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
| Rank | Stock | Value |
|---|---|---|
| 1 |
Gilead Sciences
GILD
|
+$17.3M |
| 2 |
Apple
AAPL
|
+$15.2M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$14.9M |
| 4 |
Booking.com
BKNG
|
+$14.7M |
| 5 |
Wells Fargo
WFC
|
+$12.9M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
SPDR Gold Trust
GLD
|
+$38.3M |
| 2 |
QIHU
QIHOO 360 TECHNOLOGY CO LTD ADS RPSTG 3 CL A SHS
QIHU
|
+$30.7M |
| 3 |
LNKD
LinkedIn Corporation
LNKD
|
+$15.2M |
| 4 |
CELG
Celgene Corp
CELG
|
+$12.6M |
| 5 |
ProShares Trust UltraShort Lehman 20+ Year Treasury
TBT
|
+$10.4M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Communication Services | 8.39% |
| 2 | Healthcare | 8.28% |
| 3 | Consumer Discretionary | 6.84% |
| 4 | Technology | 6.06% |
| 5 | Financials | 4.39% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
826
PUT
Altria Group
MO
$121B
| $272K | 0.02% |
1,727
-445
| -20% | -$29.6K |
|
827
PUT
Dollar General
DG
$26.5B
| $271K | 0.02% |
1,079
+468
| +77% | +$39.6K |
|
828
Caesars Entertainment
CZR
$6.1B
| $270K | 0.02% |
+19,253
| New | +$277K |
|
829
HF Sinclair
DINO
$16.4B
| $270K | 0.02% |
11,032
+1,691
| +18% | +$42.5K |
|
|
ACOR
830
PUT
DELISTED
Acorda Therapeutics
ACOR
| $270K | 0.02% |
5
+3
| +150% | +$8.95K |
|
831
Bank OZK
OZK
$5.56B
| $269K | 0.02% |
+7,026
| New | +$266K |
|
832
CALL
Prudential Financial
PRU
$41.3B
| $269K | 0.02% |
747
+108
| +17% | +$8.29K |
|
833
PUT
United Rentals
URI
$64.8B
| $269K | 0.02% |
404
+108
| +36% | +$8.28K |
|
|
GRA
834
DELISTED
W.R. Grace & Co.
GRA
| $269K | 0.02% |
3,645
-3,030
| -45% | -$229K |
|
835
Campbell Soup
CPB
$6.52B
| $268K | 0.02% |
+4,904
| New | +$297K |
|
836
PUT
lululemon athletica
LULU
$12.9B
| $268K | 0.02% |
663
-512
| -44% | -$37.8K |
|
837
iShares National Muni Bond ETF
MUB
$45.2B
| $268K | 0.02% |
+2,378
| New | +$269K |
|
|
AFAM
838
DELISTED
Almost Family Inc
AFAM
| $268K | 0.02% |
+7,308
| New | +$285K |
|
|
LVLT
839
DELISTED
Level 3 Communications Inc
LVLT
| $267K | 0.02% |
5,774
+3,576
| +163% | +$181K |
|
840
PUT
DuPont de Nemours
DD
$18.9B
| $266K | 0.02% |
596
+391
| +191% | +$52.1K |
|
841
State Street SPDR EURO STOXX 50 ETF
FEZ
$4.33B
| $266K | 0.02% |
8,149
+1,260
| +18% | +$40.7K |
|
842
PUT
Lands' End
LE
$370M
| $265K | 0.02% |
340
+238
| +233% | +$3.94K |
|
843
LivePerson
LPSN
$18.6M
| $265K | 0.02% |
2,108
+158
| +8% | +$18K |
|
844
CALL
Chord Energy
CHRD
$7.74B
| $264K | 0.02% |
1,311
+1,159
| +763% | +$10.6K |
|
845
CALL
Dollar Tree
DLTR
$23.5B
| $264K | 0.02% |
453
-241
| -35% | -$21.7K |
|
846
Gen Digital
GEN
$15.4B
| $264K | 0.02% |
+10,518
| New | +$239K |
|
|
IDTI
847
DELISTED
Integrated Device Technology I
IDTI
| $264K | 0.02% |
+11,435
| New | +$236K |
|
|
SCTY
848
CALL
DELISTED
SolarCity Corporation
SCTY
| $264K | 0.02% |
3,491
-2,533
| -42% | -$56.8K |
|
849
PUT
Hain Celestial
HAIN
$51.4M
| $263K | 0.02% |
448
+362
| +421% | +$15.9K |
|
850
Clearway Energy Class C
CWEN
$5.25B
| $262K | 0.02% |
15,458
+10,641
| +221% | +$183K |
|
Similar funds
Simplex Trading's Q3 2016 Portfolio in Review
As of Q3 2016, Simplex Trading held 7,235 positions worth $1.48B, down 1.4% from $1.5B the previous quarter. Its ten largest holdings account for 18% of the portfolio.
Simplex Trading withdrew a net $87.1M in Q3 2016, closing 1,479 positions and reducing 1,939 holdings. Its most notable exit was SPDR Gold Trust, an estimated $38.3M position sold in full.
By sector, the portfolio is most concentrated in Communication Services at 8.4% of assets, up from 6.6% a quarter earlier, followed by Healthcare and Consumer Discretionary.
Against the trend, Simplex Trading opened a new position in Booking.com worth $15.6M.
- Simplex Trading's largest Q3 2016 buy was Booking.com: 264,225 shares worth $15.6M.
- Simplex Trading added most to Gilead Sciences in Q3 2016, an estimated $17.3M increase.
- Simplex Trading's biggest Q3 2016 reduction was LinkedIn Corporation, cutting an estimated $15.2M.
- Simplex Trading fully exited SPDR Gold Trust in Q3 2016, selling an estimated $38.3M.
- Simplex Trading's ten largest holdings make up 18% of its $1.48B portfolio in Q3 2016.
- Simplex Trading opened 1,460 new positions and closed 1,479 in Q3 2016.
- Simplex Trading's portfolio value fell 1.4% quarter-over-quarter to $1.48B.
Based on Simplex Trading's 13F filing for Q3 2016, filed 7 Oct 2016.