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 | |
|---|---|---|---|---|---|---|
7601
CALL
Immatics
IMTX
$1.26B
| $20K | ﹤0.01% |
+2,300
| New | +$18.2K |
|
|
HYFT
7602
PUT
MindWalk Holdings
HYFT
$63.1M
| $20K | ﹤0.01% |
5,300
-4,300
| -45% | -$21.7K |
|
|
KE
7603
PUT
Kimball Electronics
KE
$591M
| $20K | ﹤0.01% |
+1,000
| New | +$18.8K |
|
7604
CALL
Kodiak Sciences
KOD
$2.66B
| $20K | ﹤0.01% |
2,700
-27,200
| -91% | -$191K |
|
7605
PUT
Kilroy Realty
KRC
$4.6B
| $20K | ﹤0.01% |
400
-700
| -64% | -$44.4K |
|
7606
PUT
LifeMD
LFMD
$176M
| $20K | ﹤0.01% |
10,200
-8,200
| -45% | -$20.4K |
|
7607
Live Oak Bancshares
LOB
$1.97B
| $20K | ﹤0.01% |
+602
| New | +$24.9K |
|
7608
PUT
Stride
LRN
$3.53B
| $20K | ﹤0.01% |
500
-18,100
| -97% | -$670K |
|
7609
PUT
Metropolitan Bank Holding Corp
MCB
$1.15B
| $20K | ﹤0.01% |
300
| – | – |
|
7610
CALL
Nordson
NDSN
$16.4B
| $20K | ﹤0.01% |
100
-400
| -80% | -$85.3K |
|
|
7611
PUT
Nordson
NDSN
$16.4B
| $20K | ﹤0.01% |
100
-200
| -67% | -$42.7K |
|
7612
PUT
NovaGold Resources
NG
$2.66B
| $20K | ﹤0.01% |
4,300
+3,000
| +231% | +$18.7K |
|
7613
New Mountain Finance
NMFC
$653M
| $20K | ﹤0.01% |
+1,760
| New | +$22.7K |
|
7614
Option Care Health
OPCH
$3.36B
| $20K | ﹤0.01% |
+748
| New | +$21.3K |
|
7615
CALL
Pampa Energía
PAM
$4.77B
| $20K | ﹤0.01% |
1,000
-1,700
| -63% | -$37.6K |
|
7616
CALL
Paysign
PAYS
$512M
| $20K | ﹤0.01% |
13,600
+600
| +5% | +$993 |
|
7617
PUT
RCM Technologies
RCMT
$202M
| $20K | ﹤0.01% |
+1,000
| New | +$18.9K |
|
7618
PUT
SITE Centers
SITC
$227M
| $20K | ﹤0.01% |
1,923
-1,153
| -37% | -$13.6K |
|
7619
StepStone Group
STEP
$3.59B
| $20K | ﹤0.01% |
773
-1,285
| -62% | -$35K |
|
7620
SurgePays
SURG
$5.43M
| $20K | ﹤0.01% |
+4,284
| New | +$18.1K |
|
7621
PUT
Sypris Solutions
SYPR
$44.2M
| $20K | ﹤0.01% |
9,000
-32,400
| -78% | -$73.1K |
|
7622
TMC The Metals Company
TMC
$1.57B
| $20K | ﹤0.01% |
19,786
-173,240
| -90% | -$267K |
|
|
TPIC
7623
CALL
DELISTED
TPI Composites
TPIC
| $20K | ﹤0.01% |
1,600
-7,900
| -83% | -$104K |
|
7624
CALL
Telesat
TSAT
$570M
| $20K | ﹤0.01% |
1,800
+1,200
| +200% | +$16.9K |
|
|
VIVO
7625
CALL
VivoPower PLC
VIVO
$109M
| $20K | ﹤0.01% |
1,460
+720
| +97% | +$10.8K |
|
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.