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 | |
|---|---|---|---|---|---|---|
|
SNBC
2826
DELISTED
Sun Bancorp Inc
SNBC
| $24K | ﹤0.01% |
1,046
+56
| +6% | +$1.24K |
|
|
QUNR
2827
CALL
DELISTED
Qunar Cayman Islands Limited
QUNR
| $24K | ﹤0.01% |
139
-126
| -48% | -$3.72K |
|
2828
CALL
Allstate
ALL
$66.9B
| $23K | ﹤0.01% |
396
-109
| -22% | -$7.51K |
|
2829
PUT
AngloGold Ashanti
AU
$40.3B
| $23K | ﹤0.01% |
312
-32
| -9% | -$608 |
|
2830
PUT
Axos Financial
AX
$5.45B
| $23K | ﹤0.01% |
214
-166
| -44% | -$3.22K |
|
2831
Baxter International
BAX
$11.6B
| $23K | ﹤0.01% |
+500
| New | +$23.6K |
|
2832
PUT
BorgWarner
BWA
$13.2B
| $23K | ﹤0.01% |
86
-26
| -23% | -$766 |
|
2833
CALL
Compass Minerals
CMP
$1.24B
| $23K | ﹤0.01% |
103
+83
| +415% | +$6.01K |
|
2834
PUT
CSX Corp
CSX
$98.6B
| $23K | ﹤0.01% |
3,117
+2,526
| +427% | +$23.9K |
|
|
CTRA
2835
CALL
DELISTED
Coterra Energy
CTRA
| $23K | ﹤0.01% |
382
-66
| -15% | -$1.65K |
|
2836
PUT
Cytokinetics
CYTK
$11B
| $23K | ﹤0.01% |
+125
| New | +$1.3K |
|
2837
CALL
Dolby
DLB
$4.72B
| $23K | ﹤0.01% |
28
-3
| -10% | -$150 |
|
2838
CALL
First Horizon
FHN
$12.1B
| $23K | ﹤0.01% |
313
+295
| +1,639% | +$4.37K |
|
2839
Herc Holdings
HRI
$5.43B
| $23K | ﹤0.01% |
+697
| New | +$23.4K |
|
2840
PUT
Integra LifeSciences
IART
$1.54B
| $23K | ﹤0.01% |
+216
| New | +$9.05K |
|
2841
PUT
MGIC Investment
MTG
$6.27B
| $23K | ﹤0.01% |
674
+617
| +1,082% | +$4.59K |
|
|
PCH
2842
CALL
DELISTED
PotlatchDeltic
PCH
| $23K | ﹤0.01% |
112
-53
| -32% | -$1.99K |
|
2843
CALL
Parker-Hannifin
PH
$125B
| $23K | ﹤0.01% |
45
-70
| -61% | -$8.34K |
|
2844
PUT
SFL Corp
SFL
$1.59B
| $23K | ﹤0.01% |
310
+235
| +313% | +$3.52K |
|
2845
STAAR Surgical
STAA
$1.16B
| $23K | ﹤0.01% |
2,458
+2,366
| +2,572% | +$19K |
|
2846
PUT
V2X
VVX
$2.62B
| $23K | ﹤0.01% |
+24
| New | +$720 |
|
2847
PUT
Welltower
WELL
$178B
| $23K | ﹤0.01% |
253
+71
| +39% | +$5.44K |
|
2848
PUT
W.P. Carey
WPC
$17.1B
| $23K | ﹤0.01% |
109
+31
| +40% | +$2.07K |
|
|
BBBY
2849
CALL
DELISTED
Bed Bath & Beyond Inc
BBBY
| $23K | ﹤0.01% |
310
-237
| -43% | -$10.5K |
|
|
VCRA
2850
CALL
DELISTED
VOCERA COMMUNICATIONS, INC.
VCRA
| $23K | ﹤0.01% |
+81
| New | +$1.24K |
|
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.