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 | |
|---|---|---|---|---|---|---|
|
ESV
551
PUT
DELISTED
Ensco Rowan plc
ESV
| $467K | 0.03% |
526
+346
| +192% | +$14.4K |
|
552
Genesis Energy
GEL
$1.83B
| $465K | 0.03% |
12,140
+4,562
| +60% | +$160K |
|
553
Golar LNG
GLNG
$5.06B
| $464K | 0.03% |
29,989
-4,300
| -13% | -$76.5K |
|
554
Molson Coors Class B
TAP
$7.7B
| $464K | 0.03% |
4,594
+2,015
| +78% | +$198K |
|
|
NE
555
DELISTED
Noble Corporation
NE
| $464K | 0.03% |
56,426
+35,511
| +170% | +$339K |
|
556
CALL
Tyson Foods
TSN
$20.1B
| $460K | 0.03% |
1,092
+85
| +8% | +$5.51K |
|
557
PUT
Perrigo
PRGO
$1.45B
| $459K | 0.03% |
266
+32
| +14% | +$3.31K |
|
558
PUT
Humana
HUM
$47.7B
| $457K | 0.03% |
1,874
+1,750
| +1,411% | +$311K |
|
|
559
CALL
Humana
HUM
$47.7B
| $455K | 0.03% |
480
+363
| +310% | +$64.5K |
|
|
FDC
560
DELISTED
First Data Corporation
FDC
| $455K | 0.03% |
+41,174
| New | +$494K |
|
561
CALL
Enterprise Products Partners
EPD
$84.1B
| $454K | 0.03% |
2,572
-1,558
| -38% | -$41.8K |
|
562
CALL
Starbucks
SBUX
$119B
| $454K | 0.03% |
2,151
-186
| -8% | -$10.6K |
|
|
HIMX
563
Himax Technologies
HIMX
$2.38B
| $453K | 0.03% |
54,949
+33,910
| +161% | +$335K |
|
564
Lennar Class A
LEN
$19.8B
| $453K | 0.03% |
+10,340
| New | +$452K |
|
565
CALL
Monster Beverage
MNST
$93.6B
| $452K | 0.03% |
1,542
-390
| -20% | -$9.41K |
|
|
INFN
566
DELISTED
Infinera Corporation Common Stock
INFN
| $452K | 0.03% |
40,125
+15,305
| +62% | +$200K |
|
|
PF
567
DELISTED
Pinnacle Foods, Inc.
PF
| $452K | 0.03% |
9,776
-7,103
| -42% | -$309K |
|
|
XYZ
568
Block Inc
XYZ
$46.1B
| $451K | 0.03% |
+49,866
| New | +$564K |
|
569
CALL
Mastercard
MA
$470B
| $447K | 0.03% |
2,439
+153
| +7% | +$14.6K |
|
570
Citizens Financial Group
CFG
$30.6B
| $445K | 0.03% |
+22,281
| New | +$495K |
|
571
Kroger
KR
$35.3B
| $445K | 0.03% |
12,114
-1,339
| -10% | -$48.2K |
|
572
Red Robin
RRGB
$131M
| $445K | 0.03% |
9,396
+8,993
| +2,232% | +$519K |
|
573
CALL
Union Pacific
UNP
$174B
| $445K | 0.03% |
1,966
+633
| +47% | +$53.5K |
|
574
CALL
Eli Lilly
LLY
$1.04T
| $444K | 0.03% |
2,154
+164
| +8% | +$12.3K |
|
575
CALL
Paychex
PAYX
$39.4B
| $443K | 0.03% |
1,088
+822
| +309% | +$44K |
|
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.