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 |
LNKD
LinkedIn Corporation
LNKD
|
+$21.4M |
| 2 |
SPDR Gold Trust
GLD
|
+$17.3M |
| 3 |
QIHU
QIHOO 360 TECHNOLOGY CO LTD ADS RPSTG 3 CL A SHS
QIHU
|
+$15M |
| 4 |
Biogen
BIIB
|
+$14.9M |
| 5 |
Visa
V
|
+$14.1M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Broadcom
AVGO
|
+$36.7M |
| 2 |
Alphabet (Google) Class C
GOOG
|
+$20.1M |
| 3 |
iShares MSCI Emerging Markets ETF
EEM
|
+$15.8M |
| 4 |
Citigroup
C
|
+$14.7M |
| 5 |
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
|
+$13.1M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Communication Services | 6.61% |
| 2 | Healthcare | 6.55% |
| 3 | Technology | 6.45% |
| 4 | Consumer Discretionary | 4.54% |
| 5 | Financials | 4.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
926
Lloyds Banking Group
LYG
$86.8B
| $222K | 0.01% |
74,814
+35,642
| +91% | +$140K |
|
927
CALL
Conagra Brands
CAG
$6.81B
| $221K | 0.01% |
1,013
+471
| +87% | +$16.8K |
|
928
CALL
Equinix
EQIX
$102B
| $221K | 0.01% |
114
-13
| -10% | -$4.54K |
|
929
CALL
Coca-Cola
KO
$349B
| $221K | 0.01% |
1,780
-57
| -3% | -$2.58K |
|
930
Mercado Libre
MELI
$90.9B
| $221K | 0.01% |
1,574
+992
| +170% | +$129K |
|
931
PUT
YPF
YPF
$20.7B
| $221K | 0.01% |
2,680
-259
| -9% | -$5.15K |
|
|
DDC
932
DELISTED
Dominion Diamond Corporation
DDC
| $221K | 0.01% |
+25,010
| New | +$267K |
|
933
CACI
CACI
$10.6B
| $220K | 0.01% |
+2,440
| New | +$242K |
|
934
PUT
American International
AIG
$41.5B
| $219K | 0.01% |
905
-1,030
| -53% | -$56.9K |
|
935
CALL
Oneok
OKE
$58.4B
| $219K | 0.01% |
631
-126
| -17% | -$5K |
|
|
AUO
936
DELISTED
AU Optronics Corp
AUO
| $219K | 0.01% |
62,896
+62,845
| +123,225% | +$178K |
|
|
WPRT
937
PUT
Westport Fuel Systems
WPRT
$35.9M
| $218K | 0.01% |
16
+5
| +45% | +$108 |
|
|
SUNE
938
PUT
DELISTED
SUNEDISON, INC COM
SUNE
| $217K | 0.01% |
1,349
-4,816
| -78% | -$1.76K |
|
939
PUT
Prudential Financial
PRU
$40.7B
| $216K | 0.01% |
886
+37
| +4% | +$2.79K |
|
940
PUT
Synchrony
SYF
$23.1B
| $216K | 0.01% |
856
+447
| +109% | +$13K |
|
|
MMP
941
CALL
DELISTED
Magellan Midstream Partners, L.P.
MMP
| $216K | 0.01% |
816
+382
| +88% | +$27.1K |
|
942
CALL
Franco-Nevada
FNV
$41.4B
| $215K | 0.01% |
267
+27
| +11% | +$1.83K |
|
943
Intercontinental Exchange
ICE
$80.6B
| $215K | 0.01% |
4,200
-6,145
| -59% | -$310K |
|
944
CALL
lululemon athletica
LULU
$12.6B
| $215K | 0.01% |
527
-709
| -57% | -$47K |
|
|
SKX
945
PUT
DELISTED
Skechers
SKX
| $215K | 0.01% |
552
+307
| +125% | +$9.27K |
|
|
HDS
946
DELISTED
HD Supply Holdings, Inc.
HDS
| $215K | 0.01% |
+6,191
| New | +$211K |
|
947
State Street SPDR EURO STOXX 50 ETF
FEZ
$4.25B
| $214K | 0.01% |
6,889
-42,736
| -86% | -$1.41M |
|
948
Valero Energy
VLO
$92B
| $214K | 0.01% |
+4,214
| New | +$238K |
|
|
PRMW
949
DELISTED
Primo Water Corporation
PRMW
| $214K | 0.01% |
15,351
+13,877
| +941% | +$200K |
|
|
NSR
950
DELISTED
Neustar Inc
NSR
| $214K | 0.01% |
9,144
-1,673
| -15% | -$39.8K |
|
Similar funds
Simplex Trading's Q2 2016 Portfolio in Review
As of Q2 2016, Simplex Trading held 7,153 positions worth $1.5B, up 19% from $1.25B the previous quarter. Its ten largest holdings account for 19% of the portfolio.
Simplex Trading deployed $178M of net new capital in Q2 2016, opening 1,586 new positions and adding to 2,321 existing holdings. Its largest new stake was Biogen: 56,467 shares worth $13.7M.
By sector, the portfolio is most concentrated in Communication Services at 6.6% of assets, down from 6.9% a quarter earlier, followed by Healthcare and Technology.
On the sell side, the largest reduction was Broadcom, an estimated $36.7M trimmed.
- Simplex Trading's largest Q2 2016 buy was Biogen: 56,467 shares worth $13.7M.
- Simplex Trading added most to LinkedIn Corporation in Q2 2016, an estimated $21.4M increase.
- Simplex Trading's biggest Q2 2016 reduction was Broadcom, cutting an estimated $36.7M.
- Simplex Trading fully exited Alphabet (Google) Class C in Q2 2016, selling an estimated $20.1M.
- Simplex Trading's ten largest holdings make up 19% of its $1.5B portfolio in Q2 2016.
- Simplex Trading opened 1,586 new positions and closed 1,363 in Q2 2016.
- Simplex Trading's portfolio value rose 19% quarter-over-quarter to $1.5B.
Based on Simplex Trading's 13F filing for Q2 2016, filed 18 Jul 2016.