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 | |
|---|---|---|---|---|---|---|
|
SCIU
1151
CALL
DELISTED
Global X Scientific Beta US ETF
SCIU
| $2.38M | ﹤0.01% |
1,039
+579
| +126% | +$19.1K |
|
1152
CALL
Realty Income
O
$60.4B
| $2.38M | ﹤0.01% |
492
+59
| +14% | +$4.11K |
|
1153
CALL
Omega Healthcare
OHI
$15.2B
| $2.36M | ﹤0.01% |
891
+636
| +249% | +$24.1K |
|
|
CYBR
1154
CALL
DELISTED
CyberArk
CYBR
| $2.36M | ﹤0.01% |
276
-163
| -37% | -$18.8K |
|
1155
CALL
MGM Resorts International
MGM
$11.5B
| $2.36M | ﹤0.01% |
2,000
+678
| +51% | +$17.4K |
|
|
TCO
1156
DELISTED
Taubman Centers Inc.
TCO
| $2.36M | ﹤0.01% |
56,368
+46,301
| +460% | +$1.93M |
|
|
LHCG
1157
CALL
DELISTED
LHC Group LLC
LHCG
| $2.35M | ﹤0.01% |
168
-115
| -41% | -$16K |
|
|
KSU
1158
CALL
DELISTED
Kansas City Southern
KSU
| $2.35M | ﹤0.01% |
185
-29
| -14% | -$4.42K |
|
1159
PUT
Regions Financial
RF
$26.2B
| $2.35M | ﹤0.01% |
2,621
-43
| -2% | -$602 |
|
1160
CALL
Labcorp
LH
$23.9B
| $2.35M | ﹤0.01% |
217
-20
| -8% | -$2.88K |
|
|
BIG
1161
CALL
DELISTED
Big Lots, Inc.
BIG
| $2.35M | ﹤0.01% |
1,653
+1,156
| +233% | +$26.2K |
|
|
TECD
1162
CALL
DELISTED
Tech Data Corp
TECD
| $2.34M | ﹤0.01% |
179
+138
| +337% | +$19.1K |
|
1163
PUT
Lear
LEA
$7.14B
| $2.34M | ﹤0.01% |
288
+175
| +155% | +$20.2K |
|
|
AMRN
1164
Amarin Corp
AMRN
$285M
| $2.34M | ﹤0.01% |
29,220
+27,871
| +2,066% | +$9.26M |
|
1165
SAP
SAP
$171B
| $2.34M | ﹤0.01% |
21,143
+12,306
| +139% | +$1.55M |
|
1166
Darden Restaurants
DRI
$22.2B
| $2.33M | ﹤0.01% |
+42,693
| New | +$4.15M |
|
1167
Royal Gold
RGLD
$16.9B
| $2.32M | ﹤0.01% |
+26,504
| New | +$2.74M |
|
|
XLNX
1168
DELISTED
Xilinx Inc
XLNX
| $2.32M | ﹤0.01% |
29,742
+19,331
| +186% | +$1.68M |
|
1169
PUT
HubSpot
HUBS
$9.73B
| $2.32M | ﹤0.01% |
174
-187
| -52% | -$31.1K |
|
1170
CALL
British American Tobacco
BTI
$129B
| $2.31M | ﹤0.01% |
677
+519
| +328% | +$21.2K |
|
1171
CALL
Karyopharm Therapeutics
KPTI
$161M
| $2.31M | ﹤0.01% |
80
+33
| +70% | +$9.1K |
|
1172
CALL
Agnico Eagle Mines
AEM
$72.3B
| $2.31M | ﹤0.01% |
581
-367
| -39% | -$19.3K |
|
1173
PUT
Emerson Electric
EMR
$81.2B
| $2.31M | ﹤0.01% |
485
-169
| -26% | -$11.1K |
|
1174
CALL
Best Buy
BBY
$17.8B
| $2.31M | ﹤0.01% |
405
-126
| -24% | -$9.99K |
|
1175
Ferrari
RACE
$63.2B
| $2.31M | ﹤0.01% |
15,129
+3,392
| +29% | +$547K |
|
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.