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 | |
|---|---|---|---|---|---|---|
3026
CALL
Tractor Supply
TSCO
$16.3B
| $910K | ﹤0.01% |
19,500
-17,000
| -47% | -$752K |
|
3027
PUT
XPO
XPO
$25B
| $910K | ﹤0.01% |
21,038
-23,225
| -52% | -$971K |
|
3028
CALL
United Natural Foods
UNFI
$3.01B
| $909K | ﹤0.01% |
22,000
-102,700
| -82% | -$4.2M |
|
|
VRNT
3029
CALL
DELISTED
Verint Systems
VRNT
| $909K | ﹤0.01% |
17,600
+15,300
| +665% | +$786K |
|
3030
Yext
YEXT
$501M
| $909K | ﹤0.01% |
132,003
+29,598
| +29% | +$226K |
|
|
HIBB
3031
PUT
DELISTED
Hibbett, Inc. Common Stock
HIBB
| $908K | ﹤0.01% |
20,500
+9,000
| +78% | +$487K |
|
3032
PUT
BlackLine
BL
$1.69B
| $907K | ﹤0.01% |
12,400
+500
| +4% | +$40.4K |
|
|
LEV
3033
CALL
DELISTED
The Lion Electric Company
LEV
| $906K | ﹤0.01% |
107,900
-21,800
| -17% | -$185K |
|
|
CRON
3034
Cronos Group
CRON
$1.05B
| $905K | ