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
|
+$179M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$90.1M |
| 3 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$56M |
| 4 |
iShares Silver Trust
SLV
|
+$41.7M |
| 5 |
Advanced Micro Devices
AMD
|
+$39.8M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$42.8M |
| 2 |
Verizon
VZ
|
+$42.5M |
| 3 |
Occidental Petroleum
OXY
|
+$34.7M |
| 4 |
iShares China Large-Cap ETF
FXI
|
+$33M |
| 5 |
Direxion Daily S&P 500 Bull 3x ETF
SPXL
|
+$32.7M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.67% |
| 2 | Consumer Discretionary | 0.37% |
| 3 | Industrials | 0.24% |
| 4 | Healthcare | 0.22% |
| 5 | Financials | 0.19% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
676
PUT
Teva Pharmaceuticals
TEVA
$35.1B
| $14M | 0.01% |
1,490,700
+245,700
| +20% | +$2.05M |
|
677
Marvell Technology
MRVL
$189B
| $14M | 0.01% |
194,667
+150,626
| +342% | +$10.9M |
|
678
Intuit
INTU
$77.8B
| $13.9M | 0.01% |
29,005
+9,059
| +45% | +$4.64M |
|
|
HES
679
PUT
DELISTED
Hess
HES
| $13.9M | 0.01% |
130,200
-300
| -0.2% | -$28.5K |
|
680
CALL
PVH
PVH
$3.69B
| $13.9M | 0.01% |
181,800
+154,300
| +561% | +$14.3M |
|
681
PUT
Lennar Class A
LEN
$19.8B
| $13.9M | 0.01% |
176,643
+44,212
| +33% | +$3.98M |
|
682
CALL
SolarEdge
SEDG
$2.91B
| $13.9M | 0.01% |
43,000
+18,300
| +74% | +$5.03M |
|
683
CALL
Cintas
CTAS
$80.6B
| $13.8M | 0.01% |
129,600
+800
| +0.6% | +$77.8K |
|
684
PUT
Valero Energy
VLO
$92.3B
| $13.7M | 0.01% |
135,400
+19,800
| +17% | +$1.72M |
|
685
PUT
CarMax
KMX
$8.15B
| $13.7M | 0.01% |
142,100
-24,500
| -15% | -$2.64M |
|
686
PUT
Agnico Eagle Mines
AEM
$73.5B
| $13.7M | 0.01% |
223,600
+28,100
| +14% | +$1.52M |
|
687
Cameco
CCJ
$39.4B
| $13.6M | 0.01% |
467,668
+374,972
| +405% | +$8.8M |
|
|
SPLK
688
DELISTED
Splunk Inc
SPLK
| $13.6M | 0.01% |
91,514
+70,513
| +336% | +$8.63M |
|
689
DoorDash
DASH
$77.4B
| $13.6M | 0.01% |
116,014
+105,372
| +990% | +$11.4M |
|
690
CALL
Fidelity National Information Services
FIS
$21B
| $13.5M | 0.01% |
134,700
+63,100
| +88% | +$6.6M |
|
|
DENT
691
CALL
DELISTED
AdvisorShares Dent Tactical ETF
DENT
| $13.5M | 0.01% |
651,400
-28,100
| -4% | -$583K |
|
692
CALL
Corning
GLW
$133B
| $13.5M | 0.01% |
365,300
+191,500
| +110% | +$7.47M |
|
693
PUT
Deutsche Bank
DB
$68.1B
| $13.5M | 0.01% |
1,065,300
+574,400
| +117% | +$7.64M |
|
694
CALL
Magna International
MGA
$18.4B
| $13.5M | 0.01% |
209,300
+188,600
| +911% | +$14M |
|
695
CALL
Boston Scientific
BSX
$63.9B
| $13.4M | 0.01% |
303,500
+144,700
| +91% | +$6.27M |
|
696
CALL
Eaton
ETN
$158B
| $13.4M | 0.01% |
88,500
-3,700
| -4% | -$579K |
|
697
PUT
Hyatt Hotels
H
$17.6B
| $13.4M | 0.01% |
140,200
+127,800
| +1,031% | +$12M |
|
698
PUT
ProShares UltraShort Health Care
RXD
$3.38M
| $13.3M | 0.01% |
332,250
+31,650
| +11% | +$857K |
|
699
PUT
UBS Group
UBS
$173B
| $13.3M | 0.01% |
681,600
+481,000
| +240% | +$9.1M |
|
|
700
PUT
Fidelity National Information Services
FIS
$21B
| $13.3M | 0.01% |
132,600
-14,800
| -10% | -$1.55M |
|
Similar funds
Simplex Trading's Q1 2022 Portfolio in Review
As of Q1 2022, Simplex Trading held 12,038 positions worth $109B, up 10% from $99B the previous quarter. Its ten largest holdings account for 37% of the portfolio.
Simplex Trading deployed $17.5B of net new capital in Q1 2022, opening 1,603 new positions and adding to 4,441 existing holdings. Its largest new stake was iShares 20+ Year Treasury Bond ETF: 652,921 shares worth $86.2M.
By sector, the portfolio is most concentrated in Technology at 0.67% of assets, up from 0.61% a quarter earlier, followed by Consumer Discretionary and Industrials.
On the sell side, the largest reduction was Verizon, an estimated $42.5M trimmed.
- Simplex Trading's largest Q1 2022 buy was iShares 20+ Year Treasury Bond ETF: 652,921 shares worth $86.2M.
- Simplex Trading added most to Apple in Q1 2022, an estimated $179M increase.
- Simplex Trading's biggest Q1 2022 reduction was Verizon, cutting an estimated $42.5M.
- Simplex Trading fully exited State Street Financial Select Sector SPDR ETF in Q1 2022, selling an estimated $42.8M.
- Simplex Trading's ten largest holdings make up 37% of its $109B portfolio in Q1 2022.
- Simplex Trading opened 1,603 new positions and closed 1,637 in Q1 2022.
- Simplex Trading's portfolio value rose 10% quarter-over-quarter to $109B.
Based on Simplex Trading's 13F filing for Q1 2022, filed 2 May 2022.