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 | |
|---|---|---|---|---|---|---|
4276
American Well
AMWL
$182M
| $362K | ﹤0.01% |
4,308
-1,990
| -32% | -$168K |
|
4277
St. Joe Company
JOE
$3.57B
| $362K | ﹤0.01% |
+6,123
| New | +$317K |
|
|
TGB
4278
CALL
Trekor Metals
TGB
$2.46B
| $362K | ﹤0.01% |
158,100
+64,600
| +69% | +$131K |
|
4279
CALL
Tetra Tech
TTEK
$8.83B
| $362K | ﹤0.01% |
11,000
+10,000
| +1,000% | +$308K |
|
|
EGIO
4280
PUT
DELISTED
Edgio, Inc. Common Stock
EGIO
| $362K | ﹤0.01% |
1,738
-157
| -8% | -$26.2K |
|
4281
PUT
Golar LNG
GLNG
$4.82B
| $361K | ﹤0.01% |
14,600
+100
| +0.7% | +$1.65K |
|
4282
iShares Biotechnology ETF
IBB
$9.45B
| $361K | ﹤0.01% |
+2,776
| New | +$362K |
|
4283
Perdoceo Education
PRDO
$2.18B
| $361K | ﹤0.01% |
31,472
+20,721
| +193% | +$230K |
|
4284
Immersion
IMMR
$243M
| $360K | ﹤0.01% |
64,863
+48,362
| +293% | +$251K |
|
4285
Unum
UNM
$13.3B
| $360K | ﹤0.01% |
11,448
+5,343
| +88% | +$149K |
|
4286
CALL
H&R Block
HRB
$5.99B
| $359K | ﹤0.01% |
13,800
-28,000
| -67% | -$680K |
|
4287
CALL
Rigetti Computing
RGTI
$4.38B
| $359K | ﹤0.01% |
57,100
+57,000
| +57,000% | +$507K |
|
4288
PUT
Coeur Mining
CDE
$15B
| $358K | ﹤0.01% |
80,600
-19,300
| -19% | -$92K |
|
4289
Norfolk Southern
NSC
$75.4B
| $358K | ﹤0.01% |
+1,257
| New | +$346K |
|
4290
PUT
Radware
RDWR
$986M
| $358K | ﹤0.01% |
11,200
-66,700
| -86% | -$2.22M |
|
4291
PUT
Stem
STEM
$44.4M
| $358K | ﹤0.01% |
1,630
-735
| -31% | -$171K |
|
|
BBIG
4292
DELISTED
Vinco Ventures, Inc. Common Stock
BBIG
| $358K | ﹤0.01% |
+8,234
| New | +$328K |
|
|
TGR
4293
PUT
DELISTED
ISHARES TARGET DATE RETIREMENT INCOME ETF
TGR
| $358K | ﹤0.01% |
16,200
+12,400
| +326% | +$274K |
|
|
GOOD
4294
PUT
Gladstone Commercial Corp
GOOD
$623M
| $356K | ﹤0.01% |
16,200
+15,900
| +5,300% | +$357K |
|
4295
PUT
MidCap Financial Investment
MFIC
$801M
| $356K | ﹤0.01% |
27,000
+15,900
| +143% | +$211K |
|
4296
CALL
Rimini Street
RMNI
$460M
| $356K | ﹤0.01% |
61,400
+100
| +0.2% | +$525 |
|
4297
PUT
Penumbra
PEN
$12.6B
| $355K | ﹤0.01% |
+1,600
| New | +$356K |
|
4298
PUT
Sturm, Ruger & Co
RGR
$605M
| $355K | ﹤0.01% |
5,100
+100
| +2% | +$6.88K |
|
4299
Rogers Corp
ROG
$2.09B
| $355K | ﹤0.01% |
1,310
+747
| +133% | +$204K |
|
|
CNH
4300
CALL
CNH Industrial
CNH
$13.3B
| $355K | ﹤0.01% |
22,400
-57,341
| -72% | -$891K |
|
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.