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 | |
|---|---|---|---|---|---|---|
|
PPL
3476
PUT
PPL Corp
PPL
$27.2B
| $482K | ﹤0.01% |
17,800
+2,700
| +18% | +$77.5K |
|
|
NXDR
3477
Nextdoor Holdings
NXDR
$889M
| $481K | ﹤0.01% |
145,332
+52,624
| +57% | +$207K |
|
3478
Trex
TREX
$4.41B
| $481K | ﹤0.01% |
8,855
+2,770
| +46% | +$167K |
|
3479
Vroom Inc
VRM
$37.5M
| $481K | ﹤0.01% |
4,813
-1,814
| -27% | -$228K |
|
|
NETI
3480
CALL
DELISTED
Eneti Inc.
NETI
| $481K | ﹤0.01% |
78,500
+46,500
| +145% | +$298K |
|
|
FATH
3481
CALL
DELISTED
Fathom Digital Manufacturing Corporation
FATH
| $481K | ﹤0.01% |
6,200
+220
| +4% | +$25K |
|
|
CODX
3482
PUT
Co-Diagnostics
CODX
$5.64M
| $480K | ﹤0.01% |
2,853
-250
| -8% | -$38K |
|
3483
PUT
Procept Biorobotics
PRCT
$1.02B
| $480K | ﹤0.01% |
+14,700
| New | +$535K |
|
|
KEEL
3484
CALL
Keel Infrastructure Corp
KEEL
$2.03B
| $479K | ﹤0.01% |
427,900
-145,600
| -25% | -$330K |
|
3485
CALL
Wyndham Hotels & Resorts
WH
$5.56B
| $479K | ﹤0.01% |
7,300
-2,700
| -27% | -$213K |
|
|
SVC
3486
CALL
Service Properties Trust
SVC
$1.07B
| $478K | ﹤0.01% |
18,280
+12,380
| +210% | +$427K |
|
|
RFP
3487
CALL
DELISTED
Resolute Forest Products Inc.
RFP
| $478K | ﹤0.01% |
37,500
-45,900
| -55% | -$634K |
|
3488
PUT
Cullen/Frost Bankers
CFR
$10.5B
| $477K | ﹤0.01% |
4,100
+2,700
| +193% | +$345K |
|
|
HEP
3489
PUT
DELISTED
Holly Energy Partners, L.P.
HEP
| $477K | ﹤0.01% |
29,800
| – | – |
|
3490
CALL
Kodak
KODK
$813M
| $476K | ﹤0.01% |
102,700
-55,200
| -35% | -$288K |
|
3491
Ramaco Resources Class A
METC
$633M
| $476K | ﹤0.01% |
37,440
+33,695
| +900% | +$507K |
|
3492
CALL
Intellia Therapeutics
NTLA
$1.51B
| $476K | ﹤0.01% |
9,200
-3,200
| -26% | -$162K |
|
3493
PUT
Owens Corning
OC
$11.1B
| $475K | ﹤0.01% |
6,400
+2,700
| +73% | +$238K |
|
|
SUP
3494
DELISTED
Superior Industries International
SUP
| $475K | ﹤0.01% |
120,278
+53,935
| +81% | +$212K |
|
|
LONA
3495
CALL
LeonaBio Inc
LONA
$67M
| $474K | ﹤0.01% |
15,550
+2,760
| +22% | +$253K |
|
3496
CALL
Rocket Lab Corp
RKLB
$38B
| $474K | ﹤0.01% |
125,300
+23,200
| +23% | +$137K |
|
|
TRVG
3497
PUT
trivago
TRVG
$387M
| $474K | ﹤0.01% |
63,680
-1,320
| -2% | -$12.3K |
|
3498
PUT
Entergy
ETR
$51B
| $473K | ﹤0.01% |
8,400
+7,800
| +1,300% | +$459K |
|
3499
PUT
Haverty Furniture Companies
HVT
$418M
| $472K | ﹤0.01% |
20,400
+10,500
| +106% | +$280K |
|
|
DCT
3500
PUT
DELISTED
Duck Creek Technologies, Inc. Common Stock
DCT
| $472K | ﹤0.01% |
31,800
+300
| +1% | +$5.27K |
|
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.