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 | |
|---|---|---|---|---|---|---|
4901
CALL
Black Hills Corp
BKH
$5.42B
| $160K | ﹤0.01% |
2,200
+1,700
| +340% | +$128K |
|
4902
CALL
BlackSky Technology
BKSY
$943M
| $160K | ﹤0.01% |
8,688
-3,150
| -27% | -$48.1K |
|
4903
PUT
Crescent Energy
CRGY
$3.79B
| $160K | ﹤0.01% |
12,900
-13,500
| -51% | -$225K |
|
4904
CALL
Lincoln Electric
LECO
$14.3B
| $160K | ﹤0.01% |
+1,300
| New | +$171K |
|
4905
CALL
National Healthcare
NHC
$3.53B
| $160K | ﹤0.01% |
2,300
+100
| +5% | +$7K |
|
|
NSA
4906
CALL
DELISTED
National Storage Affiliates Trust
NSA
| $160K | ﹤0.01% |
3,200
-1,400
| -30% | -$76.2K |
|
4907
PUT
TriplePoint Venture Growth BDC
TPVG
$184M
| $160K | ﹤0.01% |
12,600
+7,200
| +133% | +$109K |
|
4908
CALL
Herbalife
HLF
$1.29B
| $159K | ﹤0.01% |
7,800
+1,000
| +15% | +$24.7K |
|
4909
PUT
MDU Resources
MDU
$4.17B
| $159K | ﹤0.01% |
15,516
+6,574
| +74% | +$66.8K |
|
4910
CALL
Myriad Genetics
MYGN
$270M
| $159K | ﹤0.01% |
8,800
+5,300
| +151% | +$110K |
|
4911
The RealReal
REAL
$1.46B
| $159K | ﹤0.01% |
64,074
+32,601
| +104% | +$145K |
|
|
AQUA
4912
PUT
DELISTED
Evoqua Water Technologies Corp. Common Stock
AQUA
| $159K | ﹤0.01% |
4,900
-5,600
| -53% | -$213K |
|
4913
PUT
Avantor
AVTR
$9.32B
| $158K | ﹤0.01% |
5,100
-11,200
| -69% | -$350K |
|
4914
CALL
Covenant Logistics
CVLG
$894M
| $158K | ﹤0.01% |
12,600
+9,600
| +320% | +$103K |
|
|
EVRI
4915
CALL
DELISTED
Everi Holdings
EVRI
| $158K | ﹤0.01% |
9,700
-51,700
| -84% | -$910K |
|
4916
PUT
WillScot Mobile Mini Holdings
WSC
$4.39B
| $158K | ﹤0.01% |
4,900
-5,800
| -54% | -$205K |
|
|
PRVB
4917
CALL
DELISTED
Provention Bio, Inc. Common Stock
PRVB
| $158K | ﹤0.01% |
39,500
-27,600
| -41% | -$131K |
|
4918
Alnylam Pharmaceuticals
ALNY
$27.5B
| $157K | ﹤0.01% |
+1,077
| New | +$153K |
|
4919
Anterix
ATEX
$1.81B
| $157K | ﹤0.01% |
3,823
-5,696
| -60% | -$277K |
|
4920
PUT
Autohome
ATHM
$2.67B
| $157K | ﹤0.01% |
4,000
-6,300
| -61% | -$196K |
|
|
CLDT
4921
CALL
Chatham Lodging
CLDT
$622M
| $157K | ﹤0.01% |
15,100
-6,000
| -28% | -$75.5K |
|
4922
CALL
HEICO Corp Class A
HEI.A
$36B
| $157K | ﹤0.01% |
1,200
-2,900
| -71% | -$334K |
|
4923
PUT
Kodak
KODK
$822M
| $157K | ﹤0.01% |
34,000
-88,600
| -72% | -$462K |
|
4924
PUT
MannKind Corp
MNKD
$1.21B
| $157K | ﹤0.01% |
41,400
-7,300
| -15% | -$26.8K |
|
4925
PUT
MSC Industrial Direct
MSM
$6.89B
| $157K | ﹤0.01% |
2,100
+2,000
| +2,000% | +$164K |
|
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.