Simplex Trading

Simplex Trading Portfolio holdings

AUM $3.72B
1-Year Return 0.6%
 

Simplex Trading, founded in 2004 and headquartered in Chicago, Illinois, is a technology-driven proprietary trading firm specializing in market-making and liquidity provision, primarily in U.S. equity options and futures options. Leveraging advanced proprietary software and data-driven analysis, the firm optimizes trading strategies and develops innovative solutions to capitalize on financial market opportunities, maintaining a competitive edge through automation and a collaborative team of technologists and traders. With a workforce exceeding 300 and led by CEO Erik Swanson since 2014, Simplex operates with a low-ego, high-intelligence culture, focusing on minimal bureaucracy and rapid execution, while also making strategic venture capital investments in fintech startups. Recognized as a top workplace in Chicago by Built In’s 2025 awards, Simplex continues to evolve, blending cutting-edge technology with a commitment to market efficiency and growth.

This Quarter Return
+0.1%
1 Year Return
+0.6%
3 Year Return
+1.23%
5 Year Return
+2.7%
10 Year Return
+32.99%
AUM
$3.55B
AUM Growth
+$583M
Cap. Flow
+$629M
Cap. Flow %
17.73%
Top 10 Hldgs %
31.05%
Holding
4,446
New
949
Increased
764
Reduced
722
Closed
799

Sector Composition

1 Technology 34.29%
2 Consumer Discretionary 11.38%
3 Healthcare 9.65%
4 Financials 6.33%
5 Communication Services 5.52%
Name Market Value Portfolio Weight Shares or Principal Shares
Change %
Capital Flow
FTEC icon
1526
Fidelity MSCI Information Technology Index ETF
FTEC
$15.5B
$35K ﹤0.01%
192
+64
+50% +$11.7K
LDI icon
1527
loanDepot
LDI
$854M
$35K ﹤0.01%
17,583
-49,459
-74% -$98.5K
REVG icon
1528
REV Group
REVG
$3.07B
$35K ﹤0.01%
+1,127
New +$35K
ROAD icon
1529
Construction Partners
ROAD
$6.96B
$35K ﹤0.01%
+403
New +$35K
SLX icon
1530
VanEck Steel ETF
SLX
$82.6M
$35K ﹤0.01%
+615
New +$35K
TZOO icon
1531
Travelzoo
TZOO
$105M
$35K ﹤0.01%
1,784
+1,071
+150% +$21K
CRWL
1532
GraniteShares 2x Long CRWD Daily ETF
CRWL
$41.6M
$35K ﹤0.01%
+1,510
New +$35K
MODV
1533
DELISTED
ModivCare
MODV
$34K ﹤0.01%
+2,886
New +$34K
NVEE
1534
DELISTED
NV5 Global
NVEE
$34K ﹤0.01%
1,808
+1,596
+753% +$30K
RDFN
1535
DELISTED
Redfin
RDFN
$34K ﹤0.01%
+4,385
New +$34K
BRDG
1536
DELISTED
Bridge Investment Group
BRDG
$33K ﹤0.01%
+4,031
New +$33K
DV icon
1537
DoubleVerify
DV
$2.18B
$33K ﹤0.01%
1,737
-9,273
-84% -$176K
HUBG icon
1538
HUB Group
HUBG
$2.26B
$33K ﹤0.01%
+748
New +$33K
IMO icon
1539
Imperial Oil
IMO
$46.8B
$33K ﹤0.01%
542
+321
+145% +$19.5K
IRMD icon
1540
iRadimed
IRMD
$918M
$33K ﹤0.01%
+607
New +$33K
KOPN icon
1541
Kopin
KOPN
$357M
$33K ﹤0.01%
24,680
-5,098
-17% -$6.82K
KTEC icon
1542
KraneShares Hang Seng TECH Index ETF
KTEC
$52.1M
$33K ﹤0.01%
2,499
+2,396
+2,326% +$31.6K
LQDT icon
1543
Liquidity Services
LQDT
$849M
$33K ﹤0.01%
+1,044
New +$33K
SNCY icon
1544
Sun Country Airlines
SNCY
$741M
$33K ﹤0.01%
2,264
-1,537
-40% -$22.4K
APAM icon
1545
Artisan Partners
APAM
$3.28B
$32K ﹤0.01%
+765
New +$32K
BBT
1546
Beacon Financial Corporation
BBT
$2.19B
$32K ﹤0.01%
+1,128
New +$32K
CPT icon
1547
Camden Property Trust
CPT
$11.8B
$32K ﹤0.01%
281
-304
-52% -$34.6K
CUZ icon
1548
Cousins Properties
CUZ
$4.95B
$32K ﹤0.01%
+1,045
New +$32K
HEES
1549
DELISTED
H&E Equipment Services
HEES
$32K ﹤0.01%
+667
New +$32K
MGY icon
1550
Magnolia Oil & Gas
MGY
$4.46B
$32K ﹤0.01%
1,384
-7,308
-84% -$169K