Simplex Trading Portfolio holdings
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.
Top Buys
| 1 |
Amazon
AMZN
|
+$102M |
| 2 |
TSMC
TSM
|
+$29.6M |
| 3 |
JPMorgan Chase
JPM
|
+$21.9M |
| 4 |
Boeing
BA
|
+$18.8M |
| 5 |
Target
TGT
|
+$13.5M |
Top Sells
| 1 |
SPDR Gold Trust
GLD
|
+$94.2M |
| 2 |
Tesla
TSLA
|
+$91.2M |
| 3 |
Invesco QQQ Trust
QQQ
|
+$81.5M |
| 4 |
NVIDIA
NVDA
|
+$60M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
+$40.5M |
Sector Composition
| 1 | Consumer Discretionary | 21.73% |
| 2 | Technology | 16.48% |
| 3 | Healthcare | 9.06% |
| 4 | Financials | 8.3% |
| 5 | Communication Services | 7.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
551
BJ's Restaurants
BJRI
$691M
| $465K | ﹤0.01% |
15,800
-16,729
| -51% | -$492K |
|
552
Direxion Daily S&P Biotech Bear 3X Shares
LABD
$73M
| $465K | ﹤0.01% |
7,806
+1,008
| +15% | +$60K |
|
553
Nektar Therapeutics
NKTR
$916M
| $464K | ﹤0.01% |
1,868
-167
| -8% | -$41.5K |
|
554
United States Gasoline Fund
UGA
$78M
| $464K | ﹤0.01% |
23,333
-15,023
| -39% | -$299K |
|
555
Plains GP Holdings
PAGP
$3.67B
| $462K | ﹤0.01% |
75,880
+29,379
| +63% | +$179K |
|
|
NEWR
556
DELISTED
New Relic, Inc.
NEWR
| $462K | ﹤0.01% |
+8,205
| New | +$462K |
|
557
Equifax
EFX
$30.3B
| $461K | ﹤0.01% |
2,943
+1,496
| +103% | +$234K |
|
558
Amicus Therapeutics
FOLD
$2.45B
| $460K | ﹤0.01% |
32,608
-55,465
| -63% | -$782K |
|
559
Paylocity
PCTY
$9.34B
| $458K | ﹤0.01% |
2,840
+2,087
| +277% | +$337K |
|
|
MFA
560
MFA Financial
MFA
$1.05B
| $457K | ﹤0.01% |
42,644
+245
| +0.6% | +$2.63K |
|
561
Howard Hughes
HHH
$4.68B
| $456K | ﹤0.01% |
8,316
+7,707
| +1,266% | +$423K |
|
|
JNPR
562
DELISTED
Juniper Networks
JNPR
| $453K | ﹤0.01% |
21,073
+18,205
| +635% | +$391K |
|
563
CarParts.com
PRTS
$47.5M
| $448K | ﹤0.01% |
41,457
+27,537
| +198% | +$298K |
|
564
Upwork
UPWK
$2.11B
| $447K | ﹤0.01% |
25,637
+21,520
| +523% | +$375K |
|
565
EverQuote
EVER
$849M
| $446K | ﹤0.01% |
+11,557
| New | +$446K |
|
566
ProShares Short 20+ Year Treasury ETF
TBF
$69.2M
| $442K | ﹤0.01% |
28,788
+25,518
| +780% | +$392K |
|
567
Rithm Capital
RITM
$6.63B
| $438K | ﹤0.01% |
55,187
+18,360
| +50% | +$146K |
|
|
TWOU
568
DELISTED
2U, Inc.
TWOU
| $438K | ﹤0.01% |
431
-110
| -20% | -$112K |
|
|
LSI
569
DELISTED
Life Storage, Inc.
LSI
| $438K | ﹤0.01% |
6,254
-13,774
| -69% | -$965K |
|
570
Clearfield
CLFD
$456M
| $436K | ﹤0.01% |
21,617
+21,481
| +15,795% | +$433K |
|
571
Cimpress
CMPR
$1.44B
| $436K | ﹤0.01% |
5,805
+5,334
| +1,132% | +$401K |
|
572
Omega Healthcare
OHI
$12.6B
| $436K | ﹤0.01% |
14,585
-8,471
| -37% | -$253K |
|
573
VF Corp
VFC
$5.85B
| $436K | ﹤0.01% |
6,214
-12,839
| -67% | -$901K |
|
574
Goodyear
GT
$2.45B
| $434K | ﹤0.01% |
56,683
+20,656
| +57% | +$158K |
|
575
LendingTree
TREE
$977M
| $433K | ﹤0.01% |
1,413
-84
| -6% | -$25.7K |
|