05-08 2026-03-31 13F BANK MONTREAL MEDIUM COM Put 13,100 1,773 n/a n/a n/a
2026-02-13 2025-12-31 13F BANK MONTREAL QUE COM Put 25,200 149.50 3,271 148.67 n/a n/a n/a
2025-11-14 2025-09-30 13F BANK MONTREAL QUE COM Put 10,100 206.06 1,316 260.27 n/a n/a n/a
2025-08-13 2025-06-30 13F BANK MONTREAL QUE COM Put 3,300 -53.52 365 -46.17 n/a n/a n/a
2025-05-14 2025-03-31 13F BANK MONTREAL QUE COM Put 7,100 -91.01 678 -91.16 n/a n/a n/a
2025-02-13 2024-12-31 13F BANK MONTREAL QUE COM Put 79,000 611.71 7,667 665.83 n/a n/a n/a
2024-11-14 2024-09-30 13F BANK MONTREAL QUE COM Put 11,100 -36.21 1,001 -31.34 n/a n/a n/a
2024-08-14 2024-06-30 13F BANK MONTREAL QUE COM Put 17,400 987.50 1,459 834.62 n/a n/a n/a
2024-05-15 2024-03-31 13F BANK MONTREAL QUE COM Put 1,600 -5.88 156 -7.14 n/a n/a n/a
2024-02-14 2023-12-31 13F BANK MONTREAL QUE COM Put 1,700 168 n/a n/a n/a
2023-08-14 2023-06-30 13F BANK MONTREAL QUE COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-05-15 2023-03-31 13F BANK MONTREAL QUE COM Put 12,800 1,141 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.