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 | |
|---|---|---|---|---|---|---|
4101
CALL
AEye
LIDR
$47.2M
| $299K | ﹤0.01% |
5,223
-147
| -3% | -$19.9K |
|
4102
PUT
Prospect Capital
PSEC
$1.08B
| $299K | ﹤0.01% |
42,800
-26,200
| -38% | -$201K |
|
4103
ProShares Ultra Real Estate
URE
$60.1M
| $299K | ﹤0.01% |
+4,208
| New | +$357K |
|
4104
PUT
Outdoor Holding Co
POWW
$249M
| $298K | ﹤0.01% |
77,500
-121,400
| -61% | -$504K |
|
4105
PUT
Shoals Technologies Group
SHLS
$1.33B
| $298K | ﹤0.01% |
18,100
+12,400
| +218% | +$183K |
|
4106
Equinox Gold
EQX
$7.07B
| $297K | ﹤0.01% |
67,033
-27,556
| -29% | -$178K |
|
4107
Direxion Daily S&P 500 High Beta Bear 3X ETF
HIBS
$29.6M
| $297K | ﹤0.01% |
231
+82
| +55% | +$85.8K |
|
4108
iShares Select U.S. REIT ETF
ICF
$2.13B
| $297K | ﹤0.01% |
4,897
-13,875
| -74% | -$912K |
|
4109
CALL
Fidelity Nasdaq Composite Index ETF
ONEQ
$9.97B
| $297K | ﹤0.01% |
+6,900
| New | +$329K |
|
4110
PUT
AGCO
AGCO
$8.41B
| $296K | ﹤0.01% |
3,000
-6,300
| -68% | -$785K |
|
4111
Direxion Daily S&P Biotech Bear 3X ETF
LABD
$70.3M
| $296K | ﹤0.01% |
762
-817
| -52% | -$410K |
|
|
NINE
4112
PUT
DELISTED
Nine Energy Service
NINE
| $296K | ﹤0.01% |
111,700
+102,700
| +1,141% | +$309K |
|
|
TSP
4113
CALL
DELISTED
TuSimple Holdings Inc. Class A Common Stock
TSP
| $296K | ﹤0.01% |
41,000
+4,300
| +12% | +$39.1K |
|
4114
CALL
Ironwood Pharmaceuticals
IRWD
$586M
| $295K | ﹤0.01% |
25,600
+13,700
| +115% | +$161K |
|
4115
PUT
Snap-on
SNA
$21.5B
| $295K | ﹤0.01% |
1,500
-7,300
| -83% | -$1.56M |
|
4116
CALL
Terex
TEX
$7.37B
| $295K | ﹤0.01% |
10,800
+5,100
| +89% | +$170K |
|
4117
Beyond Air
XAIR
$3.97M
| $295K | ﹤0.01% |
110
+50
| +83% | +$121K |
|
|
ACB
4118
PUT
Aurora Cannabis
ACB
$169M
| $294K | ﹤0.01% |
22,300
+6,630
| +42% | +$166K |
|
4119
CALL
GXO Logistics
GXO
$5.93B
| $294K | ﹤0.01% |
6,800
-100
| -1% | -$5.54K |
|
|
FFAI
4120
PUT
Faraday Future Intelligent Electric
FFAI
$11.8M
| – | – |
0
| – | – |
|
4121
PUT
BlackLine
BL
$1.9B
| $293K | ﹤0.01% |
4,400
-8,000
| -65% | -$548K |
|
|
SRTA
4122
CALL
Strata Critical Medical Inc
SRTA
$421M
| $293K | ﹤0.01% |
65,800
+200
| +0.3% | +$1.44K |
|
4123
Guidewire Software
GWRE
$13.9B
| $293K | ﹤0.01% |
+4,137
| New | +$338K |
|
4124
PUT
Ocugen
OCGN
$403M
| $293K | ﹤0.01% |
129,400
-89,900
| -41% | -$215K |
|
4125
CALL
Primoris Services
PRIM
$4.06B
| $293K | ﹤0.01% |
13,500
+3,900
| +41% | +$93.9K |
|
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.