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 | |
|---|---|---|---|---|---|---|
|
CS
2701
DELISTED
Credit Suisse Group
CS
| $928K | ﹤0.01% |
163,695
-26,203
| -14% | -$178K |
|
|
CORZ
2702
CALL
DELISTED
Core Scientific, Inc. Common Stock
CORZ
| $927K | ﹤0.01% |
622,300
+182,900
| +42% | +$840K |
|
2703
PUT
Alta Equipment Group
ALTG
$208M
| $926K | ﹤0.01% |
103,300
+95,800
| +1,277% | +$1.05M |
|
|
TWO
2704
CALL
Two Harbors Investment
TWO
$1.27B
| $925K | ﹤0.01% |
46,450
-17,750
| -28% | -$359K |
|
|
AVLR
2705
PUT
DELISTED
Avalara, Inc.
AVLR
| $924K | ﹤0.01% |
13,100
-9,400
| -42% | -$773K |
|
2706
BioCryst Pharmaceuticals
BCRX
$2.43B
| $923K | ﹤0.01% |
87,260
+21,075
| +32% | +$217K |
|
2707
Invesco CurrencyShares Swiss Franc Trust
FXF
$409M
| $922K | ﹤0.01% |
9,840
+5,789
| +143% | +$538K |
|
2708
PUT
Lakeland Industries
LAKE
$106M
| $921K | ﹤0.01% |
60,000
-25,000
| -29% | -$425K |
|
2709
CALL
RLJ Lodging Trust
RLJ
$1.9B
| $921K | ﹤0.01% |
83,500
-800
| -0.9% | -$10.4K |
|
|
SAVE
2710
DELISTED
Spirit Airlines, Inc.
SAVE
| $920K | ﹤0.01% |
38,598
-47,275
| -55% | -$1.05M |
|
2711
CALL
Sprouts Farmers Market
SFM
$7.23B
| $919K | ﹤0.01% |
36,300
-6,900
| -16% | -$192K |
|
2712
Uranium Energy
UEC
$4.9B
| $919K | ﹤0.01% |
298,438
-181,275
| -38% | -$754K |
|
2713
CALL
F5
FFIV
$23B
| $918K | ﹤0.01% |
6,000
-12,700
| -68% | -$2.21M |
|
2714
PUT
Natera
NTRA
$37B
| $917K | ﹤0.01% |
25,900
+20,900
| +418% | +$774K |
|
2715
RB Global
RBA
$21.7B
| $916K | ﹤0.01% |
+14,082
| New | +$826K |
|
2716
CALL
Barclays
BCS
$96.3B
| $915K | ﹤0.01% |
120,500
-49,600
| -29% | -$389K |
|
|
NXDR
2717
PUT
Nextdoor Holdings
NXDR
$870M
| $914K | ﹤0.01% |
276,200
+61,900
| +29% | +$243K |
|
2718
General Dynamics
GD
$105B
| $913K | ﹤0.01% |
4,130
+2,130
| +107% | +$490K |
|
2719
CALL
Newmark Group
NMRK
$2.82B
| $913K | ﹤0.01% |
94,500
+78,900
| +506% | +$913K |
|
2720
Jazz Pharmaceuticals
JAZZ
$16B
| $912K | ﹤0.01% |
5,852
-10,848
| -65% | -$1.67M |
|
|
KZR
2721
PUT
DELISTED
Kezar Life Sciences
KZR
| $912K | ﹤0.01% |
11,030
+740
| +7% | +$65.3K |
|
|
RETA
2722
PUT
DELISTED
Reata Pharmaceuticals, Inc. Class A Common Stock
RETA
| $911K | ﹤0.01% |
30,000
-120,500
| -80% | -$3.59M |
|
2723
CALL
Revolve Group
RVLV
$1.84B
| $909K | ﹤0.01% |
35,100
+15,500
| +79% | +$572K |
|
2724
CALL
Rayonier
RYN
$6.52B
| $908K | ﹤0.01% |
26,784
-60,733
| -69% | -$2.23M |
|
2725
CALL
American Water Works
AWK
$26.3B
| $907K | ﹤0.01% |
6,100
-12,200
| -67% | -$1.86M |
|
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.