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 | |
|---|---|---|---|---|---|---|
4976
PUT
Reliance Steel & Aluminium
RS
$20.7B
| $152K | ﹤0.01% |
900
-5,300
| -85% | -$990K |
|
4977
Smart Sand
SND
$185M
| $152K | ﹤0.01% |
76,371
+74,581
| +4,167% | +$258K |
|
4978
Snowflake
SNOW
$102B
| $152K | ﹤0.01% |
1,100
| – | – |
|
4979
PUT
System1
SST
$14.3M
| $152K | ﹤0.01% |
2,190
-7,790
| -78% | -$982K |
|
4980
Invesco Solar ETF
TAN
$1.42B
| $152K | ﹤0.01% |
2,130
-42,025
| -95% | -$2.91M |
|
4981
Warner Music
WMG
$13.5B
| $152K | ﹤0.01% |
+6,267
| New | +$187K |
|
4982
PUT
Xenon Pharmaceuticals
XENE
$6.06B
| $152K | ﹤0.01% |
5,000
+1,400
| +39% | +$42.3K |
|
|
TWOU
4983
PUT
DELISTED
2U Inc
TWOU
| $152K | ﹤0.01% |
487
+154
| +46% | +$47.5K |
|
|
LICY
4984
DELISTED
Li-Cycle Holdings Corp.
LICY
| $152K | ﹤0.01% |
2,774
-8,319
| -75% | -$487K |
|
|
SLGC
4985
DELISTED
SomaLogic, Inc. Class A Common Stock
SLGC
| $152K | ﹤0.01% |
33,635
+15,684
| +87% | +$93.3K |
|
4986
CALL
ANI Pharmaceuticals
ANIP
$1.8B
| $151K | ﹤0.01% |
5,100
-900
| -15% | -$26K |
|
4987
CALL
Banco Macro
BMA
$5.88B
| $151K | ﹤0.01% |
13,500
+1,900
| +16% | +$28.2K |
|
4988
CALL
Flywire
FLYW
$1.98B
| $151K | ﹤0.01% |
8,600
+5,700
| +197% | +$132K |
|
4989
ImmunityBio
IBRX
$7.51B
| $151K | ﹤0.01% |
40,852
+16,716
| +69% | +$67.1K |
|
4990
CALL
Inovio Pharmaceuticals
INO
$55.7M
| $151K | ﹤0.01% |
7,317
+442
| +6% | +$12.5K |
|
4991
CALL
Resideo Technologies
REZI
$5.19B
| $151K | ﹤0.01% |
7,800
+2,600
| +50% | +$58.7K |
|
|
LEV
4992
PUT
DELISTED
The Lion Electric Company
LEV
| $151K | ﹤0.01% |
36,000
+200
| +0.6% | +$1.17K |
|
|
PIPP
4993
PUT
DELISTED
Pine Island Acquisition Corp.
PIPP
| $151K | ﹤0.01% |
15,400
-4,300
| -22% | -$42.4K |
|
|
HMTV
4994
DELISTED
Hemisphere Media Group, Inc.
HMTV
| $151K | ﹤0.01% |
19,904
+19,813
| +21,773% | +$115K |
|
4995
Alpha and Omega Semiconductor
AOSL
$950M
| $150K | ﹤0.01% |
4,521
-6,051
| -57% | -$248K |
|
4996
Skywest
SKYW
$4.24B
| $150K | ﹤0.01% |
7,071
-1,364
| -16% | -$35.8K |
|
4997
Sundial Growers
SNDL
$320M
| $150K | ﹤0.01% |
46,074
+15,833
| +52% | +$70K |
|
4998
Direxion Daily Semiconductor Bull 3X ETF
SOXL
$16.7B
| $150K | ﹤0.01% |
11,517
-170,920
| -94% | -$3.86M |
|
4999
Synaptics
SYNA
$4.19B
| $150K | ﹤0.01% |
1,274
+934
| +275% | +$137K |
|
|
THS
5000
PUT
DELISTED
Treehouse Foods
THS
| $150K | ﹤0.01% |
3,600
| – | – |
|
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.