Wintrust Financial Corporation
US ˙ NasdaqGS ˙ US97650W1080

SecurityWTFC / Wintrust Financial Corporation
InstitutionBlair William & Co/il
Latest Disclosed Ownership18,856 shares
Latest Disclosed Value $ 2,619,845
Blair William & Co/il ownership in WTFC / Wintrust Financial Corporation

On May 8, 2026 - Blair William & Co/il filed a 13F-HR form disclosing ownership of 18,856 shares of Wintrust Financial Corporation (US:WTFC) valued at $2,619,853 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 18,752 shares of Wintrust Financial Corporation. This represents a change in shares of 0.55% during the quarter. The current value of the position is $2,883,082 USD.

Blair William & Co/il has a history of taking positions in derivatives of the underlying security (WTFC) 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.

WTFC / Wintrust Financial 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)
2026-05-08 2026-03-31 13F WINTRUST FINL COM 97650W108 18,856 104 0.55 2,620 -0.08 0.0075
2026-02-17 2025-12-31 13F WINTRUST FINL COM 97650W108 18,752 142 0.76 2,622 6.37 0.0070
2025-11-12 2025-09-30 13F WINTRUST FINL COM 97650W108 18,610 -145 -0.77 2,465 5.98 0.0066
2025-07-24 2025-06-30 13F WINTRUST FINL COM 97650W108 18,755 -300 -1.57 2,325 8.54 0.0065
2025-05-09 2025-03-31 13F WINTRUST FINL COM 97650W108 19,055 109 0.58 2,143 -9.31 0.0065
2025-02-12 2024-12-31 13F WINTRUST FINL COM 97650W108 18,946 -578 -2.96 2,363 11.52 0.0069
2024-11-12 2024-09-30 13F WINTRUST FINL COM 97650W108 19,524 394 2.06 2,119 12.36 0.0062
2024-08-12 2024-06-30 13F WINTRUST FINL COM 97650W108 19,130 -284 -1.46 1,885 -6.96 0.0058
2024-05-09 2024-03-31 13F WINTRUST FINL COM 97650W108 19,414 -203 -1.03 2,027 11.38 0.0064
2024-02-12 2023-12-31 13F WINTRUST FINL COM 97650W108 19,617 26 0.13 1,819 22.99 0.0062
2023-11-09 2023-09-30 13F WINTRUST FINL COM 97650W108 19,591 -20 -0.10 1,479 3.86 0.0057
2023-08-11 2023-06-30 13F WINTRUST FINL COM 97650W108 19,611 -16,372 -45.50 1,424 -45.73 0.0052
2023-05-12 2023-03-31 13F WINTRUST FINL COM 97650W108 35,983 -5,036 -12.28 2,625 -24.29 0.0105
2023-02-10 2022-12-31 13F WINTRUST FINL COM 97650W108 41,019 -929 -2.21 3,467 1.32 0.0151
2022-11-09 2022-09-30 13F WINTRUST FINL COM 97650W108 41,948 13,097 45.40 3,421 47.97 0.0157
2022-08-10 2022-06-30 13F WINTRUST FINL COM 97650W108 28,851 1,337 4.86 2,312 -9.58 0.0103
2022-05-13 2022-03-31 13F WINTRUST FINL COM 97650W108 27,514 -540 -1.92 2,557 0.35 0.0090
2022-02-14 2021-12-31 13F WINTRUST FINL COM 97650W108 28,054 -2,024 -6.73 2,548 5.42 0.0080
2021-11-12 2021-09-30 13F WINTRUST FINL COM 97650W108 30,078 9,262 44.49 2,417 53.56 0.0082
2021-08-12 2021-06-30 13F WINTRUST FINL COM 97650W108 20,816 -205 -0.98 1,574 -1.19 0.0055
2021-05-13 2021-03-31 13F WINTRUST FINL COM 97650W108 21,021 -749 -3.44 1,593 19.77 0.0060
2021-02-09 2020-12-31 13F WINTRUST FINL COM 97650W108 21,770 21 0.10 1,330 52.70 0.0049
2020-11-06 2020-09-30 13F WINTRUST FINL COM 97650W108 21,749 3 0.01 871 -8.22 0.0037
