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 | |
|---|---|---|---|---|---|---|
7526
CPS Technologies
CPSH
$77.3M
| $21K | ﹤0.01% |
6,892
-24,667
| -78% | -$91.6K |
|
7527
VanEck Oil Refiners ETF
CRAK
$215M
| $21K | ﹤0.01% |
+714
| New | +$22.4K |
|
7528
CALL
Dynagas LNG Partners
DLNG
$134M
| $21K | ﹤0.01% |
6,400
-2,000
| -24% | -$7.21K |
|
7529
PUT
Dorman Products
DORM
$3.98B
| $21K | ﹤0.01% |
+200
| New | +$19.8K |
|
7530
CALL
Excelerate Energy
EE
$1.22B
| $21K | ﹤0.01% |
+1,100
| New | +$27.9K |
|
7531
ProShares Trust UltraShort MSCI Japan
EWV
$5.61M
| $21K | ﹤0.01% |
271
-3
| -1% | -$211 |
|
|
COLO
7532
Global X MSCI Colombia ETF
COLO
$204M
| $21K | ﹤0.01% |
852
+259
| +44% | +$8.18K |
|
7533
PUT
Health Catalyst
HCAT
$154M
| $21K | ﹤0.01% |
1,500
-8,000
| -84% | -$136K |
|
7534
Heritage Insurance Holdings
HRTG
$907M
| $21K | ﹤0.01% |
8,009
+7,928
| +9,788% | +$33.8K |
|
7535
PUT
Hydrofarm Holdings
HYFM
$2.82M
| $21K | ﹤0.01% |
610
-1,240
| -67% | -$101K |
|
7536
CALL
Korea Electric Power
KEP
$15.5B
| $21K | ﹤0.01% |
2,500
-2,300
| -48% | -$20.4K |
|
7537
PUT
Katapult Holdings
KPLT
$30.2M
| $21K | ﹤0.01% |
816
-1,264
| -61% | -$50K |
|
7538
CALL
Dorian LPG
LPG
$1.98B
| $21K | ﹤0.01% |
1,400
-300
| -18% | -$4.75K |
|
7539
PUT
Mueller Industries
MLI
$14.8B
| $21K | ﹤0.01% |
1,600
-2,000
| -56% | -$27.1K |
|
7540
PUT
LHA Market State Tactical Beta ETF
MSTB
$193M
| $21K | ﹤0.01% |
11,100
+10,500
| +1,750% | +$288K |
|
7541
MGIC Investment
MTG
$6.44B
| $21K | ﹤0.01% |
1,681
-486
| -22% | -$6.39K |
|
7542
Nexa Resources
NEXA
$1.74B
| $21K | ﹤0.01% |
3,553
+2,600
| +273% | +$22.1K |
|
7543
CALL
Northwest Natural Holdings
NWN
$2.11B
| $21K | ﹤0.01% |
400
+100
| +33% | +$5.16K |
|
7544
Pebblebrook Hotel Trust
PEB
$2.12B
| $21K | ﹤0.01% |
+1,323
| New | +$29.2K |
|
7545
PUT
Precigen
PGEN
$2.12B
| $21K | ﹤0.01% |
16,200
+1,700
| +12% | +$2.52K |
|
|
PGRE
7546
DELISTED
Paramount Group
PGRE
| $21K | ﹤0.01% |
+2,980
| New | +$27K |
|
7547
CALL
Pricesmart
PSMT
$5.94B
| $21K | ﹤0.01% |
300
-200
| -40% | -$15.5K |
|
7548
PUT
Rekor Systems
REKR
$84.6M
| $21K | ﹤0.01% |
12,400
-15,000
| -55% | -$42.8K |
|
7549
CALL
RELX
RELX
$63.9B
| $21K | ﹤0.01% |
+800
| New | +$23K |
|
7550
CALL
Scholastic
SCHL
$789M
| $21K | ﹤0.01% |
600
-800
| -57% | -$29.5K |
|
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.