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 | |
|---|---|---|---|---|---|---|
3651
CALL
Splash Beverage Group
SBEV
$2.01M
| $423K | ﹤0.01% |
886
+420
| +90% | +$152K |
|
3652
CALL
Repligen
RGEN
$6.91B
| $422K | ﹤0.01% |
2,600
-6,900
| -73% | -$1.09M |
|
3653
PUT
Viasat
VSAT
$9.67B
| $422K | ﹤0.01% |
13,800
-18,500
| -57% | -$716K |
|
3654
PUT
WD-40
WDFC
$2.98B
| $422K | ﹤0.01% |
2,100
+1,700
| +425% | +$317K |
|
|
RETA
3655
DELISTED
Reata Pharmaceuticals, Inc. Class A Common Stock
RETA
| $422K | ﹤0.01% |
13,908
+858
| +7% | +$25.6K |
|
3656
Energy Fuels
UUUU
$2.68B
| $421K | ﹤0.01% |
85,917
-122,667
| -59% | -$868K |
|
3657
CALL
Adient
ADNT
$1.69B
| $420K | ﹤0.01% |
14,200
+7,600
| +115% | +$255K |
|
3658
ProShares UltraShort Bloomberg Natural Gas
KOLD
$119M
| $420K | ﹤0.01% |
20,992
+20,614
| +5,453% | +$328K |
|
3659
CALL
Agios Pharmaceuticals
AGIO
$2.08B
| $419K | ﹤0.01% |
18,900
+7,100
| +60% | +$160K |
|
|
CARM
3660
CALL
DELISTED
Carisma Therapeutics
CARM
| $419K | ﹤0.01% |
25,875
+3,055
| +13% | +$35K |
|
|
OBE
3661
Obsidian Energy
OBE
$656M
| $419K | ﹤0.01% |
+54,219
| New | +$480K |
|
3662
iShares MSCI Turkey ETF
TUR
$201M
| $419K | ﹤0.01% |
+22,064
| New | +$468K |
|
3663
PUT
Interactive Brokers
IBKR
$38.4B
| $418K | ﹤0.01% |
30,400
+3,600
| +13% | +$53.5K |
|
3664
CALL
Vivid Seats
SEAT
$81.6M
| $418K | ﹤0.01% |
2,800
+2,205
| +371% | +$399K |
|
3665
ZTO Express
ZTO
$18.2B
| $418K | ﹤0.01% |
+15,249
| New | +$391K |
|
|
RVNC
3666
CALL
DELISTED
Revance Therapeutics, Inc.
RVNC
| $418K | ﹤0.01% |
30,300
-35,700
| -54% | -$550K |
|
|
TE
3667
T1 Energy
TE
$1.04B
| $417K | ﹤0.01% |
61,060
-196,530
| -76% | -$1.72M |
|
|
MN
3668
PUT
DELISTED
MANNING & NAPIER, INC.
MN
| $417K | ﹤0.01% |
+33,500
| New | +$421K |
|
|
RBAC
3669
PUT
DELISTED
RedBall Acquisition Corp.
RBAC
| $417K | ﹤0.01% |
41,900
-63,700
| -60% | -$632K |
|
3670
CALL
Boise Cascade
BCC
$2.73B
| $416K | ﹤0.01% |
7,000
-3,200
| -31% | -$236K |
|
3671
Photronics
PLAB
$1.65B
| $416K | ﹤0.01% |
+21,404
| New | +$375K |
|
|
CLVS
3672
PUT
DELISTED
Clovis Oncology, Inc.
CLVS
| $416K | ﹤0.01% |
231,400
+159,700
| +223% | +$236K |
|
3673
CALL
Amplitude
AMPL
$1.18B
| $415K | ﹤0.01% |
29,100
+7,700
| +36% | +$135K |
|
3674
PUT
A.O. Smith
AOS
$8.55B
| $415K | ﹤0.01% |
7,600
+6,100
| +407% | +$366K |
|
3675
CALL
Graco
GGG
$13.2B
| $415K | ﹤0.01% |
7,000
+4,700
| +204% | +$295K |
|
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.