MAIN STR CAP CORP MAIN
COM · Common Stock · CUSIP 56035L104 · ISIN US56035L1044
American investment company
- HeadquartersHouston, TX
- Founded1997
- Websitemainstcapital.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($4.7m this quarter). Holder counts are more reliable. Shares outstanding: 90.1m as of 2026-02-26, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $52.98. Options: 7 managers hold calls ($22.9m notional), 10 hold puts ($35.0m).
Trends to Q1 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 248 |
| Q4 2022 | 273 |
| Q1 2023 | 274 |
| Q2 2023 | 290 |
| Q3 2023 | 293 |
| Q4 2023 | 314 |
| Q1 2024 | 326 |
| Q2 2024 | 341 |
| Q3 2024 | 355 |
| Q4 2024 | 402 |
| Q1 2025 | 393 |
| Q2 2025 | 405 |
| Q3 2025 | 407 |
| Q4 2025 | 431 |
| Q1 2026 | 424 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2024 | 174 | 105 |
| Q3 2024 | 191 | 85 |
| Q4 2024 | 215 | 100 |
| Q1 2025 | 186 | 166 |
| Q2 2025 | 198 | 141 |
| Q3 2025 | 194 | 130 |
| Q4 2025 | 185 | 157 |
| Q1 2026 | 225 | 162 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2025 | $20.1m | $60.2m | 3.00 |
| Q3 2025 | $21.3m | $61.5m | 2.90 |
| Q4 2025 | $21.2m | $54.8m | 2.58 |
| Q1 2026 | $22.9m | $35.0m | 1.53 |
Biggest buyers
| VAN ECK ASSOCIATES CORP | Added | +976.6k |
| UBS Group AG | Added | +726.9k |
| TWO SIGMA INVESTMENTS, LP | Added | +451.6k |
| Qube Research & Technologies Ltd | Added | +295.9k |
| D. E. Shaw & Co., Inc. | Added | +264.8k |
| SANDERS MORRIS HARRIS LLC | New | +237.3k |
| BlackRock, Inc. | Added | +214.1k |
| MARSHALL WACE, LLP | New | +205.4k |
| Trexquant Investment LP | Added | +123.9k |
| MILLENNIUM MANAGEMENT LLC | Added | +112.8k |
Biggest sellers
| Corient Private Wealth LP | Reduced | -1.8m |
| JANE STREET GROUP, LLC | Sold out | -314.6k |
| Sound Income Strategies, LLC | Reduced | -217.9k |
| TUDOR INVESTMENT CORP ET AL | Reduced | -165.9k |
| HRT FINANCIAL LP | Sold out | -106.0k |
| FIRST TRUST ADVISORS LP | Reduced | -61.4k |
| ExodusPoint Capital Management, LP | Sold out | -53.5k |
| JPMORGAN CHASE & CO | Reduced | -53.3k |
| XTX Topco Ltd | Reduced | -45.6k |
| GOLDMAN SACHS GROUP INC | Reduced | -43.4k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $18.8m355.6k shares |
| CITADEL ADVISORS LLC | Reduced | $1.7m32.0k shares |
| IMC-Chicago, LLC | Added | $1.1m20.9k shares |
| JANE STREET GROUP, LLC | Reduced | $582.6k11.0k shares |
| SIMPLEX TRADING, LLC | Added | $476.6k9.0k shares |
| GROUP ONE TRADING LLC | Reduced | $217.1k4.1k shares |
| MORGAN DEMPSEY CAPITAL MANAGEMENT LLC | Unchanged | $10.6k200 shares |
Biggest puts
| CITIGROUP INC | Reduced | $13.2m250.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $12.7m240.1k shares |
| CITADEL ADVISORS LLC | Added | $2.6m48.6k shares |
| Kathmere Capital Management, LLC | New | $1.9m35.0k shares |
| SIMPLEX TRADING, LLC | Reduced | $1.3m25.4k shares |
| Crawford Fund Management, LLC | New | $1.3m25.0k shares |
| IMC-Chicago, LLC | Unchanged | $921.5k17.4k shares |
| J. Goldman & Co LP | New | $529.6k10.0k shares |
| JANE STREET GROUP, LLC | Reduced | $381.3k7.2k shares |
| GROUP ONE TRADING LLC | Reduced | $116.5k2.2k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Insider purchases and sales in Q1 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q2 2024 | 0 | — | 0 | — | — |
| Q3 2024 | 0 | — | 0 | — | — |
| Q4 2024 | 0 | — | 1 | $495.1k | — |
| Q1 2025 | 0 | — | 3 | $17.6m | — |
| Q2 2025 | 1 | $249.9k | 2 | $2.9m | — |
| Q3 2025 | 0 | — | 1 | $940.1k | — |
| Q4 2025 | 0 | — | 0 | — | — |
| Q1 2026 | 0 | — | 0 | — | — |
None reported in Q1 2026.
