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 |
Alphabet (Google) Class C
GOOG
|
+$54.6M |
| 2 |
Apple
AAPL
|
+$29.1M |
| 3 |
Meta Platforms (Facebook)
META
|
+$15.7M |
| 4 |
IBM
IBM
|
+$13.8M |
| 5 |
Baidu
BIDU
|
+$10.6M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$10.1M |
| 2 |
McDonald's
MCD
|
+$8.46M |
| 3 |
Ralph Lauren
RL
|
+$5.36M |
| 4 |
Intel
INTC
|
+$5.04M |
| 5 |
WBA
Walgreens Boots Alliance
WBA
|
+$4.76M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Communication Services | 14.27% |
| 2 | Technology | 10.3% |
| 3 | Healthcare | 7.76% |
| 4 | Consumer Discretionary | 6.32% |
| 5 | Financials | 5.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1001
Hershey
HSY
$34.9B
| $140K | 0.01% |
1,585
-3,009
| -65% | -$284K |
|
1002
PUT
Synaptics
SYNA
$4.59B
| $140K | 0.01% |
282
+215
| +321% | +$19.6K |
|
1003
Texas Capital Bancshares
TCBI
$4.31B
| $140K | 0.01% |
+2,250
| New | +$123K |
|
|
RAI
1004
DELISTED
Reynolds American Inc
RAI
| $140K | 0.01% |
3,762
-22,792
| -86% | -$853K |
|
1005
Liberty Global Class C
LBTYK
$3.37B
| $139K | 0.01% |
+3,412
| New | +$141K |
|
|
AERI
1006
PUT
DELISTED
Aerie Pharmaceuticals
AERI
| $139K | 0.01% |
412
+376
| +1,044% | +$6.89K |
|
|
PVA
1007
DELISTED
PENN VIRGINIA CORP
PVA
| $139K | 0.01% |
+31,824
| New | +$181K |
|
|
ODP
1008
DELISTED
ODP
ODP
| $138K | 0.01% |
1,594
-1,217
| -43% | -$112K |
|
1009
PUT
Skyworks Solutions
SWKS
$9.1B
| $138K | 0.01% |
366
-87
| -19% | -$8.81K |
|
|
DCH
1010
Dauch Corp
DCH
$1.33B
| $137K | 0.01% |
+6,569
| New | +$159K |
|
1011
First Trust NYSE Arca Biotechnology Index Fund
FBT
$2.81B
| $137K | 0.01% |
1,109
-174
| -14% | -$21K |
|
|
LVLT
1012
DELISTED
Level 3 Communications Inc
LVLT
| $137K | 0.01% |
2,618
-109
| -4% | -$5.97K |
|
|
BHI
1013
PUT
DELISTED
Baker Hughes
BHI
| $137K | 0.01% |
383
-365
| -49% | -$23.9K |
|
|
OWW
1014
DELISTED
ORBITZ WORLDWIDE, INC
OWW
| $137K | 0.01% |
12,050
+6,757
| +128% | +$78.1K |
|
|
OMED
1015
DELISTED
OncoMed Pharmaceuticals, Inc.
OMED
| $137K | 0.01% |
+6,131
| New | +$151K |
|
|
AGEN
1016
CALL
Agenus
AGEN
$258M
| $136K | 0.01% |
+44
| New | +$6.24K |
|
1017
Helen of Troy
HELE
$625M
| $136K | 0.01% |
1,398
+1,366
| +4,269% | +$120K |
|
|
EXPR
1018
DELISTED
Express, Inc.
EXPR
| $136K | 0.01% |
+378
| New | +$132K |
|
|
CRR
1019
PUT
DELISTED
Carbo Ceramics Inc.
CRR
| $136K | 0.01% |
260
+171
| +192% | +$6.89K |
|
1020
CALL
TechnipFMC
FTI
$30.3B
| $135K | 0.01% |
317
+164
| +107% | +$5.04K |
|
1021
Moody's
MCO
$82.5B
| $135K | 0.01% |
1,251
-4,300
| -77% | -$463K |
|
1022
Comscore
SCOR
$110M
| $135K | 0.01% |
127
+112
| +747% | +$121K |
|
1023
United Parks & Resorts
PRKS
$2.08B
| $135K | 0.01% |
7,344
+3,377
| +85% | +$70K |
|
|
SPLK
1024
PUT
DELISTED
Splunk Inc
SPLK
| $135K | 0.01% |
398
+98
| +33% | +$6.59K |
|
|
AVP
1025
PUT
DELISTED
Avon Products, Inc.
AVP
| $135K | 0.01% |
196
+138
| +238% | +$1.02K |
|
Similar funds
Simplex Trading's Q2 2015 Portfolio in Review
As of Q2 2015, Simplex Trading held 6,639 positions worth $1.19B, up 39% from $860M the previous quarter. Its ten largest holdings account for 20% of the portfolio.
Simplex Trading deployed $279M of net new capital in Q2 2015, opening 1,607 new positions and adding to 1,829 existing holdings. Its largest new stake was IBM: 85,948 shares worth $13.4M.
By sector, the portfolio is most concentrated in Communication Services at 14% of assets, up from 7.8% a quarter earlier, followed by Technology and Healthcare.
On the sell side, the largest reduction was Intel, an estimated $5.04M trimmed.
- Simplex Trading's largest Q2 2015 buy was IBM: 85,948 shares worth $13.4M.
- Simplex Trading added most to Alphabet (Google) Class C in Q2 2015, an estimated $54.6M increase.
- Simplex Trading's biggest Q2 2015 reduction was Intel, cutting an estimated $5.04M.
- Simplex Trading fully exited State Street SPDR S&P 500 ETF Trust in Q2 2015, selling an estimated $10.1M.
- Simplex Trading's ten largest holdings make up 20% of its $1.19B portfolio in Q2 2015.
- Simplex Trading opened 1,607 new positions and closed 1,438 in Q2 2015.
- Simplex Trading's portfolio value rose 39% quarter-over-quarter to $1.19B.
Based on Simplex Trading's 13F filing for Q2 2015, filed 8 Jul 2015.