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 | |
|---|---|---|---|---|---|---|
2876
PUT
Ituran Location and Control
ITRN
$1.09B
| $793K | ﹤0.01% |
32,400
+32,300
| +32,300% | +$758K |
|
2877
CALL
Outfront Media
OUT
$5.66B
| $793K | ﹤0.01% |
47,548
+10,566
| +29% | +$230K |
|
2878
CALL
Prospect Capital
PSEC
$1.12B
| $793K | ﹤0.01% |
113,500
+38,000
| +50% | +$292K |
|
|
SRNE
2879
CALL
DELISTED
Sorrento Therapeutics, Inc.
SRNE
| $793K | ﹤0.01% |
394,900
+213,900
| +118% | +$370K |
|
2880
Intrepid Potash
IPI
$479M
| $792K | ﹤0.01% |
+17,490
| New | +$1.27M |
|
2881
CALL
Lattice Semiconductor
LSCC
$16.5B
| $790K | ﹤0.01% |
16,300
-15,600
| -49% | -$777K |
|
2882
CALL
West Fraser Timber
WFG
$5.25B
| $790K | ﹤0.01% |
10,300
+9,600
| +1,371% | +$809K |
|
2883
PUT
Alkermes
ALKS
$8.45B
| $789K | ﹤0.01% |
26,500
+12,700
| +92% | +$365K |
|
2884
CALL
Neurocrine Biosciences
NBIX
$18.3B
| $789K | ﹤0.01% |
8,100
-13,100
| -62% | -$1.21M |
|
2885
Invesco NASDAQ 100 ETF
QQQM
$95.2B
| $789K | ﹤0.01% |
+6,850
| New | +$875K |
|
|
SFBS
2886
CALL
ServisFirst Bancshares
SFBS
$4.91B
| $789K | ﹤0.01% |
10,000
-3,700
| -27% | -$301K |
|
2887
PUT
STMicroelectronics
STM
$45.3B
| $789K | ﹤0.01% |
25,100
-34,700
| -58% | -$1.29M |
|
2888
PUT
Newell Brands
NWL
$2.24B
| $788K | ﹤0.01% |
41,400
+12,700
| +44% | +$270K |
|
|
PDS
2889
PUT
Precision Drilling
PDS
$1.01B
| $787K | ﹤0.01% |
+12,300
| New | +$892K |
|
2890
PUT
Krispy Kreme
DNUT
$564M
| $786K | ﹤0.01% |
57,800
-196,200
| -77% | -$2.71M |
|
2891
PUT
Virtu Financial
VIRT
$5.07B
| $786K | ﹤0.01% |
33,600
+7,900
| +31% | +$226K |
|
|
CRHC
2892
PUT
DELISTED
Cohn Robbins Holdings Corp.
CRHC
| $786K | ﹤0.01% |
79,100
-71,100
| -47% | -$706K |
|
|
BGFV
2893
PUT
DELISTED
Big 5 Sporting Goods
BGFV
| $785K | ﹤0.01% |
70,100
-225,500
| -76% | -$3.08M |
|
2894
Bumble
BMBL
$393M
| $785K | ﹤0.01% |
27,917
-14,035
| -33% | -$381K |
|
2895
Zillow
ZG
$7.62B
| $785K | ﹤0.01% |
24,709
-3,867
| -14% | -$153K |
|
2896
PUT
Mercury Systems
MRCY
$6.01B
| $784K | ﹤0.01% |
12,200
-4,900
| -29% | -$292K |
|
2897
PUT
Retractable Technologies
RVP
$20.1M
| $784K | ﹤0.01% |
204,800
+2,500
| +1% | +$10.2K |
|
2898
PUT
Establishment Labs
ESTA
$2.71B
| $783K | ﹤0.01% |
14,400
+14,300
| +14,300% | +$908K |
|
2899
PUT
Arcus Biosciences
RCUS
$3.41B
| $783K | ﹤0.01% |
30,900
+28,600
| +1,243% | +$700K |
|
2900
Grab
GRAB
$13.9B
| $782K | ﹤0.01% |
+309,194
| New | +$888K |
|
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.