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 |
Amazon
AMZN
|
+$83.1M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$37.2M |
| 3 |
Amgen
AMGN
|
+$30.5M |
| 4 |
Micron Technology
MU
|
+$28.8M |
| 5 |
Qualcomm
QCOM
|
+$18.2M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$29.5M |
| 2 |
Goldman Sachs
GS
|
+$27.8M |
| 3 |
Gilead Sciences
GILD
|
+$27.6M |
| 4 |
Booking.com
BKNG
|
+$25.4M |
| 5 |
AT&T
T
|
+$19.6M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 13.55% |
| 2 | Communication Services | 11.57% |
| 3 | Consumer Discretionary | 9.69% |
| 4 | Healthcare | 7.28% |
| 5 | Financials | 4.17% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2701
CALL
Tyler Technologies
TYL
$12.2B
| $36K | ﹤0.01% |
33
-142
| -81% | -$23.6K |
|
2702
Veeco
VECO
$3.15B
| $36K | ﹤0.01% |
+1,299
| New | +$39.9K |
|
2703
CALL
Wabtec
WAB
$51.1B
| $36K | ﹤0.01% |
69
-44
| -39% | -$3.67K |
|
|
CZZ
2704
DELISTED
Cosan Limited
CZZ
| $36K | ﹤0.01% |
5,695
+5,243
| +1,160% | +$38.6K |
|
|
LTXB
2705
DELISTED
LegacyTexas Financial Group Inc
LTXB
| $36K | ﹤0.01% |
951
-7,997
| -89% | -$297K |
|
|
EGLT
2706
DELISTED
Egalet Corporation
EGLT
| $36K | ﹤0.01% |
15,315
+13,455
| +723% | +$43K |
|
|
CRC
2707
PUT
DELISTED
California Resources Corporation
CRC
| $36K | ﹤0.01% |
205
-392
| -66% | -$4.61K |
|
|
ENV
2708
CALL
DELISTED
ENVESTNET, INC.
ENV
| $36K | ﹤0.01% |
213
+29
| +16% | +$1.04K |
|
2709
PUT
Accenture
ACN
$89.9B
| $35K | ﹤0.01% |
200
-238
| -54% | -$29K |
|
2710
CALL
Akebia Therapeutics
AKBA
$327M
| $35K | ﹤0.01% |
124
+119
| +2,380% | +$1.51K |
|
2711
PUT
Ally Financial
ALLY
$13.1B
| $35K | ﹤0.01% |
773
-1,001
| -56% | -$19.7K |
|
2712
CALL
Avery Dennison
AVY
$12.3B
| $35K | ﹤0.01% |
107
+101
| +1,683% | +$8.46K |
|
2713
PUT
Axos Financial
AX
$5.45B
| $35K | ﹤0.01% |
206
-158
| -43% | -$3.74K |
|
2714
Celldex Therapeutics
CLDX
$2.77B
| $35K | ﹤0.01% |
+961
| New | +$42.5K |
|
2715
PUT
Canadian Imperial Bank of Commerce
CM
$107B
| $35K | ﹤0.01% |
530
+428
| +420% | +$17.3K |
|
|
CMA
2716
CALL
DELISTED
Comerica
CMA
| $35K | ﹤0.01% |
99
-536
| -84% | -$37.6K |
|
2717
CALL
First Horizon
FHN
$12.1B
| $35K | ﹤0.01% |
526
+385
| +273% | +$6.85K |
|
2718
CALL
HealthEquity
HQY
$7.91B
| $35K | ﹤0.01% |
104
+94
| +940% | +$4.4K |
|
2719
CALL
Intuit
INTU
$81.1B
| $35K | ﹤0.01% |
107
-20
| -16% | -$2.59K |
|
2720
Kulicke & Soffa
KLIC
$5.3B
| $35K | ﹤0.01% |
+1,861
| New | +$39.2K |
|
2721
PUT
Logitech
LOGI
$15.2B
| $35K | ﹤0.01% |
360
+259
| +256% | +$8.97K |
|
2722
Methanex
MEOH
$4.32B
| $35K | ﹤0.01% |
813
-15,052
| -95% | -$658K |
|
2723
CALL
PPG Industries
PPG
$25.9B
| $35K | ﹤0.01% |
133
-265
| -67% | -$28.7K |
|
2724
PUT
Phillips 66
PSX
$82.9B
| $35K | ﹤0.01% |
563
-365
| -39% | -$28.7K |
|
2725
CALL
Ryder
R
$10.3B
| $35K | ﹤0.01% |
64
+11
| +21% | +$761 |
|
Similar funds
Simplex Trading's Q2 2017 Portfolio in Review
As of Q2 2017, Simplex Trading held 7,527 positions worth $2.3B, down 0.39% from $2.31B the previous quarter. Its ten largest holdings account for 23% of the portfolio.
Simplex Trading withdrew a net $114M in Q2 2017, closing 1,474 positions and reducing 2,320 holdings. Its most notable exit was AT&T, an estimated $19.6M position sold in full.
By sector, the portfolio is most concentrated in Technology at 14% of assets, up from 9.7% a quarter earlier, followed by Communication Services and Consumer Discretionary.
Against the trend, Simplex Trading opened a new position in Amgen worth $32.3M.
- Simplex Trading's largest Q2 2017 buy was Amgen: 187,633 shares worth $32.3M.
- Simplex Trading added most to Amazon in Q2 2017, an estimated $83.1M increase.
- Simplex Trading's biggest Q2 2017 reduction was State Street SPDR S&P 500 ETF Trust, cutting an estimated $29.5M.
- Simplex Trading fully exited AT&T in Q2 2017, selling an estimated $19.6M.
- Simplex Trading's ten largest holdings make up 23% of its $2.3B portfolio in Q2 2017.
- Simplex Trading opened 1,408 new positions and closed 1,474 in Q2 2017.
- Simplex Trading's portfolio value fell 0.39% quarter-over-quarter to $2.3B.
Based on Simplex Trading's 13F filing for Q2 2017, filed 12 Jul 2017.