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 | |
|---|---|---|---|---|---|---|
3876
CALL
First Trust NASDAQ-100 Technology Index Fund
QTEC
$4.33B
| $354K | ﹤0.01% |
3,100
+3,000
| +3,000% | +$385K |
|
|
DS
3877
CALL
DELISTED
Drive Shack Inc.
DS
| $354K | ﹤0.01% |
259,000
+8,900
| +4% | +$12.7K |
|
3878
CALL
JFrog
FROG
$8.88B
| $353K | ﹤0.01% |
16,800
+2,700
| +19% | +$56.6K |
|
3879
Invesco
IVZ
$12.4B
| $353K | ﹤0.01% |
+21,917
| New | +$415K |
|
3880
KraneShares Global Carbon Strategy ETF
KRBN
$139M
| $353K | ﹤0.01% |
+7,177
| New | +$345K |
|
3881
CALL
Principal Financial Group
PFG
$24.3B
| $353K | ﹤0.01% |
5,300
-18,300
| -78% | -$1.29M |
|
|
CMBT
3882
CALL
CMB.TECH NV
CMBT
$4.52B
| $353K | ﹤0.01% |
29,600
+3,000
| +11% | +$36.1K |
|
3883
CALL
Cohu
COHU
$1.86B
| $352K | ﹤0.01% |
12,700
-8,700
| -41% | -$240K |
|
3884
CALL
Halozyme
HALO
$9.88B
| $352K | ﹤0.01% |
8,000
+2,500
| +45% | +$108K |
|
|
LEAP
3885
DELISTED
Ribbit LEAP, Ltd.
LEAP
| $352K | ﹤0.01% |
35,597
-2,841
| -7% | -$28.1K |
|
3886
CALL
Adaptive Biotechnologies
ADPT
$3.61B
| $351K | ﹤0.01% |
43,500
+38,500
| +770% | +$339K |
|
|
ETWO
3887
CALL
DELISTED
E2open Parent Holdings
ETWO
| $351K | ﹤0.01% |
45,200
-26,800
| -37% | -$215K |
|
3888
Marqeta
MQ
$1.93B
| $351K | ﹤0.01% |
10,846
+540
| +5% | +$21.2K |
|
3889
Arbutus Biopharma
ABUS
$847M
| $350K | ﹤0.01% |
129,391
-423
| -0.3% | -$1.08K |
|
3890
DTE Energy
DTE
$29.9B
| $350K | ﹤0.01% |
+2,763
| New | +$360K |
|
3891
PUT
XP
XP
$8.43B
| $350K | ﹤0.01% |
19,500
-83,900
| -81% | -$1.93M |
|
|
LHCG
3892
DELISTED
LHC Group LLC
LHCG
| $350K | ﹤0.01% |
+2,250
| New | +$371K |
|
3893
CALL
Krispy Kreme
DNUT
$562M
| $349K | ﹤0.01% |
25,700
+9,200
| +56% | +$127K |
|
3894
WisdomTree Japan Hedged Equity Fund
DXJ
$7.07B
| $349K | ﹤0.01% |
5,598
+2,956
| +112% | +$188K |
|
3895
CALL
HealthEquity
HQY
$8.71B
| $349K | ﹤0.01% |
5,700
+2,900
| +104% | +$186K |
|
3896
PUT
Kimbell Royalty Partners
KRP
$1.46B
| $349K | ﹤0.01% |
22,300
-52,400
| -70% | -$911K |
|
3897
CALL
Performance Food Group
PFGC
$18.3B
| $349K | ﹤0.01% |
7,600
-11,900
| -61% | -$550K |
|
3898
CALL
State Street Multi-Asset Real Return ETF
RLY
$1.26B
| $349K | ﹤0.01% |
8,400
+7,700
| +1,100% | +$235K |
|
3899
CALL
TriNet
TNET
$3.23B
| $349K | ﹤0.01% |
4,500
-7,700
| -63% | -$643K |
|
|
SMAR
3900
DELISTED
Smartsheet Inc.
SMAR
| $349K | ﹤0.01% |
11,126
+7,134
| +179% | +$296K |
|
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.