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 | |
|---|---|---|---|---|---|---|
|
CHGX
6026
PUT
DELISTED
AXS Change Finance ESG ETF
CHGX
| $71K | ﹤0.01% |
+4,100
| New | +$117K |
|
|
INTZ
6027
PUT
DELISTED
INTRUSION INC NEW
INTZ
| $71K | ﹤0.01% |
18,300
+3,700
| +25% | +$14.4K |
|
6028
CALL
Acco Brands
ACCO
$399M
| $70K | ﹤0.01% |
10,800
-2,300
| -18% | -$16.8K |
|
6029
CALL
Alight
ALIT
$517M
| $70K | ﹤0.01% |
525
+330
| +169% | +$54.1K |
|
|
BRT
6030
BRT Apartments
BRT
$282M
| $70K | ﹤0.01% |
3,282
-10,490
| -76% | -$231K |
|
6031
PUT
ClearPoint Neuro
CLPT
$461M
| $70K | ﹤0.01% |
5,400
+1,100
| +26% | +$11.2K |
|
6032
Castor Maritime
CTRM
$20.1M
| $70K | ﹤0.01% |
5,269
+1,564
| +42% | +$28.9K |
|
6033
PUT
FTC Solar
FTCI
$45.6M
| $70K | ﹤0.01% |
1,950
-4,240
| -68% | -$168K |
|
6034
PUT
Hims & Hers Health
HIMS
$7.13B
| $70K | ﹤0.01% |
15,500
-20,200
| -57% | -$86.2K |
|
6035
CALL
Information Services Group
III
$205M
| $70K | ﹤0.01% |
10,400
-5,000
| -32% | -$31.5K |
|
6036
Ironwood Pharmaceuticals
IRWD
$728M
| $70K | ﹤0.01% |
6,079
+5,865
| +2,741% | +$69.1K |
|
6037
CALL
PolyPid
PYPD
$83.6M
| $70K | ﹤0.01% |
503
+53
| +12% | +$7.93K |
|
6038
PUT
Strategic Education
STRA
$1.89B
| $70K | ﹤0.01% |
1,000
+900
| +900% | +$59.7K |
|
|
SVM
6039
CALL
Silvercorp Metals
SVM
$2.11B
| $70K | ﹤0.01% |
28,400
-1,400
| -5% | -$4.23K |
|
|
TPH
6040
PUT
DELISTED
Tri Pointe Homes
TPH
| $70K | ﹤0.01% |
4,200
+2,900
| +223% | +$56.9K |
|
|
6041
United Airlines
UAL
$41.7B
| $70K | ﹤0.01% |
2,000
-516,610
| -100% | -$22.7M |
|
|
PSB
6042
DELISTED
PS Business Parks, Inc.
PSB
| $70K | ﹤0.01% |
+376
| New | +$68.5K |
|
|
NWECW
6043
CALL
DELISTED
NORTHWESTERN CORPORATION WARANTS
NWECW
| $70K | ﹤0.01% |
1,200
+100
| +9% | +$5.83K |
|
6044
CALL
Blue Bird Corp
BLBD
$2.36B
| $69K | ﹤0.01% |
7,500
| – | – |
|
6045
Direxion Daily Aerospace & Defense Bull 3X ETF
DFEN
$416M
| $69K | ﹤0.01% |
4,482
+365
| +9% | +$6.54K |
|
6046
CALL
Full House Resorts
FLL
$83M
| $69K | ﹤0.01% |
11,400
-4,700
| -29% | -$36.2K |
|
6047
iShares US Treasury Bond ETF
GOVT
$43.5B
| $69K | ﹤0.01% |
+2,888
| New | +$69.5K |
|
6048
CALL
Insmed
INSM
$21.3B
| $69K | ﹤0.01% |
3,500
-43,200
| -93% | -$905K |
|
|
NVVE
6049
CALL
DELISTED
Nuvve Holding Corp
NVVE
| – | – |
0
| – | – |
|
6050
Personalis
PSNL
$1.41B
| $69K | ﹤0.01% |
20,149
+19,876
| +7,281% | +$101K |
|
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.