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 | |
|---|---|---|---|---|---|---|
3326
PUT
Imperial Oil
IMO
$60.8B
| $13K | ﹤0.01% |
177
+125
| +240% | +$3.96K |
|
3327
Inogen
INGN
$171M
| $13K | ﹤0.01% |
+260
| New | +$12.4K |
|
3328
CALL
Iovance Biotherapeutics
IOVA
$2.19B
| $13K | ﹤0.01% |
+292
| New | +$1.83K |
|
3329
CALL
KB Home
KBH
$3.53B
| $13K | ﹤0.01% |
121
-306
| -72% | -$4.27K |
|
3330
CALL
KKR & Co
KKR
$91.3B
| $13K | ﹤0.01% |
1,317
+809
| +159% | +$10.8K |
|
3331
CALL
Lincoln National
LNC
$7.88B
| $13K | ﹤0.01% |
100
+3
| +3% | +$127 |
|
3332
CALL
Main Street Capital
MAIN
$5B
| $13K | ﹤0.01% |
57
+12
| +27% | +$382 |
|
|
MOMO
3333
Hello Group
MOMO
$869M
| $13K | ﹤0.01% |
1,323
-50,701
| -97% | -$684K |
|
3334
CALL
Match Group
MTCH
$9.05B
| $13K | ﹤0.01% |
88
+14
| +19% | +$184 |
|
3335
CALL
Matador Resources
MTDR
$5.86B
| $13K | ﹤0.01% |
297
+131
| +79% | +$2.82K |
|
3336
PUT
Annaly Capital Management
NLY
$16.9B
| $13K | ﹤0.01% |
54
-3
| -5% | -$128 |
|
3337
CALL
Owens Corning
OC
$11.6B
| $13K | ﹤0.01% |
52
-162
| -76% | -$8.07K |
|
3338
PUT
Omnicom Group
OMC
$23.5B
| $13K | ﹤0.01% |
117
-88
| -43% | -$7.31K |
|
3339
PUT
Pultegroup
PHM
$24.9B
| $13K | ﹤0.01% |
309
+95
| +44% | +$1.76K |
|
3340
PJT Partners
PJT
$4.36B
| $13K | ﹤0.01% |
600
-3,652
| -86% | -$88K |
|
3341
PUT
CPI Card Group
PMTS
$235M
| $13K | ﹤0.01% |
6
-1
| -14% | -$31 |
|
3342
PUT
PPG Industries
PPG
$26.4B
| $13K | ﹤0.01% |
+33
| New | +$3.6K |
|
3343
CALL
Safety Insurance
SAFT
$1.51B
| $13K | ﹤0.01% |
+51
| New | +$2.99K |
|
3344
ALPS Medical Breakthroughs ETF
SBIO
$205M
| $13K | ﹤0.01% |
+602
| New | +$14.3K |
|
3345
CALL
Synaptics
SYNA
$4.55B
| $13K | ﹤0.01% |
89
-89
| -50% | -$6.12K |
|
3346
PUT
Texas Capital Bancshares
TCBI
$4.28B
| $13K | ﹤0.01% |
77
-795
| -91% | -$35.6K |
|
|
TGI
3347
CALL
DELISTED
Triumph Group
TGI
| $13K | ﹤0.01% |
128
+67
| +110% | +$2.42K |
|
3348
TG Therapeutics
TGTX
$8.53B
| $13K | ﹤0.01% |
2,150
-1,593
| -43% | -$12.9K |
|
3349
CALL
Toll Brothers
TOL
$14.1B
| $13K | ﹤0.01% |
397
+334
| +530% | +$9.38K |
|
|
TWO
3350
Two Harbors Investment
TWO
$1.27B
| $13K | ﹤0.01% |
197
-110
| -36% | -$7.24K |
|
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.