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 | |
|---|---|---|---|---|---|---|
2551
Entegris
ENTG
$19.2B
| $1.05M | ﹤0.01% |
+11,456
| New | +$1.24M |
|
2552
CALL
MannKind Corp
MNKD
$1.22B
| $1.05M | ﹤0.01% |
277,000
+167,400
| +153% | +$615K |
|
|
SI
2553
PUT
DELISTED
Silvergate Capital Corporation
SI
| $1.05M | ﹤0.01% |
19,700
+2,000
| +11% | +$187K |
|
2554
CALL
Box
BOX
$4.18B
| $1.05M | ﹤0.01% |
41,900
-83,100
| -66% | -$2.32M |
|
2555
CALL
Navios Maritime Partners
NMM
$2.21B
| $1.05M | ﹤0.01% |
45,800
-16,300
| -26% | -$476K |
|
2556
CALL
Northern Oil and Gas
NOG
$2.21B
| $1.05M | ﹤0.01% |
41,700
-75,600
| -64% | -$2.2M |
|
|
COHR
2557
CALL
DELISTED
Coherent Inc
COHR
| $1.05M | ﹤0.01% |
30,600
+28,800
| +1,600% | +$7.72M |
|
2558
CALL
Hecla Mining
HL
$10.2B
| $1.05M | ﹤0.01% |
268,500
+33,700
| +14% | +$175K |
|
2559
PUT
Nu Holdings
NU
$70.2B
| $1.05M | ﹤0.01% |
281,400
+151,200
| +116% | +$767K |
|
2560
Viatris
VTRS
$20.5B
| $1.05M | ﹤0.01% |
100,485
-228,260
| -69% | -$2.5M |
|
2561
PUT
W.P. Carey
WPC
$17B
| $1.05M | ﹤0.01% |
12,967
-7,045
| -35% | -$568K |
|
|
TWOU
2562
CALL
DELISTED
2U Inc
TWOU
| $1.05M | ﹤0.01% |
3,350
-1,290
| -28% | -$398K |
|
|
CS
2563
PUT
DELISTED
Credit Suisse Group
CS
| $1.05M | ﹤0.01% |
185,700
+5,100
| +3% | +$34.6K |
|
2564
CALL
Bloom Energy
BE
$53.5B
| $1.05M | ﹤0.01% |
63,700
-49,400
| -44% | -$905K |
|
2565
PUT
Global E Online
GLBE
$6.34B
| $1.05M | ﹤0.01% |
52,100
+4,800
| +10% | +$110K |
|
2566
Toast
TOST
$17.9B
| $1.05M | ﹤0.01% |
81,086
+48,373
| +148% | +$802K |
|
|
LTC
2567
CALL
LTC Properties
LTC
$2.15B
| $1.05M | ﹤0.01% |
27,300
-22,700
| -45% | -$838K |
|
2568
CALL
Paylocity
PCTY
$6.97B
| $1.05M | ﹤0.01% |
6,000
+5,400
| +900% | +$984K |
|
2569
CALL
Qualys
QLYS
$4.75B
| $1.05M | ﹤0.01% |
+8,300
| New | +$1.09M |
|
2570
PUT
UDR
UDR
$12.8B
| $1.04M | ﹤0.01% |
22,700
-6,700
| -23% | -$338K |
|
2571
CALL
PagSeguro Digital
PAGS
$2.62B
| $1.04M | ﹤0.01% |
102,000
-181,500
| -64% | -$2.6M |
|
|
SAFE
2572
CALL
DELISTED
Safehold Inc.
SAFE
| $1.04M | ﹤0.01% |
29,500
+2,300
| +8% | +$100K |
|
2573
Vanguard Short-Term Inflation-Protected Securities Index Fund
VTIP
$19.1B
| $1.04M | ﹤0.01% |
20,777
-21,741
| -51% | -$1.1M |
|
2574
Generac Holdings
GNRC
$11.6B
| $1.04M | ﹤0.01% |
4,930
-6,988
| -59% | -$1.72M |
|
|
FOCS
2575
CALL
DELISTED
Focus Financial Partners Inc. Class A
FOCS
| $1.04M | ﹤0.01% |
30,500
-49,200
| -62% | -$1.88M |
|
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.