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 | |
|---|---|---|---|---|---|---|
|
BKI
2926
CALL
DELISTED
Black Knight, Inc. Common Stock
BKI
| $997K | ﹤0.01% |
17,200
+16,400
| +2,050% | +$1.08M |
|
2927
PACCAR
PCAR
$69.6B
| $996K | ﹤0.01% |
+16,971
| New | +$1.04M |
|
|
2928
CALL
PACCAR
PCAR
$69.6B
| $995K | ﹤0.01% |
16,950
-60,150
| -78% | -$3.67M |
|
|
PLYA
2929
CALL
DELISTED
Playa Hotels & Resorts
PLYA
| $995K | ﹤0.01% |
115,100
-6,400
| -5% | -$52.8K |
|
2930
CALL
Associated Banc-Corp
ASB
$5.81B
| $994K | ﹤0.01% |
43,700
+35,000
| +402% | +$847K |
|
2931
CALL
OppFi
OPFI
$770M
| $994K | ﹤0.01% |
289,800
+43,700
| +18% | +$185K |
|
2932
Lincoln National
LNC
$7.91B
| $993K | ﹤0.01% |
+15,205
| New | +$1.04M |
|
2933
CALL
Jefferies Financial Group
JEF
$12.9B
| $992K | ﹤0.01% |
31,589
+20,920
| +196% | +$710K |
|
2934
CALL
Performance Food Group
PFGC
$17.5B
| $992K | ﹤0.01% |
19,500
+9,400
| +93% | +$461K |
|
2935
PUT
Bread Financial
BFH
$4.21B
| $990K | ﹤0.01% |
52,500
-6,000
| -10% | -$393K |
|
2936
Ginkgo Bioworks
DNA
$481M
| $990K | ﹤0.01% |
+6,145
| New | +$1.2M |
|
2937
PUT
Host Hotels & Resorts
HST
$16.8B
| $990K | ﹤0.01% |
51,000
-43,200
| -46% | -$780K |
|
|
ENLC
2938
CALL
DELISTED
ENLINK MIDSTREAM, LLC
ENLC
| $990K | ﹤0.01% |
102,600
+56,500
| +123% | +$481K |
|
2939
PUT
Allison Transmission
ALSN
$10.1B
| $989K | ﹤0.01% |
25,200
+23,800
| +1,700% | +$937K |
|
2940
CALL
Masco
MAS
$16B
| $989K | ﹤0.01% |
19,400
+14,800
| +322% | +$880K |
|
2941
CALL
NMI Holdings
NMIH
$3.25B
| $989K | ﹤0.01% |
48,000
+43,700
| +1,016% | +$1.02M |
|
|
SAIL
2942
DELISTED
SailPoint Technologies Holdings, Inc. Common Stock
SAIL
| $989K | ﹤0.01% |
19,340
-3,576
| -16% | -$153K |
|
2943
ProShares Trust UltraShort Lehman 7-10 Year Treasury
PST
$10.6M
| $988K | ﹤0.01% |
54,236
+25,904
| +91% | +$446K |
|
|
REGI
2944
CALL
DELISTED
Renewable Energy Group, Inc.
REGI
| $988K | ﹤0.01% |
16,300
-4,200
| -20% | -$203K |
|
2945
CALL
ACV Auctions
ACVA
$1.35B
| $987K | ﹤0.01% |
66,700
+61,400
| +1,158% | +$854K |
|
2946
CALL
Taboola.com
TBLA
$1.32B
| $987K | ﹤0.01% |
191,400
+10,300
| +6% | +$63.5K |
|
|
AMRS
2947
CALL
DELISTED
Amyris Inc.
AMRS
| $987K | ﹤0.01% |
226,400
-101,700
| -31% | -$456K |
|
2948
PUT
Rithm Capital
RITM
$5.09B
| $986K | ﹤0.01% |
89,800
-21,600
| -19% | -$229K |
|
2949
Molson Coors Class B
TAP
$7.68B
| $985K | ﹤0.01% |
18,467
+13,667
| +285% | +$689K |
|
2950
PUT
Fortuna Silver Mines
FSM
$2.59B
| $983K | ﹤0.01% |
258,200
+80,900
| +46% | +$306K |
|
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.