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 |
SPDR Gold Trust
GLD
|
+$31.6M |
| 2 |
iShares Silver Trust
SLV
|
+$28.1M |
| 3 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$25.1M |
| 4 |
JPMorgan Chase
JPM
|
+$24.5M |
| 5 |
Direxion Daily Junior Gold Miners Index Bull 2X ETF
JNUG
|
+$24M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Alphabet (Google) Class C
GOOG
|
+$51.6M |
| 2 |
Amazon
AMZN
|
+$47.4M |
| 3 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$44.7M |
| 4 |
Netflix
NFLX
|
+$38.3M |
| 5 |
NVIDIA
NVDA
|
+$31.1M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.49% |
| 2 | Healthcare | 0.33% |
| 3 | Consumer Discretionary | 0.32% |
| 4 | Financials | 0.16% |
| 5 | Communication Services | 0.16% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
3251
CALL
US Foods
USFD
$21.8B
| $270K | ﹤0.01% |
153
-578
| -79% | -$19.4K |
|
|
ONC
3252
PUT
BeOne Medicines Ltd
ONC
$33.9B
| $270K | ﹤0.01% |
22
-79
| -78% | -$12.4K |
|
3253
CALL
VanEck Durable High Dividend ETF
DURA
$38.8M
| $268K | ﹤0.01% |
94
+34
| +57% | +$937 |
|
3254
CALL
Glacier Bancorp
GBCI
$6.42B
| $268K | ﹤0.01% |
79
-101
| -56% | -$4.03K |
|
3255
CALL
Copa Holdings
CPA
$5.61B
| $267K | ﹤0.01% |
59
-32
| -35% | -$2.74K |
|
3256
CALL
i3 Verticals
IIIV
$408M
| $267K | ﹤0.01% |
140
+108
| +338% | +$3.04K |
|
3257
CALL
Terex
TEX
$7.78B
| $267K | ﹤0.01% |
186
+135
| +265% | +$3.06K |
|
|
PACW
3258
CALL
DELISTED
PacWest Bancorp
PACW
| $267K | ﹤0.01% |
149
-82
| -35% | -$2.57K |
|
3259
CALL
American Financial Group
AFG
$11.9B
| $266K | ﹤0.01% |
38
+7
| +23% | +$676 |
|
3260
CALL
Amkor Technology
AMKR
$14.8B
| $266K | ﹤0.01% |
342
+248
| +264% | +$2.69K |
|
3261
PUT
Moelis & Co
MC
$5.02B
| $266K | ﹤0.01% |
95
+84
| +764% | +$2.75K |
|
3262
ProShares Ultra Financials
UYG
$823M
| $266K | ﹤0.01% |
11,215
-3,667
| -25% | -$166K |
|
3263
Kennametal
KMT
$2.67B
| $265K | ﹤0.01% |
+14,273
| New | +$407K |
|
3264
CALL
Macerich
MAC
$7.37B
| $265K | ﹤0.01% |
471
+371
| +371% | +$7.38K |
|
3265
PUT
Aon
AON
$78.6B
| $264K | ﹤0.01% |
16
-215
| -93% | -$44K |
|
3266
iShares MSCI Spain ETF
EWP
$2.08B
| $264K | ﹤0.01% |
13,031
-5,310
| -29% | -$138K |
|
3267
CALL
RCI Hospitality Holdings
RICK
$202M
| $264K | ﹤0.01% |
265
-36
| -12% | -$641 |
|
3268
CALL
Invesco DB Base Metals Fund
DBB
$308M
| $263K | ﹤0.01% |
234
+139
| +146% | +$1.94K |
|
3269
CALL
Iridium Communications
IRDM
$4.83B
| $263K | ﹤0.01% |
118
+11
| +10% | +$285 |
|
3270
PVH
PVH
$3.82B
| $263K | ﹤0.01% |
7,010
-4,277
| -38% | -$327K |
|
|
MNK
3271
DELISTED
MALLINCKRODT PUBLIC LIMITED COMPANY
MNK
| $263K | ﹤0.01% |
+133,203
| New | +$505K |
|
|
KEM
3272
PUT
DELISTED
KEMET Corporation
KEM
| $263K | ﹤0.01% |
109
-98
| -47% | -$2.49K |
|
3273
CALL
United States Brent Oil Fund
BNO
$761M
| $262K | ﹤0.01% |
333
+332
| +33,200% | +$5.38K |
|
3274
CALL
TechnipFMC
FTI
$30B
| $262K | ﹤0.01% |
523
+390
| +293% | +$4.28K |
|
3275
PUT
IDEX
IEX
$16.4B
| $262K | ﹤0.01% |
19
+11
| +138% | +$1.73K |
|
Similar funds
Simplex Trading's Q1 2020 Portfolio in Review
As of Q1 2020, Simplex Trading held 8,783 positions worth $56.7B, up 24% from $45.7B the previous quarter. Its ten largest holdings account for 50% of the portfolio.
Simplex Trading's Q1 2020 filing shows 1,512 new, 3,249 increased, 2,705 reduced and 1,159 closed positions. Its largest new stake was SPDR Gold Trust: 212,230 shares worth $31.4M. The largest sale was Alphabet (Google) Class C, an estimated $51.6M.
By sector, the portfolio is most concentrated in Technology at 0.49% of assets, down from 0.75% a quarter earlier, followed by Healthcare and Consumer Discretionary.
- Simplex Trading's largest Q1 2020 buy was SPDR Gold Trust: 212,230 shares worth $31.4M.
- Simplex Trading added most to JPMorgan Chase in Q1 2020, an estimated $24.5M increase.
- Simplex Trading's biggest Q1 2020 reduction was Amazon, cutting an estimated $47.4M.
- Simplex Trading fully exited Alphabet (Google) Class C in Q1 2020, selling an estimated $51.6M.
- Simplex Trading's ten largest holdings make up 50% of its $56.7B portfolio in Q1 2020.
- Simplex Trading opened 1,512 new positions and closed 1,159 in Q1 2020.
- Simplex Trading's portfolio value rose 24% quarter-over-quarter to $56.7B.
Based on Simplex Trading's 13F filing for Q1 2020, filed 29 Apr 2020.