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 | |
|---|---|---|---|---|---|---|
|
DS
4201
CALL
DELISTED
Drive Shack Inc.
DS
| $385K | ﹤0.01% |
250,100
-198,700
| -44% | -$270K |
|
4202
CALL
Celularity
CELU
$22M
| $384K | ﹤0.01% |
4,410
-4,850
| -52% | -$291K |
|
4203
CALL
US Global Investors
GROW
$37.2M
| $384K | ﹤0.01% |
73,900
+69,400
| +1,542% | +$363K |
|
|
WSR
4204
DELISTED
Whitestone REIT
WSR
| $384K | ﹤0.01% |
+29,015
| New | +$333K |
|
4205
Palomar
PLMR
$3.79B
| $383K | ﹤0.01% |
5,994
+5,840
| +3,792% | +$332K |
|
|
TIGR
4206
CALL
UP Fintech Holding
TIGR
$858M
| $383K | ﹤0.01% |
78,300
-244,300
| -76% | -$1.1M |
|
|
AGEN
4207
CALL
Agenus
AGEN
$275M
| $382K | ﹤0.01% |
7,928
+2,451
| +45% | +$132K |
|
4208
CALL
Castor Maritime
CTRM
$18.3M
| $382K | ﹤0.01% |
20,800
+14,200
| +215% | +$219K |
|
|
NS
4209
PUT
DELISTED
NuStar Energy L.P.
NS
| $382K | ﹤0.01% |
26,500
+17,600
| +198% | +$284K |
|
|
FRGI
4210
DELISTED
Fiesta Restaurant Group, Inc.
FRGI
| $382K | ﹤0.01% |
51,115
+50,107
| +4,971% | +$480K |
|
|
ASRT
4211
CALL
DELISTED
Assertio
ASRT
| $381K | ﹤0.01% |
8,873
+6,506
| +275% | +$243K |
|
4212
Invesco DB Base Metals Fund
DBB
$305M
| $381K | ﹤0.01% |
+14,782
| New | +$356K |
|
4213
PUT
Eastman Chemical
EMN
$7.79B
| $381K | ﹤0.01% |
3,400
-3,000
| -47% | -$352K |
|
4214
TFI International
TFII
$12.1B
| $381K | ﹤0.01% |
3,578
+2,032
| +131% | +$207K |
|
|
CIM
4215
PUT
Chimera Investment
CIM
$1.06B
| $380K | ﹤0.01% |
10,533
+5,333
| +103% | +$212K |
|
|
MFA
4216
CALL
MFA Financial
MFA
$935M
| $380K | ﹤0.01% |
23,575
-19,150
| -45% | -$331K |
|
4217
PagerDuty
PD
$795M
| $380K | ﹤0.01% |
+11,143
| New | +$358K |
|
4218
Credicorp
BAP
$30.9B
| $379K | ﹤0.01% |
2,206
-1,268
| -36% | -$191K |
|
|
CIM
4219
Chimera Investment
CIM
$1.06B
| $379K | ﹤0.01% |
10,498
+142
| +1% | +$5.66K |
|
4220
CALL
JFrog
FROG
$9.26B
| $379K | ﹤0.01% |
14,100
-192,900
| -93% | -$4.88M |
|
4221
CALL
monday.com
MNDY
$3.68B
| $379K | ﹤0.01% |
2,400
-3,500
| -59% | -$658K |
|
4222
PUT
Seer Inc
SEER
$118M
| $379K | ﹤0.01% |
24,900
+7,600
| +44% | +$118K |
|
4223
CALL
Tronox
TROX
$981M
| $379K | ﹤0.01% |
19,200
-21,200
| -52% | -$460K |
|
|
LEAP
4224
DELISTED
Ribbit LEAP, Ltd.
LEAP
| $379K | ﹤0.01% |
+38,438
| New | +$380K |
|
4225
CALL
Advanced Energy
AEIS
$10.9B
| $378K | ﹤0.01% |
4,400
+500
| +13% | +$43.3K |
|
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.