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 | |
|---|---|---|---|---|---|---|
4326
Frontier Group Holdings
ULCC
$1.61B
| $251K | ﹤0.01% |
+26,824
| New | +$271K |
|
4327
PUT
US Physical Therapy
USPH
$1.22B
| $251K | ﹤0.01% |
2,300
+2,200
| +2,200% | +$234K |
|
4328
CALL
Columbia Financial
CLBK
$1.14B
| $250K | ﹤0.01% |
11,500
+8,300
| +259% | +$173K |
|
4329
CALL
Sprinklr
CXM
$1.45B
| $250K | ﹤0.01% |
24,800
+11,300
| +84% | +$137K |
|
4330
Ezcorp Inc
EZPW
$1.79B
| $250K | ﹤0.01% |
33,420
+25,473
| +321% | +$185K |
|
4331
PUT
Lantheus
LNTH
$6.58B
| $250K | ﹤0.01% |
3,800
-1,800
| -32% | -$113K |
|
4332
Malibu Boats
MBUU
$550M
| $250K | ﹤0.01% |
4,745
+4,447
| +1,492% | +$241K |
|
4333
3D Systems Corp
DDD
$441M
| $249K | ﹤0.01% |
25,743
-110,954
| -81% | -$1.3M |
|
4334
CALL
Eton Pharmaceutcials
ETON
$1.34B
| $249K | ﹤0.01% |
95,100
+15,400
| +19% | +$51.7K |
|
4335
PUT
NatWest
NWG
$73.7B
| $249K | ﹤0.01% |
42,529
+28,693
| +207% | +$172K |
|
4336
Schrodinger
SDGR
$1.15B
| $249K | ﹤0.01% |
9,434
-18,252
| -66% | -$490K |
|
4337
PUT
CVR Partners
UAN
$1.35B
| $249K | ﹤0.01% |
2,500
-34,000
| -93% | -$4.57M |
|
4338
Dentsply Sirona
XRAY
$2.75B
| $249K | ﹤0.01% |
+6,975
| New | +$282K |
|
|
MTA
4339
Metalla Royalty & Streaming
MTA
$712M
| $248K | ﹤0.01% |
51,436
+16,364
| +47% | +$95.3K |
|
|
MANT
4340
PUT
DELISTED
Mantech International Corp
MANT
| $248K | ﹤0.01% |
+2,600
| New | +$232K |
|
4341
BlackSky Technology
BKSY
$919M
| $247K | ﹤0.01% |
13,372
+8,466
| +173% | +$129K |
|
4342
PUT
Lindblad Expeditions
LIND
$1.95B
| $247K | ﹤0.01% |
+30,600
| New | +$399K |
|
4343
PUT
NiSource
NI
$21.6B
| $247K | ﹤0.01% |
8,400
+6,700
| +394% | +$203K |
|
4344
Opko Health
OPK
$993M
| $247K | ﹤0.01% |
97,796
-29,073
| -23% | -$84.8K |
|
4345
PUT
Western Alliance Bancorporation
WAL
$8.87B
| $247K | ﹤0.01% |
3,500
-600
| -15% | -$45.9K |
|
4346
Commercial Metals
CMC
$7.57B
| $246K | ﹤0.01% |
7,437
-10,460
| -58% | -$412K |
|
4347
CALL
Castor Maritime
CTRM
$18.9M
| $246K | ﹤0.01% |
18,430
-2,370
| -11% | -$43.9K |
|
|
EVRI
4348
PUT
DELISTED
Everi Holdings
EVRI
| $246K | ﹤0.01% |
15,100
-14,900
| -50% | -$262K |
|
4349
CALL
Gladstone Capital
GLAD
$426M
| $246K | ﹤0.01% |
12,200
-1,850
| -13% | -$41.9K |
|
4350
Ross Stores
ROST
$81B
| $246K | ﹤0.01% |
3,514
+14
| +0.4% | +$1.25K |
|
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.