2020-08-12 2020-06-30 13F WINTRUST FINL COM 97650W108 21,746 800 3.82 949 37.94 0.0045
2020-05-11 2020-03-31 13F WINTRUST FINL COM 97650W108 20,946 -3,966 -15.92 688 -61.04 0.0043
2020-02-13 2019-12-31 13F WINTRUST FINL COM 97650W108 24,912 7,184 40.52 1,766 54.10 0.0091
2019-11-12 2019-09-30 13F WINTRUST FINL COM 97650W108 17,728 -202 -1.13 1,146 -12.65 0.0066
2019-08-13 2019-06-30 13F WINTRUST FINL COM 97650W108 17,930 1,593 9.75 1,312 19.27 0.0075
2019-05-14 2019-03-31 13F WINTRUST FINL COM 97650W108 16,337 231 1.43 1,100 2.71 0.0067
2019-02-14 2018-12-31 13F WINTRUST FINL COM 97650W108 16,106 178 1.12 1,071 -20.84 0.0078
2018-11-13 2018-09-30 13F WINTRUST FINL COM 97650W108 15,928 -1,123 -6.59 1,353 -8.83 0.0083
2018-08-13 2018-06-30 13F WINTRUST FINL COM 97650W108 17,051 -1,235 -6.75 1,484 -5.72 0.0101
2018-05-15 2018-03-31 13F WINTRUST FINL COM 97650W108 18,286 -6,767 -27.01 1,574 -23.74 0.0111
2018-02-14 2017-12-31 13F WINTRUST FINL COM 97650W108 25,053 -1,888 -7.01 2,064 -2.18 0.0140
2017-11-13 2017-09-30 13F WINTRUST FINANCIAL COM 97650W108 26,941 4,886 22.15 2,110 25.15 0.0158
2017-08-04 2017-06-30 13F WINTRUST FINANCIAL COM 97650W108 22,055 -230 -1.03 1,686 5.31 0.0127
2017-05-10 2017-03-31 13F WINTRUST FINANCIAL COM 97650W108 22,285 -5,132 -18.72 1,601 -19.55 0.0129
2017-02-14 2016-12-31 13F WINTRUST FINANCIAL COM 97650W108 27,417 976 3.69 1,990 35.47 0.0178
2016-11-14 2016-09-30 13F WINTRUST FINANCIAL COM 97650W108 26,441 -1,250 -4.51 1,469 4.04 0.0130
2016-08-08 2016-06-30 13F WINTRUST FINANCIAL COM 97650W108 27,691 925 3.46 1,412 19.06 0.0132
2016-05-16 2016-03-31 13F WINTRUST FINANCIAL COM 97650W108 26,766 0 0.00 1,186 -8.70 0.0112
2016-02-16 2015-12-31 13F WINTRUST FINANCIAL COM 97650W108 26,766 4,810 21.91 1,299 10.74 0.0122
2015-11-12 2015-09-30 13F WINTRUST FINANCIAL COM 97650W108 21,956 0 0.00 1,173 0.17 0.0101
2015-08-03 2015-06-30 13F WINTRUST FINANCIAL COM 97650W108 21,956 40 0.18 1,171 12.16 0.0018
2015-05-11 2015-03-31 13F WINTRUST FINANCIAL COM 97650W108 21,916 21,916 0.00 1,044 0.0016
2015-02-05 2014-12-31 13F WINTRUST FINANCIAL COM 97650W108 0 -21,916 -100.00 0 -100.00
2014-11-04 2014-09-30 13F WINTRUST FINANCIAL COM 97650W108 21,916 0 0.00 978 -2.98 0.0017
2014-08-01 2014-06-30 13F WINTRUST FINANCIAL COM 97650W108 21,916 0 0.00 1,008 -5.44 0.0016
2014-05-06 2014-03-31 13F WINTRUST FINANCIAL COM 97650W108 21,916 -1,967 -8.24 1,066 -3.18 0.0018
2014-02-11 2013-12-31 13F WINTRUST FINANCIAL COM 97650W108 23,883 -640 -2.61 1,101 9.33 0.0018
2013-11-12 2013-09-30 13F WINTRUST FINANCIAL COM 97650W108 24,523 7,266 42.10 1,007 52.58 0.0018
2013-08-07 2013-06-30 13F WINTRUST FINANCIAL COM 97650W108 17,257 17,257 660 0.0013
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
(%)
2017-05-10 2017-03-31 13F WINTRUST FINANCIAL OPTION Call 0 -100.00 0 -100.00 n/a n/a n/a
2017-02-14 2016-12-31 13F WINTRUST FINANCIAL OPTION Call 2,000 145 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.