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 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$49.8M |
| 2 |
Apple
AAPL
|
+$24.5M |
| 3 |
Citigroup
C
|
+$23.5M |
| 4 |
Amazon
AMZN
|
+$22.7M |
| 5 |
Alphabet (Google) Class C
GOOG
|
+$18.5M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
LNKD
LinkedIn Corporation
LNKD
|
+$17.4M |
| 2 |
Wells Fargo
WFC
|
+$13.5M |
| 3 |
MDVN
MEDIVATION, INC.
MDVN
|
+$8.62M |
| 4 |
Goldman Sachs
GS
|
+$8.5M |
| 5 |
iShares iBoxx $ High Yield Corporate Bond ETF
HYG
|
+$8.15M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Communication Services | 8.76% |
| 2 | Technology | 7.19% |
| 3 | Healthcare | 6.91% |
| 4 | Consumer Discretionary | 6.53% |
| 5 | Financials | 5.37% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
126
PUT
SPDR Gold Trust
GLD
$134B
| $2.31M | 0.14% |
5,742
+620
| +12% | +$72K |
|
127
Blackstone
BX
$153B
| $2.28M | 0.14% |
84,521
-65,248
| -44% | -$1.69M |
|
128
Williams Companies
WMB
$90.5B
| $2.27M | 0.14% |
+73,040
| New | +$2.2M |
|
129
CVR Energy
CVI
$3.58B
| $2.26M | 0.14% |
89,113
+83,101
| +1,382% | +$1.44M |
|
130
PUT
NVIDIA
NVDA
$5.02T
| $2.19M | 0.13% |
636,560
+479,040
| +304% | +$1M |
|
131
ConocoPhillips
COP
$145B
| $2.18M | 0.13% |
43,426
+38,416
| +767% | +$1.77M |
|
|
AGN
132
PUT
DELISTED
Allergan plc
AGN
| $2.17M | 0.13% |
3,023
+567
| +23% | +$117K |
|
133
Synaptics
SYNA
$4.68B
| $2.12M | 0.13% |
39,510
+10,493
| +36% | +$607K |
|
|
AMJ
134
DELISTED
JP Morgan Alerian MLP Index ETN 5/24/24
AMJ
| $2.11M | 0.13% |
+66,708
| New | +$2.04M |
|
135
Eaton
ETN
$159B
| $2.1M | 0.13% |
+31,355
| New | +$2.06M |
|
|
PX
136
DELISTED
Praxair Inc
PX
| $2.1M | 0.13% |
17,953
+4,876
| +37% | +$580K |
|
|
ETP
137
DELISTED
Energy Transfer Partners L.p.
ETP
| $2.08M | 0.12% |
58,058
+34,871
| +150% | +$1.24M |
|
138
PUT
State Street SPDR NYSE Technology ETF
XNTK
$2.14B
| $2.08M | 0.12% |
19,218
+3,891
| +25% | +$234K |
|
139
CALL
Advanced Micro Devices
AMD
$900B
| $2.06M | 0.12% |
7,135
+4,361
| +157% | +$36.6K |
|
|
PPLC
140
CALL
DELISTED
PortfolioPlus S&P 500 ETF
PPLC
| $2.04M | 0.12% |
15,022
+1,198
| +9% | +$33.7K |
|
|
141
CALL
ConocoPhillips
COP
$145B
| $2.03M | 0.12% |
4,368
-168
| -4% | -$7.75K |
|
142
Western Digital
WDC
$192B
| $2.02M | 0.12% |
39,404
+17,344
| +79% | +$800K |
|
143
Capri Holdings
CPRI
$1.84B
| $1.98M | 0.12% |
+46,029
| New | +$2.19M |
|
144
British American Tobacco
BTI
$135B
| $1.97M | 0.12% |
+34,964
| New | +$1.98M |
|
145
Cheniere Energy
LNG
$55B
| $1.96M | 0.12% |
+47,393
| New | +$1.91M |
|
146
iShares Silver Trust
SLV
$29.3B
| $1.96M | 0.12% |
+129,743
| New | +$2.11M |
|
147
CALL
Morgan Stanley
MS
$345B
| $1.96M | 0.12% |
5,055
+3,816
| +308% | +$144K |
|
148
WisdomTree Europe Hedged Equity Fund
HEDJ
$1.84B
| $1.95M | 0.12% |
67,778
-2,028
| -3% | -$55.5K |
|
|
VXZ
149
CALL
DELISTED
iPath S&P 500 VIX Mid-Term Futures ETN due 1/30/2019
VXZ
| $1.92M | 0.11% |
13,233
-40
| -0.3% | -$1.43K |
|
150
Direxion Daily S&P 500 Bull 3x ETF
SPXL
$6.86B
| $1.91M | 0.11% |
70,756
-7,804
| -10% | -$195K |
|
Similar funds
Simplex Trading's Q4 2016 Portfolio in Review
As of Q4 2016, Simplex Trading held 7,301 positions worth $1.67B, up 13% from $1.48B the previous quarter. Its ten largest holdings account for 20% of the portfolio.
Simplex Trading deployed $181M of net new capital in Q4 2016, opening 1,543 new positions and adding to 2,137 existing holdings. Its largest new stake was State Street SPDR S&P 500 ETF Trust: 227,870 shares worth $50.9M.
By sector, the portfolio is most concentrated in Communication Services at 8.8% of assets, up from 8.4% a quarter earlier, followed by Technology and Healthcare.
On the sell side, the largest reduction was Goldman Sachs, an estimated $8.5M trimmed.
- Simplex Trading's largest Q4 2016 buy was State Street SPDR S&P 500 ETF Trust: 227,870 shares worth $50.9M.
- Simplex Trading added most to Apple in Q4 2016, an estimated $24.5M increase.
- Simplex Trading's biggest Q4 2016 reduction was Goldman Sachs, cutting an estimated $8.5M.
- Simplex Trading fully exited LinkedIn Corporation in Q4 2016, selling an estimated $17.4M.
- Simplex Trading's ten largest holdings make up 20% of its $1.67B portfolio in Q4 2016.
- Simplex Trading opened 1,543 new positions and closed 1,480 in Q4 2016.
- Simplex Trading's portfolio value rose 13% quarter-over-quarter to $1.67B.
Based on Simplex Trading's 13F filing for Q4 2016, filed 11 Jan 2017.