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 | |
|---|---|---|---|---|---|---|
4776
PUT
Valvoline
VVV
$4.92B
| $175K | ﹤0.01% |
6,100
+2,300
| +61% | +$70.6K |
|
|
AMPS
4777
DELISTED
Altus Power
AMPS
| $175K | ﹤0.01% |
27,734
-2,782
| -9% | -$18.6K |
|
4778
CALL
Alexandria Real Estate Equities
ARE
$8.94B
| $174K | ﹤0.01% |
1,200
-16,100
| -93% | -$2.73M |
|
4779
American Resources Corp
AREC
$189M
| $174K | ﹤0.01% |
120,063
-30,255
| -20% | -$53.9K |
|
|
CGAU
4780
CALL
Centerra Gold
CGAU
$3.41B
| $174K | ﹤0.01% |
25,900
+19,400
| +298% | +$164K |
|
4781
PUT
First Trust Preferred Securities and Income ETF
FPE
$6.33B
| $174K | ﹤0.01% |
10,100
+10,000
| +10,000% | +$181K |
|
4782
PUT
News Corp Class B
NWS
$17B
| $174K | ﹤0.01% |
11,200
-12,600
| -53% | -$235K |
|
|
WEBR
4783
DELISTED
Weber Inc.
WEBR
| $174K | ﹤0.01% |
24,241
+9,405
| +63% | +$78.7K |
|
|
AGEN
4784
Agenus
AGEN
$311M
| $173K | ﹤0.01% |
4,563
+1,431
| +46% | +$51.9K |
|
4785
CALL
BuzzFeed
BZFD
$98.2M
| $173K | ﹤0.01% |
28,200
+21,875
| +346% | +$330K |
|
4786
PUT
Century Casinos
CNTY
$34M
| $173K | ﹤0.01% |
24,100
-28,800
| -54% | -$269K |
|
4787
Idexx Laboratories
IDXX
$43.9B
| $173K | ﹤0.01% |
495
-595
| -55% | -$243K |
|
4788
JB Hunt Transport Services
JBHT
$25.6B
| $173K | ﹤0.01% |
1,104
-3,927
| -78% | -$665K |
|
4789
Fidelity Nasdaq Composite Index ETF
ONEQ
$10.3B
| $173K | ﹤0.01% |
4,024
-5,329
| -57% | -$254K |
|
4790
Cenntro
CENN
$8.09M
| $172K | ﹤0.01% |
191
-53
| -22% | -$56.1K |
|
4791
PUT
Warner Music
WMG
$13.5B
| $172K | ﹤0.01% |
7,100
+6,400
| +914% | +$191K |
|
|
NEUE
4792
DELISTED
NeueHealth
NEUE
| $172K | ﹤0.01% |
1,187
+1,045
| +736% | +$152K |
|
4793
PUT
Amcor
AMCR
$20.7B
| $171K | ﹤0.01% |
2,760
-620
| -18% | -$38.3K |
|
4794
CALL
Vita Coco
COCO
$3.86B
| $171K | ﹤0.01% |
17,500
+10,900
| +165% | +$115K |
|
4795
PUT
National Beverage
FIZZ
$2.97B
| $171K | ﹤0.01% |
3,500
-1,200
| -26% | -$56K |
|
4796
PUT
Galicia Financial Group
GGAL
$8.12B
| $171K | ﹤0.01% |
24,800
-25,000
| -50% | -$224K |
|
4797
CALL
Herc Holdings
HRI
$5.02B
| $171K | ﹤0.01% |
1,900
+1,600
| +533% | +$192K |
|
4798
CALL
NiSource
NI
$21.4B
| $171K | ﹤0.01% |
5,800
+4,300
| +287% | +$130K |
|
4799
CALL
Natural Resource Partners
NRP
$1.29B
| $171K | ﹤0.01% |
4,600
-49,000
| -91% | -$2.22M |
|
4800
CALL
Provident Financial Services
PFS
$3.22B
| $171K | ﹤0.01% |
7,700
+3,300
| +75% | +$73.8K |
|
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.