MGIC Investment Corporation
MX ˙ BMV ˙ US5528481030
SecurityMX:MTG / MGIC Investment Corporation
InstitutionBnp Paribas Arbitrage, Sa
Latest Disclosed Ownership113,444 shares
Latest Disclosed Value $ 2,977,905
Bnp Paribas Arbitrage, Sa ownership in MTG / MGIC Investment Corporation

On May 12, 2026 - Bnp Paribas Arbitrage, Sa filed a 13F-HR form disclosing ownership of 113,444 shares of MGIC Investment Corporation (MX:MTG) valued at $2,977,905 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 165,386 shares of MGIC Investment Corporation. This represents a change in shares of -31.41% during the quarter.

Bnp Paribas Arbitrage, Sa has a history of taking positions in derivatives of the underlying security (MTG) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put 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.

MX:MTG / MGIC Investment 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)
2026-05-12 2026-03-31 13F MGIC Investment Equity 552848103 113,444 -51,942 -31.41 2,978 -38.39 0.0014
2026-02-10 2025-12-31 13F MGIC Investment Equity 552848103 165,386 75,507 84.01 4,833 89.56 0.0022
2025-11-13 2025-09-30 13F MGIC Investment Equity 552848103 89,879 -18,567 -17.12 2,550 -15.57 0.0014
2025-08-14 2025-06-30 13F MGIC Investment Equity 552848103 108,446 -106,306 -49.50 3,019 -43.26 0.0017
2025-05-14 2025-03-31 13F MGIC Investment Equity 552848103 214,752 -890,647 -80.57 5,322 -79.70 0.0031
2025-02-14 2024-12-31 13F MGIC Investment Equity 552848103 1,105,399 797,852 259.42 26,209 232.90 0.0147
2024-11-13 2024-09-30 13F MGIC Investment Equity 552848103 307,547 63,473 26.01 7,873 49.71 0.0053
2024-08-13 2024-06-30 13F MGIC Investment Equity 552848103 244,074 64,895 36.22 5,260 31.28 0.0043
2024-05-01 2024-03-31 13F MGIC Investment Equity 552848103 179,179 63,530 54.93 4,006 79.64 0.0035
2024-02-14 2023-12-31 13F/A-2 MGIC Investment Equity 552848103 115,649 -5,426 -4.48 2,231 10.40 0.0025
2024-02-07 2023-12-31 13F/A-1 MGIC Investment Equity 552848103 115,649 -5,426 2,231 0.0003
2024-02-07 2023-12-31 13F MGIC Investment Equity 552848103 115,649 2,231
2023-11-14 2023-09-30 13F MGIC Investment Equity 552848103 121,075 -2,157 -1.75 2,021 3.86 0.0026
2023-08-09 2023-06-30 13F MGIC Investment Equity 552848103 123,232 -364,563 -74.74 1,946 -70.29 0.0024
2023-05-12 2023-03-31 13F MGIC INVESTMENT EQUITY 552848103 487,795 -355,309 -42.14 6,546 -40.27 0.0092
2023-02-14 2022-12-31 13F MGIC Investment Equity 552848103 843,104 754,803 854.81 10,960 868.20 0.0168
2022-11-16 2022-09-30 13F/A-1 MGIC Investment Equity 552848103 88,301 -9,667 -9.87 1,132 -8.27 0.0018
2022-11-15 2022-09-30 13F MGIC Investment Equity 552848103 88,301 -9,667 1,132 0.0003
2022-08-12 2022-06-30 13F MGIC Investment Equity 552848103 97,968 -89,430 -47.72 1,234 -51.40 0.0019
2022-05-18 2022-03-31 13F/A-1 MGIC Investment Equity 552848103 187,398 -77,127 -29.16 2,539 -33.43 0.0034
2022-02-09 2021-12-31 13F MGIC INVESTMENT EQUITY 552848103 264,525 177,106 202.59 3,814 191.81 0.0054
2021-11-16 2021-09-30 13F/A-1 MGIC INVESTMENT EQUITY 552848103 87,419 -194,634 -69.01 1,308 -65.92 0.0019
2021-11-12 2021-09-30 13F MGIC INVESTMENT EQUITY 552848103 524,740 242,687 4,649 0.0000