Holders, Q1 2026
| Manager | Shares | Change |
|---|---|---|
| PRICE T ROWE ASSOCIATES INC /MD/ 0.02% of their portfolio | 2.7m $143.5m | Reduced -25.7k |
| VAN ECK ASSOCIATES CORP 0.08% of their portfolio | 2.1m $111.7m | Added +976.6k |
| UBS Group AG 0.01% of their portfolio | 1.3m $70.9m | Added +726.9k |
| MORGAN STANLEY 0.00% of their portfolio | 854.6k $45.3m | Reduced -13.3k |
| Legal & General Group Plc 0.01% of their portfolio | 784.0k $41.5m | Added +64.1k |
| D. E. Shaw & Co., Inc. 0.02% of their portfolio | 543.3k $28.8m | Added +264.8k |
| TWO SIGMA INVESTMENTS, LP 0.02% of their portfolio | 524.0k $27.8m | Added +451.6k |
| Qube Research & Technologies Ltd 0.04% of their portfolio | 485.8k $25.7m | Added +295.9k |
| Muzinich & Co., Inc. 8.98% of their portfolio | 484.8k $25.7m | Added +44.8k |
| ADELL HARRIMAN & CARPENTER INC 1.57% of their portfolio | 484.6k $25.7m | Added +6.1k |
| Invesco Ltd. 0.00% of their portfolio | 432.5k $22.9m | Added +12.7k |
| BlackRock, Inc. 0.00% of their portfolio | 424.2k $22.5m | Added +214.1k |
| Sumitomo Mitsui Trust Group, Inc. 0.01% of their portfolio | 370.5k $19.6m | Added +15.0k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 359.8k $19.1m | Added +112.8k |
| LPL Financial LLC 0.00% of their portfolio | 347.9k $18.4m | Reduced -447 |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 320.9k $17.0m | Added +19.2k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 313.4k $16.6m | Reduced -43.4k |
| CHILDRESS CAPITAL ADVISORS, LLC 2.81% of their portfolio | 293.7k $15.6m | Unchanged |
| PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO 0.06% of their portfolio | 281.4k $14.9m | Added +1.2k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 263.7k $13.9m | Added +10.9k |
| SANDERS MORRIS HARRIS LLC 1.99% of their portfolio | 237.3k $12.6m | New |
| MARSHALL WACE, LLP 0.01% of their portfolio | 205.4k $10.9m | New |
| Trinity Legacy Partners, LLC 2.48% of their portfolio | 203.2k $11.5m | Added +11.7k |
| Private Advisor Group, LLC 0.04% of their portfolio | 170.3k $9.0m | Reduced -2.9k |
| OSAIC HOLDINGS, INC. 0.01% of their portfolio | 169.7k $9.0m | Reduced -1.0k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 167.9k $8.7m | Reduced -53.3k |
| BENJAMIN EDWARDS INC 0.08% of their portfolio | 153.6k $8.1m | Reduced -3.2k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 151.2k $8.0m | Added +1.7k |
| Cambridge Investment Research Advisors, Inc. 0.02% of their portfolio | 144.9k $7.7m | Reduced -3.3k |
| Trexquant Investment LP 0.05% of their portfolio | 142.5k $7.5m | Added +123.9k |
| U.S. Capital Wealth Advisors, LLC 0.19% of their portfolio | 139.1k $7.4m | Added +338 |
| Bridgelight Financial Advisors, Inc. 6.13% of their portfolio | 136.6k $7.2m | Added +1.5k |
| Joel Isaacson & Co., LLC 0.23% of their portfolio | 129.0k $6.8m | Added +176 |
