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 | Miscellaneous | 97.72% |
| 2 | Technology | 0.67% |
| 3 | Consumer Discretionary | 0.38% |
| 4 | Industrials | 0.24% |
| 5 | Healthcare | 0.22% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1476
PUT
Tapestry
TPR
$24.4B
| $3.85M | ﹤0.01% |
103,500
-56,800
| -35% | -$2.18M |
|
1477
PUT
ITT
ITT
$18.3B
| $3.84M | ﹤0.01% |
+51,100
| New | +$4.51M |
|
1478
PUT
Encompass Health
EHC
$12B
| $3.83M | ﹤0.01% |
67,752
-5,028
| -7% | -$263K |
|
1479
CALL
Concentrix
CNXC
$1.96B
| $3.83M | ﹤0.01% |
23,000
+16,100
| +233% | +$3.06M |
|
1480
CALL
L3Harris
LHX
$47.8B
| $3.83M | ﹤0.01% |
15,400
+8,400
| +120% | +$1.96M |
|
1481
CALL
Keysight
KEYS
$55.7B
| $3.82M | ﹤0.01% |
24,200
-25,800
| -52% | -$4.3M |
|
1482
CALL
Icon
ICLR
$12.7B
| $3.82M | ﹤0.01% |
15,700
+10,200
| +185% | +$2.56M |
|
1483
PUT
Service Corp International
SCI
$11.2B
| $3.82M | ﹤0.01% |
58,000
+50,500
| +673% | +$3.18M |
|
1484
FedEx
FDX
$76.3B
| $3.81M | ﹤0.01% |
16,446
+13,459
| +451% | +$3.16M |
|
1485
Fortinet
FTNT
$115B
| $3.81M | ﹤0.01% |
55,680
-67,265
| -55% | -$4.18M |
|
1486
PUT
FuboTV Inc
FUBO
$340M
| $3.8M | ﹤0.01% |
48,242
-8,150
| -14% | -$951K |
|
1487
PUT
Middleby
MIDD
$5.05B
| $3.79M | ﹤0.01% |
23,100
-9,400
| -29% | -$1.71M |
|
1488
iShares 1-3 Year Treasury Bond ETF
SHY
$26.2B
| $3.78M | ﹤0.01% |
+45,400
| New | +$3.84M |
|
1489
PUT
Amplify Junior Silver Miners ETF
SILJ
$4.16B
| $3.78M | ﹤0.01% |
308,300
+28,900
| +10% | +$373K |
|
1490
PUT
Krispy Kreme
DNUT
$586M
| $3.77M | ﹤0.01% |
254,000
+220,000
| +647% | +$3.3M |
|
|
GGPI
1491
PUT
DELISTED
Gores Guggenheim, Inc. Class A Common Stock
GGPI
| $3.77M | ﹤0.01% |
331,400
+35,700
| +12% | +$396K |
|
1492
CALL
Guardant Health
GH
$21.7B
| $3.76M | ﹤0.01% |
56,800
+18,600
| +49% | +$1.27M |
|
1493
PUT
NovoCure
NVCR
$2.09B
| $3.76M | ﹤0.01% |
45,400
+1,600
| +4% | +$118K |
|
1494
CALL
Banco Bradesco
BBD
$36.7B
| $3.76M | ﹤0.01% |
963,347
+392,876
| +69% | +$1.44M |
|
1495
Cooper Companies
COO
$13.6B
| $3.76M | ﹤0.01% |
+36,016
| New | +$3.63M |
|
|
CLR
1496
CALL
DELISTED
CONTINENTAL RESOURCES INC.
CLR
| $3.75M | ﹤0.01% |
61,200
-7,500
| -11% | -$416K |
|
1497
PUT
Ambarella
AMBA
$2.78B
| $3.75M | ﹤0.01% |
35,700
-1,200
| -3% | -$153K |
|
1498
CALL
Arbor Realty Trust
ABR
$979M
| $3.74M | ﹤0.01% |
219,400
+72,500
| +49% | +$1.27M |
|
1499
CALL
Agilent Technologies
A
$42.5B
| $3.73M | ﹤0.01% |
28,200
-22,800
| -45% | -$3.14M |
|
1500
Regeneron Pharmaceuticals
REGN
$85.2B
| $3.73M | ﹤0.01% |
+5,339
| New | +$3.38M |
|
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's Q1 2022 filing shows 1,600 new, 4,440 increased, 4,085 reduced and 1,638 closed positions. Its largest new stake was iShares 20+ Year Treasury Bond ETF: 652,921 shares worth $86.2M. The largest sale was State Street Financial Select Sector SPDR ETF, an estimated $42.8M.
By sector, the portfolio is most concentrated in Miscellaneous at 98% of assets, up from 97% a quarter earlier, followed by Technology and Consumer Discretionary.
- 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 1,600 new positions and closed 1,638 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.