2021-08-10 2021-06-30 13F MGIC INVESTMENT EQUITY 552848103 282,053 -320,582 -53.20 3,836 -54.05 0.0051
2021-05-07 2021-03-31 13F MGIC INVESTMENT EQUITY 552848103 602,635 505,213 518.58 8,346 582.98 0.0122
2021-02-10 2020-12-31 13F MGIC INVESTMENT EQUITY 552848103 97,422 -427,318 -81.43 1,223 -73.71 0.0023
2020-10-30 2020-09-30 13F MGIC INVESTMENT EQUITY 552848103 524,740 -644,479 -55.12 4,649 -51.45 0.0067
2020-08-06 2020-06-30 13F MGIC INVESTMENT EQUITY 552848103 1,169,219 761,615 186.85 9,576 269.98 0.0169
2020-05-13 2020-03-31 13F MGIC INVESTMENT EQUITY 552848103 407,604 -70,549 -14.75 2,588 -61.80 0.0053
2020-02-12 2019-12-31 13F MGIC INVESTMENT EQUITY 552848103 478,153 -110,715 -18.80 6,775 -8.53 0.0123
2019-11-07 2019-09-30 13F MGIC INVESTMENT EQUITY 552848103 588,868 361,676 159.19 7,408 148.14 0.0132
2019-07-30 2019-06-30 13F MGIC INVESTMENT EQUITY 552848103 227,192 63,754 39.01 2,985 38.52 0.0059
2019-04-25 2019-03-31 13F MGIC INVESTMENT EQUITY 552848103 163,438 23,815 17.06 2,156 47.60 0.0047
2019-02-12 2018-12-31 13F MGIC INVESTMENT EQUITY 552848103 139,623 -16,570 -10.61 1,460 -29.74 0.0035
2018-11-07 2018-09-30 13F MGIC INVESTMENT EQUITY 552848103 156,193 -45,270 -22.47 2,079 -3.75 0.0031
2018-07-25 2018-06-30 13F MGIC INVESTMENT EQUITY 552848103 201,463 -367,340 -64.58 2,160 -70.80 0.0036
2018-05-11 2018-03-31 13F MGIC INVESTMENT EQUITY 552848103 568,803 -200,405 -26.05 7,394 -31.87 0.0138
2018-03-05 2017-12-31 13F/A-1 MGIC INVESTMENT EQUITY 552848103 769,208 -298,262 -27.94 10,854 -18.86 0.0192
2018-02-01 2017-12-31 13F MGIC INVESTMENT EQUITY 552848103 769,208 -298,262 18,152
2017-11-03 2017-09-30 13F MGIC INVT CORP WIS STOCK 552848103 1,067,470 143,905 15.58 13,375 29.31 0.0327
2017-08-03 2017-06-30 13F MGIC INVT CORP WIS STOCK 552848103 923,565 527,568 133.23 10,344 157.87 0.0312
2017-05-03 2017-03-31 13F MGIC INVT CORP WIS STOCK 552848103 395,997 152,085 62.35 4,011 61.41 0.0106
2017-02-14 2016-12-31 13F MGIC INVT CORP WIS STOCK 552848103 243,912 216,369 785.57 2,485 1,029.55 0.0116
2016-10-05 2016-09-30 13F * MGIC INVT CORP WIS COM STOCK 552848103 27,543 -97,783 -78.02 220 -70.47 0.0009
2016-07-06 2016-06-30 13F * MGIC INVT CORP WIS COM STOCK 552848103 125,326 -230,478 -64.78 746 -72.70 0.0034
2016-04-22 2016-03-31 13F * MGIC INVT CORP WIS COM STOCK 552848103 355,804 -197,154 -35.65 2,729 -44.10 0.0115
2016-04-19 2015-12-31 13F/A-1 * MGIC INVT CORP WIS COM STOCK 552848103 552,958 -25,006 -4.33 4,883 -8.76 0.0238
2016-02-10 2015-12-31 13F * MGIC INVT CORP WIS COM STOCK 552848103 552,958 4,883
2015-11-13 2015-09-30 13F * MGIC INVT CORP WIS COM STOCK 552848103 577,964 162,867 39.24 5,352 13.30 0.0134
2015-08-14 2015-06-30 13F MGIC INVT CORP WIS COM STOCK 552848103 415,097 264,319 175.30 4,724 225.50 0.0132
2015-05-15 2015-03-31 13F * MGIC INVT CORP WIS COM STOCK 552848103 150,778 -801,926 -84.17 1,452 -80.50 0.0040
2014-11-12 2014-09-30 13F * MGIC INVT CORP WIS COM STOCK 552848103 952,704 952,426 342,599.28 7,441 371,900.00 0.0065
2014-08-14 2014-06-30 13F/A-1 * MGIC INVT CORP WIS COM STOCK 552848103 278 259 1,363.16 3 -98.77 0.0000
2014-08-14 2014-06-30 13F MGIC INVT CORP WIS COM STOCK 552848103 278 3
2014-05-13 2014-03-31 13F MGIC INVT CORP WIS STOCK 552848103 19 -333,360 -99.99 0 -100.00 0.0000
2014-04-02 2013-12-31 13F/A-1 MGIC INVT CORP WIS STOCK 552848103 333,379 244,039 273.16 203,502 31,207.85 0.1484
2014-02-12 2013-12-31 13F MGIC INVT CORP WIS STOCK 552848103 333,379 203,502
2013-11-13 2013-09-30 13F MGIC INVT CORP WIS STOCK 552848103 89,340 -29,074 -24.55 650 -9.47 0.0005
2013-08-13 2013-06-30 13F MGIC INVT CORP WIS STOCK 552848103 118,414 118,414 719 0.0005
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
(%)
2020-08-06 2020-06-30 13F MGIC INVESTMENT OPTION Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-05-13 2020-03-31 13F MGIC INVESTMENT OPTION Call 495 -38.12 314 -72.29 n/a n/a n/a
2020-02-12 2019-12-31 13F MGIC INVESTMENT OPTION Call 800 300.00 1,134 351.39 n/a n/a n/a
2019-11-07 2019-09-30 13F MGIC INVESTMENT OPTION Call 200 252 n/a n/a n/a
2019-07-30 2019-06-30 13F MGIC INVESTMENT OPTION Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-04-25 2019-03-31 13F MGIC INVESTMENT OPTION Call 500 -76.19 660 -69.99 n/a n/a n/a
2019-02-12 2018-12-31 13F MGIC INVESTMENT OPTION Call 2,100 10.53 2,197 -13.13 n/a n/a n/a
2018-11-07 2018-09-30 13F MGIC INVESTMENT OPTION Call 1,900 3,700.00 2,529 4,669.81 n/a n/a n/a
2018-07-25 2018-06-30 13F MGIC INVESTMENT OPTION Call 50 -99.85 54 -87.65 n/a n/a n/a
2018-05-11 2018-03-31 13F MGIC INVESTMENT OPTION Call 33,000 -5.98 429 -13.33 n/a n/a n/a
2018-03-05 2017-12-31 13F/A MGIC INVESTMENT OPTION Call 35,100 495 n/a n/a n/a
2018-02-01 2017-12-31 13F MGIC INVESTMENT OPTION Call 35,100 495 n/a n/a n/a
2017-08-03 2017-06-30 13F MGIC INVT CORP WIS OPTION Call 0 -100.00 0 -100.00 n/a n/a n/a
2017-05-03 2017-03-31 13F MGIC INVT CORP WIS OPTION Call 995 26 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
(%)
2020-10-30 2020-09-30 13F MGIC INVESTMENT OPTION Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-08-06 2020-06-30 13F MGIC INVESTMENT OPTION Put 1,300 0.00 1,065 28.97 n/a n/a n/a
2020-05-13 2020-03-31 13F MGIC INVESTMENT OPTION Put 1,300 -71.74 826 -87.34 n/a n/a n/a
2020-02-12 2019-12-31 13F MGIC INVESTMENT OPTION Put 4,600 -9.80 6,518 1.61 n/a n/a n/a
2019-11-07 2019-09-30 13F MGIC INVESTMENT OPTION Put 5,100 -42.79 6,416 -45.24 n/a n/a n/a
2019-07-30 2019-06-30 13F MGIC INVESTMENT OPTION Put 8,915 176.78 11,714 175.75 n/a n/a n/a
2019-04-25 2019-03-31 13F MGIC INVESTMENT OPTION Put 3,221 -6.12 4,248 18.39 n/a n/a n/a
2019-02-12 2018-12-31 13F MGIC INVESTMENT OPTION Put 3,431 3,589 n/a n/a n/a
2018-11-07 2018-09-30 13F MGIC INVESTMENT OPTION Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-07-25 2018-06-30 13F MGIC INVESTMENT OPTION Put 1,013 -99.08 1,086 -24.13 n/a n/a n/a
2018-05-11 2018-03-31 13F MGIC INVESTMENT OPTION Put 110,000 1,430 n/a n/a n/a
2017-11-03 2017-09-30 13F MGIC INVT CORP WIS OPTION Put 0 -100.00 0 -100.00 n/a n/a n/a
2017-08-03 2017-06-30 13F MGIC INVT CORP WIS OPTION Put 900 -1.42 8 -80.00 n/a n/a n/a
2017-05-03 2017-03-31 13F MGIC INVT CORP WIS OPTION Put 913 41 n/a n/a n/a
2015-05-15 2015-03-31 13F * MGIC INVT CORP WIS COM OPTION Put 0 -100.00 0 -100.00 n/a n/a n/a
2015-02-11 2014-12-31 13F * MGIC INVT CORP WIS COM OPTION Put 1,500 -76.92 6 -92.86 n/a n/a n/a
2014-11-12 2014-09-30 13F * MGIC INVT CORP WIS COM OPTION Put 6,498 85 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.