| TCTC Holdings, LLC 0.19% of their portfolio | 129.0k $6.8m | Added +2.2k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 127.3k $6.7m | Added +79.7k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 126.9k $6.7m | Reduced -26.6k |
| HOURGLASS CAPITAL, LLC 1.36% of their portfolio | 123.5k $6.5m | Reduced -1.3k |
| Balyasny Asset Management L.P. 0.01% of their portfolio | 120.0k $6.4m | Added +6.6k |
| Sound Income Strategies, LLC 0.30% of their portfolio | 118.2k $6.1m | Reduced -217.9k |
| MGO ONE SEVEN LLC 0.12% of their portfolio | 115.0k $6.1m | Added +19.9k |
| Hamilton Point Investment Advisors, LLC 0.93% of their portfolio | 113.6k $6.0m | Reduced -370 |
| Segment Wealth Management, LLC 0.35% of their portfolio | 113.0k $6.0m | Reduced -7.2k |
| Advisors Asset Management, Inc. 0.10% of their portfolio | 111.2k $5.9m | Reduced -768 |
| STATE STREET CORP 0.00% of their portfolio | 110.7k $5.9m | New |
| J.W. COLE ADVISORS, INC. 0.19% of their portfolio | 106.9k $5.7m | Reduced -1.7k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 103.7k $5.5m | Added +3.4k |
| Integrated Wealth Concepts LLC 0.04% of their portfolio | 103.1k $5.5m | Added +4.3k |
| DENALI ADVISORS LLC 0.60% of their portfolio | 101.5k $5.4m | Reduced -4.8k |
| Meridian Wealth Management, LLC 0.19% of their portfolio | 101.2k $5.4m | Added +2.9k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 97.6k $5.2m | Reduced -3.7k |
| CANADA LIFE ASSURANCE Co 0.01% of their portfolio | 97.6k $5.2m | Added +73.9k |
| HighTower Advisors, LLC 0.01% of their portfolio | 95.6k $5.1m | Added +1.2k |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 94.5k $5.0m | Reduced -61.4k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 92.2k $4.9m | Reduced -5.7k |
| CONFLUENCE INVESTMENT MANAGEMENT LLC 0.07% of their portfolio | 91.0k $4.8m | Reduced -6.1k |
| Quantbot Technologies LP 0.19% of their portfolio | 88.7k $4.7m | Added +41.1k |
| CoreCap Advisors, LLC 0.16% of their portfolio | 86.9k $4.6m | Added +11.4k |
| ALBION FINANCIAL GROUP /UT 0.30% of their portfolio | 86.9k $4.6m | Added +120 |
| Naviter Wealth, LLC 0.56% of their portfolio | 85.0k $4.5m | Added +11.0k |
| Creative Planning 0.00% of their portfolio | 82.2k $4.4m | Added +4.8k |
| Texas Yale Capital Corp. 0.12% of their portfolio | 79.6k $4.2m | Reduced -850 |
| Engineers Gate Manager LP 0.05% of their portfolio | 73.2k $3.9m | Added +42.6k |
| TUDOR INVESTMENT CORP ET AL 0.02% of their portfolio | 72.9k $3.9m | Reduced -165.9k |
| Cetera Investment Advisers 0.00% of their portfolio | 72.3k $3.8m | Reduced -2.3k |
| Point72 Asset Management, L.P. 0.01% of their portfolio | 72.1k $3.8m | New |
| MORGAN DEMPSEY CAPITAL MANAGEMENT LLC 1.73% of their portfolio | 71.6k $3.8m | Reduced -1.9k |
