Simplex Trading
MAIN icon

Simplex Trading’s Main Street Capital MAIN Stock Holding History

Simplex Trading’s Portfolio MAIN Stock Details MAIN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$477K Buy
9,000
+5,800
+181% +$344K ﹤0.01% 3320
2025
Q4 		$193K Sell
3,200
-8,900
-74% -$525K ﹤0.01% 4273
2025
Q3 		$769K Sell
12,100
-2,800
-19% -$181K ﹤0.01% 3320
2025
Q2 		$880K Buy
14,900
+7,800
+110% +$431K ﹤0.01% 2905
2025
Q1 		$401K Sell
7,100
-4,700
-40% -$279K ﹤0.01% 3632
2024
Q4 		$691K Sell
11,800
-600
-5% -$32K ﹤0.01% 3217
2024
Q3 		$621K Sell
12,400
-6,900
-36% -$345K ﹤0.01% 3359
2024
Q2 		$974K Sell
19,300
-4,400
-19% -$215K ﹤0.01% 2940
2024
Q1 		$1.12M Buy
23,700
+13,400
+130% +$606K ﹤0.01% 3000
2023
Q4 		$445K Sell
10,300
-1,900
-16% -$77.6K ﹤0.01% 3819
2023
Q3 		$495K Sell
12,200
-19,800
-62% -$808K ﹤0.01% 3410
2023
Q2 		$1.28M Sell
32,000
-32,400
-50% -$1.29M ﹤0.01% 2374
2023
Q1 		$2.54M Buy
64,400
+44,200
+219% +$1.74M ﹤0.01% 1753
2022
Q4 		$746K Sell
20,200
-35,400
-64% -$1.29M ﹤0.01% 2759
2022
Q3 		$1.87M Sell
55,600
-4,100
-7% -$169K ﹤0.01% 2021
2022
Q2 		$2.3M Buy
59,700
+32,600
+120% +$1.27M ﹤0.01% 1731
2022
Q1 		$1.16M Buy
27,100
+5,600
+26% +$240K ﹤0.01% 2742
2021
Q4 		$964K Sell
21,500
-3,600
-14% -$158K ﹤0.01% 2906
2021
Q3 		$1.03M Hold
25,100
– – ﹤0.01% 3013
2021
Q2 		$1.03M Buy
25,100
+24,990
+22,718% +$1.04M ﹤0.01% 3067
2021
Q1 		$430K Buy
110
+34
+45% +$1.19K ﹤0.01% 3587
2020
Q4 		$245K Buy
76
+27
+55% +$829 ﹤0.01% 4341
2020
Q3 		$144K Sell
49
-50
-51% -$1.53K ﹤0.01% 4508
2020
Q2 		$308K Sell
99
-130
-57% -$3.67K ﹤0.01% 3490
2020
Q1 		$469K Buy
229
+145
+173% +$5.42K ﹤0.01% 2661
2019
Q4 		$362K Sell
84
-11
-12% -$470 ﹤0.01% 3073
2019
Q3 		$410K Buy
95
+54
+132% +$2.31K ﹤0.01% 2817
2019
Q2 		$168K Buy
41
+20
+95% +$797 ﹤0.01% 3649
2019
Q1 		$78K Sell
21
-2
-9% -$74 ﹤0.01% 4598
2018
Q4 		$77K Buy
23
+15
+188% +$558 ﹤0.01% 4109
2018
Q3 		$30K Sell
8
-12
-60% -$475 ﹤0.01% 5645
2018
Q2 		$76K Buy
+20
New +$761 ﹤0.01% 4598
2017
Q2 		– Sell
-24
Closed -$3K – 6492
2017
Q1 		$3K Buy
24
+21
+700% +$776 ﹤0.01% 5021
2016
Q4 		$1K Buy
+3
New +$106 ﹤0.01% 5429
2016
Q3 		– Sell
-57
Closed -$13K – 6173
2016
Q2 		$13K Buy
57
+12
+27% +$382 ﹤0.01% 3332
2016
Q1 		$2K Buy
+45
New +$1.31K ﹤0.01% 4742
2015
Q1 		– Sell
-14
Closed -$1K – 5303
2014
Q4 		$1K Buy
+14
New +$432 ﹤0.01% 4172

Other funds holding MAIN

T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
VanEck Associates
VanEck Associates New York $133B AUM 72.99% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Legal & General Group
Legal & General Group London, United Kingdom $432B AUM 29.4% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT) London, United Kingdom $89.9B AUM 20.22% 1-Year Est. Return
MC
Muzinich & Co New York $286M AUM 21.05% 1-Year Est. Return
AHC
Adell Harriman & Carpenter Houston, Texas $1.64B AUM 36.77% 1-Year Est. Return

Simplex Trading's MAIN Position: Q1 2026 in Review

Simplex Trading reduced its Main Street Capital (MAIN) stake by 72% in Q1 2026, selling an estimated $73.6K and leaving 480 shares worth $25.4K. The position accounts for ﹤0.01% of the portfolio, ranked #6560.

Simplex Trading first reported a position in MAIN in Q2 2015 and has held it in 18 quarters since. The position peaked at $1.14M in Q1 2025. 421 funds tracked by Wall St. Rank hold MAIN as of Q1 2026.

  • Simplex Trading held 480 shares of Main Street Capital worth $25.4K as of Q1 2026.
  • Simplex Trading sold 1,243 Main Street Capital shares in Q1 2026, an estimated $73.6K.
  • Main Street Capital made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #6560 holding.
  • Simplex Trading first reported a position in Main Street Capital in Q2 2015 and has held it in 18 quarters since.
  • Simplex Trading's Main Street Capital position peaked at $1.14M in Q1 2025.
  • 421 funds tracked by Wall St. Rank held Main Street Capital as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.