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 | |
|---|---|---|---|---|---|---|
2476
CALL
CS Disco
LAW
$226M
| $1.41M | ﹤0.01% |
41,600
-6,600
| -14% | -$217K |
|
|
MAPS
2477
DELISTED
WM TECHNOLOGY INC A
MAPS
| $1.41M | ﹤0.01% |
180,739
+54,325
| +43% | +$308K |
|
|
SMAR
2478
PUT
DELISTED
Smartsheet Inc.
SMAR
| $1.41M | ﹤0.01% |
25,800
+22,800
| +760% | +$1.3M |
|
2479
CALL
HCI Group
HCI
$2.28B
| $1.41M | ﹤0.01% |
20,700
-18,100
| -47% | -$1.24M |
|
2480
CALL
Offerpad Solutions
OPAD
$19M
| $1.41M | ﹤0.01% |
1,871
+487
| +35% | +$331K |
|
2481
Vroom Inc
VRM
$36.9M
| $1.41M | ﹤0.01% |
+6,627
| New | +$3.14M |
|
2482
CALL
Melco Resorts & Entertainment
MLCO
$2.1B
| $1.41M | ﹤0.01% |
184,400
-78,900
| -30% | -$759K |
|
|
RSX
2483
DELISTED
VanEck Russia ETF
RSX
| $1.41M | ﹤0.01% |
+248,920
| New | +$4.2M |
|
2484
PUT
DigitalBridge
DBRG
$2.94B
| $1.4M | ﹤0.01% |
48,775
+8,800
| +22% | +$256K |
|
2485
Travelers Companies
TRV
$80.8B
| $1.4M | ﹤0.01% |
7,685
+5,541
| +258% | +$950K |
|
2486
ProShares UltraPro Short S&P 500
SPXU
$436M
| $1.4M | ﹤0.01% |
+5,245
| New | +$1.54M |
|
2487
PUT
Scotiabank
BNS
$106B
| $1.4M | ﹤0.01% |
19,500
+6,100
| +46% | +$442K |
|
2488
CALL
Knight Transportation
KNX
$11.8B
| $1.4M | ﹤0.01% |
27,700
-35,400
| -56% | -$1.95M |
|
2489
CALL
Babcock & Wilcox
BW
$1.43B
| $1.4M | ﹤0.01% |
171,100
+79,300
| +86% | +$618K |
|
2490
Privia Health
PRVA
$3.21B
| $1.4M | ﹤0.01% |
+52,263
| New | +$1.23M |
|
2491
CALL
Vipshop
VIPS
$6.84B
| $1.4M | ﹤0.01% |
245,100
+48,100
| +24% | +$424K |
|
2492
CALL
Enovix
ENVX
$862M
| $1.4M | ﹤0.01% |
111,771
+45,028
| +67% | +$632K |
|
2493
PUT
Fluor
FLR
$7.29B
| $1.39M | ﹤0.01% |
48,600
-6,700
| -12% | -$162K |
|
2494
CALL
LivePerson
LPSN
$18.9M
| $1.39M | ﹤0.01% |
3,807
+3,760
| +8,000% | +$1.52M |
|
2495
Canadian Pacific Kansas City
CP
$82B
| $1.39M | ﹤0.01% |
+16,877
| New | +$1.27M |
|
|
TGH
2496
PUT
DELISTED
Textainer Group Holdings limited
TGH
| $1.39M | ﹤0.01% |
36,600
+8,700
| +31% | +$329K |
|
2497
PUT
Blink Charging
BLNK
$75.2M
| $1.39M | ﹤0.01% |
52,600
+41,600
| +378% | +$978K |
|
2498
Virtu Financial
VIRT
$5.2B
| $1.39M | ﹤0.01% |
+37,350
| New | +$1.23M |
|
2499
PUT
Gogo Inc
GOGO
$515M
| $1.39M | ﹤0.01% |
72,900
-43,300
| -37% | -$633K |
|
2500
Vertex Pharmaceuticals
VRTX
$121B
| $1.39M | ﹤0.01% |
5,312
-8,253
| -61% | -$1.96M |
|
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.