| COMMONWEALTH EQUITY SERVICES, LLC 0.01% of their portfolio | 69.5k $3.7m | Reduced -1.3k |
| FJ Capital Management LLC 0.40% of their portfolio | 67.7k $3.6m | New |
| Baker Avenue Asset Management, LP 0.08% of their portfolio | 66.2k $3.5m | Added +3.1k |
| Pembroke Management, LTD 0.50% of their portfolio | 64.9k $3.4m | Added +408 |
| Larson Financial Group LLC 0.10% of their portfolio | 60.4k $3.2m | Added +2.1k |
| Mariner, LLC 0.00% of their portfolio | 59.8k $3.2m | Added +24.2k |
| IHT Wealth Management, LLC 0.07% of their portfolio | 58.1k $3.1m | Added +1.4k |
| Fund Advisors of America Inc/FL 3.11% of their portfolio | 57.9k $3.1m | Added +2.0k |
| Kestra Advisory Services, LLC 0.01% of their portfolio | 57.6k $3.1m | Reduced -629 |
| Midwest Professional Planners, LTD. 0.68% of their portfolio | 54.4k $2.9m | Added +2.5k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.11% of their portfolio | 53.8k $2.8m | Reduced -22.7k |
| Rockefeller Capital Management L.P. 0.00% of their portfolio | 52.5k $2.8m | Reduced -2.0k |
| Beacon Pointe Advisors, LLC 0.01% of their portfolio | 51.6k $2.7m | Reduced -3.7k |
| M&T Bank Corp 0.01% of their portfolio | 51.4k $2.7m | Added +22 |
| Taylor Frigon Capital Management LLC 1.51% of their portfolio | 50.1k $2.7m | Reduced -3.1k |
| Prospera Financial Services Inc 0.04% of their portfolio | 49.2k $2.6m | Added +932 |
| VESTOR CAPITAL, LLC 0.19% of their portfolio | 48.4k $2.6m | Added +47.1k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 47.8k $2.5m | Added +47.1k |
| Capital Investment Advisors, LLC 0.04% of their portfolio | 46.1k $2.4m | Reduced -3.8k |
| BARCLAYS PLC 0.00% of their portfolio | 44.5k $2.4m | Added +44.5k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 44.3k $2.3m | Added +3.2k |
| First Financial Bankshares Inc 0.05% of their portfolio | 43.5k $2.3m | Added +2.6k |
| Schonfeld Strategic Advisors LLC 0.02% of their portfolio | 43.0k $2.3m | New |
| Focus Financial Network, Inc. 0.08% of their portfolio | 42.8k $2.3m | Added +4.0k |
| KING LUTHER CAPITAL MANAGEMENT CORP 0.01% of their portfolio | 42.4k $2.2m | Unchanged |
| Geneos Wealth Management Inc. 0.05% of their portfolio | 41.6k $2.2m | Added +6.4k |
| NewEdge Advisors, LLC 0.01% of their portfolio | 41.1k $2.2m | Added +34.8k |
| NEUBERGER BERMAN GROUP LLC 0.00% of their portfolio | 40.9k $2.2m | New |
| CWM, LLC 0.01% of their portfolio | 39.8k $2.1m | Reduced -11.1k |
| BLAIR WILLIAM & CO/IL 0.01% of their portfolio | 39.0k $2.1m | Added +244 |
| Foundations Investment Advisors, LLC 0.03% of their portfolio | 38.5k $2.0m | Added +925 |
| GSA CAPITAL PARTNERS LLP 0.12% of their portfolio | 37.4k $2.0m | Added +20.6k |
| Entropy Technologies, LP 0.09% of their portfolio | 37.1k $2.0m | New |
| SHARPEPOINT LLC 1.14% of their portfolio | 36.2k $1.9m | Added +5.2k |