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 | |
|---|---|---|---|---|---|---|
626
VanEck Gold Miners ETF
GDX
$22.9B
| $15.1M | 0.02% |
553,014
+164,196
| +42% | +$5.54M |
|
627
CALL
Clorox
CLX
$11.6B
| $15.1M | 0.02% |
106,900
+1,200
| +1% | +$171K |
|
628
CALL
Paychex
PAYX
$40.6B
| $15M | 0.02% |
131,600
+40,900
| +45% | +$5.14M |
|
629
CALL
MetLife
MET
$60.4B
| $15M | 0.02% |
238,600
+151,700
| +175% | +$10M |
|
630
PUT
Travelers Companies
TRV
$80.8B
| $15M | 0.02% |
88,500
-51,200
| -37% | -$8.9M |
|
631
General Motors
GM
$74.2B
| $14.9M | 0.02% |
470,005
+369,187
| +366% | +$13.8M |
|
632
CALL
Autodesk
ADSK
$44.2B
| $14.9M | 0.02% |
86,800
+32,600
| +60% | +$6.27M |
|
633
PUT
Wayfair
W
$11.1B
| $14.9M | 0.02% |
341,500
+102,500
| +43% | +$7.2M |
|
634
PUT
Cummins
CMI
$91B
| $14.8M | 0.02% |
76,500
+44,300
| +138% | +$8.86M |
|
635
PUT
Lumen
LUMN
$6.54B
| $14.8M | 0.02% |
1,353,400
+448,000
| +49% | +$5.03M |
|
636
CALL
Vanguard Dividend Appreciation ETF
VIG
$111B
| $14.7M | 0.02% |
102,600
+40,700
| +66% | +$6.19M |
|
637
PUT
CSX Corp
CSX
$98.7B
| $14.7M | 0.02% |
505,400
+183,200
| +57% | +$5.97M |
|
638
CALL
Skyworks Solutions
SWKS
$9.05B
| $14.7M | 0.02% |
158,400
+22,800
| +17% | +$2.46M |
|
639
PUT
Western Digital
WDC
$176B
| $14.5M | 0.02% |
427,064
-261,558
| -38% | -$10.5M |
|
640
CALL
Exelon
EXC
$48.6B
| $14.5M | 0.02% |
405,000
+1,000
| +0.2% | +$47K |
|
641
PUT
Constellation Brands
STZ
$22.2B
| $14.4M | 0.02% |
62,000
-4,400
| -7% | -$1.07M |
|
642
PUT
SAP
SAP
$188B
| $14.4M | 0.02% |
158,200
+50,500
| +47% | +$5.05M |
|
643
CALL
Novavax
NVAX
$1.23B
| $14.3M | 0.02% |
279,000
-82,100
| -23% | -$4.25M |
|
644
CALL
Lennar Class A
LEN
$20.3B
| $14.3M | 0.02% |
209,699
-20,867
| -9% | -$1.53M |
|
645
CALL
Vertex Pharmaceuticals
VRTX
$122B
| $14.3M | 0.02% |
50,800
-18,700
| -27% | -$5.01M |
|
646
PUT
Boston Scientific
BSX
$66.1B
| $14.3M | 0.02% |
383,800
-86,300
| -18% | -$3.51M |
|
647
PUT
Novartis
NVS
$295B
| $14.3M | 0.02% |
169,200
-3,300
| -2% | -$290K |
|
|
UCD
648
CALL
DELISTED
PROSHARES ULTRA BLOOMBERG COMMODITY
UCD
| $14.2M | 0.02% |
335,100
+108,000
| +48% | +$4.57M |
|
649
PUT
American Electric Power
AEP
$73.7B
| $14.1M | 0.02% |
146,600
+37,600
| +34% | +$3.73M |
|
650
CALL
DexCom
DXCM
$27.6B
| $14M | 0.01% |
188,400
+101,200
| +116% | +$9.24M |
|
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.