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 | |
|---|---|---|---|---|---|---|
7751
PUT
Brookfield Infrastructure
BIPC
$5.01B
| $30K | ﹤0.01% |
600
-4,050
| -87% | -$185K |
|
7752
CALL
CACI
CACI
$14.8B
| $30K | ﹤0.01% |
100
-100
| -50% | -$27.6K |
|
7753
CALL
Crescent Capital BDC
CCAP
$417M
| $30K | ﹤0.01% |
1,700
+1,600
| +1,600% | +$28.6K |
|
7754
CALL
iShares Core Dividend ETF
DIVB
$1.8B
| $30K | ﹤0.01% |
900
-7,800
| -90% | -$325K |
|
7755
PUT
First Industrial Realty Trust
FR
$8.4B
| $30K | ﹤0.01% |
+500
| New | +$29.9K |
|
7756
GameStop
GME
$8.33B
| $30K | ﹤0.01% |
736
-8,108
| -92% | -$240K |
|
7757
CALL
Haverty Furniture Companies
HVT
$450M
| $30K | ﹤0.01% |
1,100
-6,900
| -86% | -$200K |
|
|
PPLI
7758
PUT
People Inc
PPLI
$3.01B
| $30K | ﹤0.01% |
+366
| New | +$35.6K |
|
7759
Comstock
LODE
$261M
| $30K | ﹤0.01% |
1,812
+670
| +59% | +$10.3K |
|
7760
PUT
Lyell Immunopharma
LYEL
$337M
| $30K | ﹤0.01% |
300
+100
| +50% | +$12.1K |
|
7761
PUT
Metropolitan Bank Holding Corp
MCB
$1.17B
| $30K | ﹤0.01% |
+300
| New | +$31.1K |
|
7762
CALL
Medallion Financial
MFIN
$262M
| $30K | ﹤0.01% |
3,600
-17,000
| -83% | -$131K |
|
|
LUXE
7763
PUT
LuxExperience B.V.
LUXE
$1.04B
| $30K | ﹤0.01% |
2,500
+2,300
| +1,150% | +$34.9K |
|
7764
Otter Tail
OTTR
$3.9B
| $30K | ﹤0.01% |
481
-1,664
| -78% | -$104K |
|
7765
PUT
Precigen
PGEN
$2.32B
| $30K | ﹤0.01% |
14,500
-20,800
| -59% | -$50.6K |
|
7766
Avita Medical
RCEL
$248M
| $30K | ﹤0.01% |
+3,597
| New | +$33.2K |
|
7767
CALL
Red Robin
RRGB
$183M
| $30K | ﹤0.01% |
1,800
-4,100
| -69% | -$66.2K |
|
7768
PUT
Revolution Medicines
RVMD
$43.3B
| $30K | ﹤0.01% |
1,200
-1,300
| -52% | -$28.3K |
|
7769
CALL
Silicon Laboratories
SLAB
$7.28B
| $30K | ﹤0.01% |
200
-3,900
| -95% | -$623K |
|
|
TGI
7770
DELISTED
Triumph Group
TGI
| $30K | ﹤0.01% |
1,215
-1,823
| -60% | -$40.5K |
|
7771
CALL
Trinity Capital Inc.
TRIN
$1.75B
| $30K | ﹤0.01% |
1,600
-6,700
| -81% | -$120K |
|
7772
PUT
VolitionRx Ltd
VNRX
$7.6M
| $30K | ﹤0.01% |
510
-1,065
| -68% | -$60.4K |
|
7773
Voya Financial
VOYA
$9.16B
| $30K | ﹤0.01% |
456
-1,070
| -70% | -$73K |
|
7774
PUT
Virtus Newfleet Short Duration High Yield Bond ETF
VSHY
$31.7M
| $30K | ﹤0.01% |
1,000
+700
| +233% | +$16.5K |
|
7775
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
$142M
| $30K | ﹤0.01% |
+75
| New | +$27.6K |
|
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 1,602 new positions and adding to 4,440 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 1,602 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.