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 | |
|---|---|---|---|---|---|---|
1626
PUT
Vermilion Energy
VET
$1.73B
| $2.59M | ﹤0.01% |
135,900
+43,700
| +47% | +$910K |
|
|
VG
1627
CALL
DELISTED
Vonage Holdings Corporation
VG
| $2.59M | ﹤0.01% |
137,500
+98,100
| +249% | +$1.88M |
|
1628
PUT
Charles River Laboratories
CRL
$10.9B
| $2.59M | ﹤0.01% |
12,100
-17,900
| -60% | -$4.37M |
|
1629
CALL
FMC
FMC
$1.42B
| $2.59M | ﹤0.01% |
24,200
+16,600
| +218% | +$2.03M |
|
1630
CALL
NewMarket
NEU
$7.17B
| $2.59M | ﹤0.01% |
8,600
+8,100
| +1,620% | +$2.62M |
|
1631
PUT
Canadian National Railway
CNI
$78.3B
| $2.59M | ﹤0.01% |
23,000
-800
| -3% | -$93.5K |
|
1632
CALL
UiPath
PATH
$5.62B
| $2.59M | ﹤0.01% |
142,200
-143,400
| -50% | -$2.68M |
|
|
NVMI
1633
CALL
Nova
NVMI
$13.9B
| $2.58M | ﹤0.01% |
29,200
+19,600
| +204% | +$1.95M |
|
|
WCC
1634
CALL
WESCO International
WCC
$16.2B
| $2.58M | ﹤0.01% |
24,100
+17,600
| +271% | +$2.17M |
|
|
WOW
1635
DELISTED
WideOpenWest
WOW
| $2.58M | ﹤0.01% |
141,787
+86,195
| +155% | +$1.73M |
|
1636
CALL
East-West Bancorp
EWBC
$17.9B
| $2.58M | ﹤0.01% |
39,800
+12,700
| +47% | +$912K |
|
|
BPT
1637
CALL
DELISTED
BP Prudhoe Bay Royalty Trust
BPT
| $2.58M | ﹤0.01% |
125,900
+96,300
| +325% | +$1.73M |
|
1638
PUT
Coty
COTY
$2.33B
| $2.57M | ﹤0.01% |
321,400
+14,200
| +5% | +$107K |
|
|
JPGE
1639
CALL
DELISTED
JPMorgan Diversified Return Global Equity ETF
JPGE
| $2.57M | ﹤0.01% |
46,500
+30,200
| +185% | +$1.67M |
|
1640
CALL
Kulicke & Soffa
KLIC
$5.3B
| $2.57M | ﹤0.01% |
60,000
-200
| -0.3% | -$9.91K |
|
1641
CALL
CarGurus
CARG
$3.01B
| $2.56M | ﹤0.01% |
119,300
-53,600
| -31% | -$1.59M |
|
1642
CALL
MBIA
MBI
$288M
| $2.56M | ﹤0.01% |
207,400
-44,800
| -18% | -$589K |
|
|
CMA
1643
CALL
DELISTED
Comerica
CMA
| $2.55M | ﹤0.01% |
34,800
+22,100
| +174% | +$1.79M |
|
1644
Cardinal Health
CAH
$53.4B
| $2.55M | ﹤0.01% |
48,783
-34,186
| -41% | -$1.94M |
|
1645
PUT
Edison International
EIX
$30.7B
| $2.55M | ﹤0.01% |
40,300
+16,800
| +71% | +$1.14M |
|
1646
PUT
American Eagle Outfitters
AEO
$2.85B
| $2.54M | ﹤0.01% |
227,400
+77,600
| +52% | +$1.09M |
|
1647
State Street SPDR S&P Regional Banking ETF
KRE
$4.86B
| $2.54M | ﹤0.01% |
+43,702
| New | +$2.73M |
|
1648
PUT
Urban Outfitters
URBN
$5.99B
| $2.54M | ﹤0.01% |
135,900
+8,600
| +7% | +$195K |
|
|
NNDM
1649
PUT
Nano Dimension
NNDM
$309M
| $2.53M | ﹤0.01% |
805,600
+105,000
| +15% | +$312K |
|
1650
Simon Property Group
SPG
$74.5B
| $2.53M | ﹤0.01% |
26,629
-23,519
| -47% | -$2.7M |
|
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.