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 | |
|---|---|---|---|---|---|---|
|
CD
3901
CALL
DELISTED
Chindata Group Holdings Limited American Depositary Shares
CD
| $475K | ﹤0.01% |
75,300
+28,100
| +60% | +$155K |
|
|
CEQP
3902
PUT
DELISTED
Crestwood Equity Partners LP
CEQP
| $475K | ﹤0.01% |
15,900
-2,300
| -13% | -$67.5K |
|
3903
Teucrium Soybean Fund
SOYB
$62.3M
| $474K | ﹤0.01% |
17,749
+13,234
| +293% | +$343K |
|
3904
PUT
Ingersoll Rand
IR
$33.9B
| $473K | ﹤0.01% |
9,400
+7,100
| +309% | +$380K |
|
3905
CALL
Smartbird Inc
BIRD
$21M
| $472K | ﹤0.01% |
3,930
+3,275
| +500% | +$644K |
|
3906
PUT
LKQ Corp
LKQ
$6.77B
| $472K | ﹤0.01% |
10,400
+9,600
| +1,200% | +$491K |
|
3907
CALL
Solid Power
SLDP
$475M
| $472K | ﹤0.01% |
54,500
-99,900
| -65% | -$775K |
|
3908
CALL
Urban Outfitters
URBN
$6.44B
| $472K | ﹤0.01% |
18,800
+1,200
| +7% | +$32.8K |
|
|
AGCB
3909
CALL
DELISTED
Altimeter Growth Corp 2
AGCB
| $472K | ﹤0.01% |
48,100
+1,300
| +3% | +$12.7K |
|
3910
CALL
Brookfield
BN
$104B
| $471K | ﹤0.01% |
47,872
-28,204
| -37% | -$843K |
|
3911
CALL
Cedar Fair
FUN
$1.91B
| $471K | ﹤0.01% |
8,600
-75,500
| -90% | -$4.04M |
|
|
NMTR
3912
CALL
DELISTED
9 Meters Biopharma
NMTR
| $471K | ﹤0.01% |
39,365
+26,435
| +204% | +$361K |
|
|
FYBR
3913
CALL
DELISTED
Frontier Communications
FYBR
| $470K | ﹤0.01% |
17,000
-15,300
| -47% | -$421K |
|
3914
PUT
Qfin Holdings
QFIN
$1.66B
| $470K | ﹤0.01% |
30,600
-12,700
| -29% | -$237K |
|
3915
PUT
Reinsurance Group of America
RGA
$15.9B
| $470K | ﹤0.01% |
4,300
+1,200
| +39% | +$133K |
|
3916
PUT
Sociedad Química y Minera de Chile
SQM
$19.1B
| $470K | ﹤0.01% |
5,500
-14,400
| -72% | -$922K |
|
3917
CALL
Opko Health
OPK
$1.25B
| $469K | ﹤0.01% |
136,400
-161,500
| -54% | -$570K |
|
3918
PUT
Rollins
ROL
$18.8B
| $469K | ﹤0.01% |
13,400
+10,700
| +396% | +$347K |
|
3919
CALL
TriplePoint Venture Growth BDC
TPVG
$185M
| $469K | ﹤0.01% |
26,900
+21,300
| +380% | +$361K |
|
|
ML
3920
CALL
DELISTED
MoneyLion Inc.
ML
| $469K | ﹤0.01% |
6,233
-1,424
| -19% | -$111K |
|
|
CORZ
3921
PUT
DELISTED
Core Scientific, Inc. Common Stock
CORZ
| $469K | ﹤0.01% |
57,000
+26,800
| +89% | +$237K |
|
|
PNNT
3922
CALL
Pennant Park Investment Corp
PNNT
$221M
| $468K | ﹤0.01% |
60,200
+30,700
| +104% | +$227K |
|
|
VLD
3923
CALL
DELISTED
Velo3D, Inc.
VLD
| $468K | ﹤0.01% |
1,437
+528
| +58% | +$133K |
|
3924
PUT
St. Joe Company
JOE
$3.57B
| $467K | ﹤0.01% |
7,900
+4,400
| +126% | +$228K |
|
3925
PUT
O-I Glass
OI
$1.39B
| $467K | ﹤0.01% |
35,500
+19,600
| +123% | +$256K |
|
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.