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 |
Apple
AAPL
|
+$286M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$82.3M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$72.6M |
| 4 |
Alphabet (Google) Class C
GOOG
|
+$64.2M |
| 5 |
Intel
INTC
|
+$52.9M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$51.5M |
| 2 |
iShares Silver Trust
SLV
|
+$41.8M |
| 3 |
Ford
F
|
+$26.3M |
| 4 |
United Airlines
UAL
|
+$22.7M |
| 5 |
ExxonMobil
XOM
|
+$22.3M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.84% |
| 2 | Communication Services | 0.32% |
| 3 | Consumer Discretionary | 0.32% |
| 4 | Financials | 0.28% |
| 5 | Healthcare | 0.2% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
5126
PUT
EPR Properties
EPR
$4.76B
| $136K | ﹤0.01% |
2,900
-24,000
| -89% | -$1.22M |
|
5127
CALL
Fulcrum Therapeutics
FULC
$273M
| $136K | ﹤0.01% |
27,800
+24,600
| +769% | +$240K |
|
5128
PUT
Globe Life
GL
$14.2B
| $136K | ﹤0.01% |
1,400
-500
| -26% | -$49K |
|
5129
PUT
Grocery Outlet
GO
$909M
| $136K | ﹤0.01% |
3,200
+2,800
| +700% | +$102K |
|
5130
PUT
Neurocrine Biosciences
NBIX
$16.8B
| $136K | ﹤0.01% |
1,400
-43,000
| -97% | -$3.97M |
|
5131
PUT
PureCycle Technologies
PCT
$1.28B
| $136K | ﹤0.01% |
18,400
+11,800
| +179% | +$98.8K |
|
5132
Invesco S&P SmallCap Energy ETF
PSCE
$98.6M
| $136K | ﹤0.01% |
3,142
-7,554
| -71% | -$388K |
|
5133
PUT
RadNet
RDNT
$5.02B
| $136K | ﹤0.01% |
7,900
-1,000
| -11% | -$19.5K |
|
5134
Rocket Lab Corp
RKLB
$40.6B
| $136K | ﹤0.01% |
36,097
-117,460
| -76% | -$691K |
|
5135
Shoals Technologies Group
SHLS
$1.47B
| $136K | ﹤0.01% |
+8,278
| New | +$122K |
|
5136
CALL
Smart Sand
SND
$185M
| $136K | ﹤0.01% |
68,400
+17,700
| +35% | +$61.2K |
|
|
SWTX
5137
DELISTED
SpringWorks Therapeutics
SWTX
| $136K | ﹤0.01% |
+5,531
| New | +$202K |
|
5138
CALL
Toro Company
TTC
$8.75B
| $136K | ﹤0.01% |
1,800
+1,000
| +125% | +$81.2K |
|
5139
ProShares UltraPro Russell2000
URTY
$322M
| $136K | ﹤0.01% |
3,480
-2,939
| -46% | -$157K |
|
|
TPTX
5140
DELISTED
Turning Point Therapeutics, Inc. Common Stock
TPTX
| $136K | ﹤0.01% |
1,818
+569
| +46% | +$25.3K |
|
|
JJC
5141
DELISTED
iPath Series B Bloomberg Copper Subindex Total ReturnSM ETN
JJC
| $136K | ﹤0.01% |
7,383
+613
| +9% | +$13.3K |
|
5142
CALL
Aclaris Therapeutics
ACRS
$726M
| $135K | ﹤0.01% |
9,700
-8,900
| -48% | -$125K |
|
5143
CALL
CareDx
CDNA
$2.26B
| $135K | ﹤0.01% |
6,300
+6,000
| +2,000% | +$166K |
|
5144
CALL
CMS Energy
CMS
$22.6B
| $135K | ﹤0.01% |
2,000
-2,500
| -56% | -$173K |
|
|
VISN
5145
PUT
Vistance Networks Inc
VISN
$2.65B
| $135K | ﹤0.01% |
22,100
-51,700
| -70% | -$361K |
|
|
DENN
5146
DELISTED
Denny's
DENN
| $135K | ﹤0.01% |
+15,629
| New | +$172K |
|
5147
PUT
Equitable Holdings
EQH
$13B
| $135K | ﹤0.01% |
5,200
+600
| +13% | +$17.4K |
|
5148
Kodiak Sciences
KOD
$2.6B
| $135K | ﹤0.01% |
17,748
+10,915
| +160% | +$76.7K |
|
5149
nLIGHT
LASR
$3.88B
| $135K | ﹤0.01% |
13,228
+10,402
| +368% | +$134K |
|
5150
PUT
Pacer Trendpilot US Large Cap ETF
PTLC
$3.26B
| $135K | ﹤0.01% |
5,200
-600
| -10% | -$22.6K |
|
Similar funds
Simplex Trading's Q2 2022 Portfolio in Review
As of Q2 2022, Simplex Trading held 11,810 positions worth $94.1B, down 14% from $109B the previous quarter. Its ten largest holdings account for 40% of the portfolio.
Simplex Trading deployed $11.3B of net new capital in Q2 2022, opening 1,405 new positions and adding to 4,027 existing holdings. Its largest new stake was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
By sector, the portfolio is most concentrated in Technology at 0.84% of assets, up from 0.67% a quarter earlier, followed by Communication Services and Consumer Discretionary.
On the sell side, the largest reduction was United Airlines, an estimated $22.7M trimmed.
- Simplex Trading's largest Q2 2022 buy was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
- Simplex Trading added most to Apple in Q2 2022, an estimated $286M increase.
- Simplex Trading's biggest Q2 2022 reduction was United Airlines, cutting an estimated $22.7M.
- Simplex Trading fully exited State Street SPDR S&P 500 ETF Trust in Q2 2022, selling an estimated $51.5M.
- Simplex Trading's ten largest holdings make up 40% of its $94.1B portfolio in Q2 2022.
- Simplex Trading opened 1,405 new positions and closed 1,792 in Q2 2022.
- Simplex Trading's portfolio value fell 14% quarter-over-quarter to $94.1B.
Based on Simplex Trading's 13F filing for Q2 2022, filed 3 Aug 2022.