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 | |
|---|---|---|---|---|---|---|
4951
Lucid Motors
LCID
$2.88B
| $154K | ﹤0.01% |
900
-30
| -3% | -$5.7K |
|
4952
CALL
Tarsus Pharmaceuticals
TARS
$2.58B
| $154K | ﹤0.01% |
+10,600
| New | +$159K |
|
4953
CALL
Trinity Capital Inc.
TRIN
$1.58B
| $154K | ﹤0.01% |
10,700
+9,100
| +569% | +$149K |
|
|
TVRD
4954
CALL
Tvardi Therapeutics
TVRD
$19.7M
| $154K | ﹤0.01% |
469
-678
| -59% | -$238K |
|
|
DNMR
4955
PUT
DELISTED
Danimer Scientific, Inc.
DNMR
| $154K | ﹤0.01% |
845
-660
| -44% | -$120K |
|
|
ERF
4956
DELISTED
Enerplus Corporation
ERF
| $154K | ﹤0.01% |
11,668
-399
| -3% | -$5.5K |
|
4957
CALL
Sphere 3D
ANY
$18.5M
| $153K | ﹤0.01% |
4,089
-3,090
| -43% | -$267K |
|
4958
PUT
CrossAmerica Partners
CAPL
$847M
| $153K | ﹤0.01% |
7,600
+4,600
| +153% | +$97.1K |
|
4959
PUT
Cerus
CERS
$431M
| $153K | ﹤0.01% |
29,000
+24,100
| +492% | +$120K |
|
4960
PUT
Americold
COLD
$4.02B
| $153K | ﹤0.01% |
5,100
+3,100
| +155% | +$86.2K |
|
4961
Evolus
EOLS
$385M
| $153K | ﹤0.01% |
13,266
+375
| +3% | +$4.42K |
|
4962
PUT
Eagle Materials
EXP
$6.29B
| $153K | ﹤0.01% |
1,400
-23,800
| -94% | -$2.93M |
|
|
HUT
4963
Hut 8
HUT
$12.1B
| $153K | ﹤0.01% |
23,061
-10,721
| -32% | -$160K |
|
4964
CALL
Ichor Holdings
ICHR
$2.62B
| $153K | ﹤0.01% |
5,900
+900
| +18% | +$26.1K |
|
4965
PUT
Itron
ITRI
$4.36B
| $153K | ﹤0.01% |
3,100
+2,000
| +182% | +$99.2K |
|
|
MRUS
4966
CALL
DELISTED
Merus
MRUS
| $153K | ﹤0.01% |
+6,800
| New | +$142K |
|
|
EBET
4967
PUT
DELISTED
EBET, INC. Common Stock
EBET
| $153K | ﹤0.01% |
2,133
+2,126
| +30,371% | +$248K |
|
|
LUNA
4968
CALL
DELISTED
Luna Innovations Incorporated
LUNA
| $153K | ﹤0.01% |
26,300
+22,600
| +611% | +$133K |
|
4969
PUT
CareDx
CDNA
$2.26B
| $152K | ﹤0.01% |
7,100
+5,900
| +492% | +$164K |
|
4970
ProShares UltraShort Energy
DUG
$20.6M
| $152K | ﹤0.01% |
+1,699
| New | +$135K |
|
4971
CALL
Genesis Energy
GEL
$1.87B
| $152K | ﹤0.01% |
19,000
-254,900
| -93% | -$2.88M |
|
|
JMIA
4972
Jumia Technologies
JMIA
$737M
| $152K | ﹤0.01% |
25,221
+19,722
| +359% | +$144K |
|
4973
CALL
Littelfuse
LFUS
$11.2B
| $152K | ﹤0.01% |
600
+200
| +50% | +$50.2K |
|
4974
PUT
Ramaco Resources Class A
METC
$599M
| $152K | ﹤0.01% |
11,990
-4,961
| -29% | -$74.6K |
|
4975
Patria Investments
PAX
$1.75B
| $152K | ﹤0.01% |
11,520
+10,496
| +1,025% | +$166K |
|
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.