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 | |
|---|---|---|---|---|---|---|
1576
CALL
Box
BOX
$4.02B
| $1.4M | ﹤0.01% |
995
+591
| +146% | +$8.79K |
|
1577
PUT
Bunge Global
BG
$23.6B
| $1.4M | ﹤0.01% |
340
-71
| -17% | -$3.47K |
|
1578
CALL
State Street
STT
$50.9B
| $1.4M | ﹤0.01% |
262
-109
| -29% | -$7.57K |
|
|
WW
1579
CALL
DELISTED
WW International
WW
| $1.4M | ﹤0.01% |
825
-682
| -45% | -$21.2K |
|
1580
PUT
Ameriprise Financial
AMP
$46.8B
| $1.39M | ﹤0.01% |
136
-334
| -71% | -$49.5K |
|
1581
CALL
Invesco CurrencyShares Japanese Yen Trust
FXY
$423M
| $1.39M | ﹤0.01% |
158
-433
| -73% | -$37.7K |
|
1582
PUT
Nutanix
NTNX
$14.9B
| $1.39M | ﹤0.01% |
882
-243
| -22% | -$6.83K |
|
1583
CALL
JB Hunt Transport Services
JBHT
$27.1B
| $1.39M | ﹤0.01% |
151
+123
| +439% | +$12.8K |
|
1584
PUT
Pultegroup
PHM
$24.5B
| $1.39M | ﹤0.01% |
624
-369
| -37% | -$14.3K |
|
1585
PUT
Exelixis
EXEL
$13.9B
| $1.39M | ﹤0.01% |
808
-30
| -4% | -$549 |
|
|
ICPT
1586
CALL
DELISTED
Intercept Pharmaceuticals, Inc.
ICPT
| $1.39M | ﹤0.01% |
221
-232
| -51% | -$20.8K |
|
1587
CALL
Quaker Houghton
KWR
$2.63B
| $1.39M | ﹤0.01% |
110
+107
| +3,567% | +$17.4K |
|
1588
CALL
Tencent Music
TME
$14.5B
| $1.39M | ﹤0.01% |
1,381
-1,186
| -46% | -$14.6K |
|
1589
PUT
Baker Hughes
BKR
$56.8B
| $1.39M | ﹤0.01% |
1,321
+586
| +80% | +$11K |
|
1590
PUT
International Paper
IP
$22.3B
| $1.38M | ﹤0.01% |
469
+5
| +1% | +$186 |
|
1591
CALL
IDEX
IEX
$16.5B
| $1.38M | ﹤0.01% |
100
+18
| +22% | +$2.82K |
|
1592
CALL
NewMarket
NEU
$7.17B
| $1.38M | ﹤0.01% |
+36
| New | +$15.2K |
|
|
RDFN
1593
PUT
DELISTED
Redfin
RDFN
| $1.38M | ﹤0.01% |
894
+642
| +255% | +$15K |
|
1594
CALL
Welltower
WELL
$178B
| $1.38M | ﹤0.01% |
301
+162
| +117% | +$12K |
|
1595
iShares MSCI Hong Kong ETF
EWH
$1.22B
| $1.38M | ﹤0.01% |
69,029
+31,771
| +85% | +$725K |
|
1596
PUT
Vanguard Dividend Appreciation ETF
VIG
$111B
| $1.38M | ﹤0.01% |
133
-761
| -85% | -$90.8K |
|
|
BERY
1597
CALL
DELISTED
Berry Global Group, Inc.
BERY
| $1.38M | ﹤0.01% |
444
-176
| -28% | -$6.45K |
|
1598
CALL
Henry Schein
HSIC
$9.74B
| $1.37M | ﹤0.01% |
272
+219
| +413% | +$13.9K |
|
|
LOGM
1599
CALL
DELISTED
LogMein, Inc.
LOGM
| $1.37M | ﹤0.01% |
165
-215
| -57% | -$18.1K |
|
1600
PUT
Caesars Entertainment
CZR
$6.1B
| $1.37M | ﹤0.01% |
954
+307
| +47% | +$14.4K |
|
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.