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 | |
|---|---|---|---|---|---|---|
|
AEL
5676
CALL
DELISTED
American Equity Investment Life Holding Company
AEL
| $139K | ﹤0.01% |
3,500
+3,000
| +600% | +$121K |
|
|
MYOV
5677
CALL
DELISTED
Myovant Sciences Ltd.
MYOV
| $139K | ﹤0.01% |
10,500
+6,900
| +192% | +$92.5K |
|
|
ATHX
5678
DELISTED
Athersys, Inc. Common Stock
ATHX
| $139K | ﹤0.01% |
+9,207
| New | +$193K |
|
5679
InfraCap MLP ETF
AMZA
$470M
| $138K | ﹤0.01% |
+4,581
| New | +$134K |
|
|
DCH
5680
CALL
Dauch Corp
DCH
$1.34B
| $138K | ﹤0.01% |
17,900
+1,600
| +10% | +$13.6K |
|
|
CKPT
5681
PUT
DELISTED
Checkpoint Therapeutics
CKPT
| $138K | ﹤0.01% |
7,820
+6,100
| +355% | +$131K |
|
5682
Cleveland-Cliffs
CLF
$6.57B
| $138K | ﹤0.01% |
4,314
-505,442
| -99% | -$11.5M |
|
5683
Medallion Financial
MFIN
$229M
| $138K | ﹤0.01% |
16,254
-6,382
| -28% | -$49.3K |
|
5684
PUT
National Grid
NGG
$80.4B
| $138K | ﹤0.01% |
2,001
-27,903
| -93% | -$1.85M |
|
5685
PUT
Navitas Semiconductor
NVTS
$2.84B
| $138K | ﹤0.01% |
13,500
-18,900
| -58% | -$194K |
|
5686
PUT
Tronox
TROX
$932M
| $138K | ﹤0.01% |
7,000
+4,300
| +159% | +$93.3K |
|
|
VXRT
5687
DELISTED
Vaxart
VXRT
| $138K | ﹤0.01% |
27,515
-2,646
| -9% | -$13.4K |
|
|
SUNL
5688
CALL
DELISTED
Sunlight Financial Holdings, Inc.
SUNL
| $138K | ﹤0.01% |
1,375
-3,480
| -72% | -$270K |
|
|
EPAY
5689
DELISTED
Bottomline Technologies Inc
EPAY
| $138K | ﹤0.01% |
+2,441
| New | +$138K |
|
5690
CALL
Frontdoor
FTDR
$5.1B
| $137K | ﹤0.01% |
4,600
+4,100
| +820% | +$137K |
|
5691
PUT
Jackson Financial
JXN
$8.53B
| $137K | ﹤0.01% |
3,100
-1,000
| -24% | -$41.7K |
|
5692
KB Financial Group
KB
$41.4B
| $137K | ﹤0.01% |
+2,813
| New | +$139K |
|
5693
PUT
Live Oak Bancshares
LOB
$1.98B
| $137K | ﹤0.01% |
2,700
+2,500
| +1,250% | +$160K |
|
5694
CALL
CarParts.com
PRTS
$43.7M
| $137K | ﹤0.01% |
2,050
-70
| -3% | -$6.03K |
|
5695
CALL
Robert Half
RHI
$3.87B
| $137K | ﹤0.01% |
1,200
-7,300
| -86% | -$842K |
|
5696
PUT
UGI
UGI
$7.74B
| $137K | ﹤0.01% |
3,800
+1,300
| +52% | +$52K |
|
5697
CALL
BBVA Argentina
BBAR
$3.87B
| $136K | ﹤0.01% |
38,400
-4,700
| -11% | -$15.3K |
|
5698
CALL
e.l.f. Beauty
ELF
$4.89B
| $136K | ﹤0.01% |
5,300
-26,300
| -83% | -$716K |
|
5699
CALL
Empire State Realty Trust
ESRT
$872M
| $136K | ﹤0.01% |
13,900
+3,400
| +32% | +$32K |
|
5700
PUT
Knight Transportation
KNX
$11.3B
| $136K | ﹤0.01% |
2,700
-13,800
| -84% | -$761K |
|
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.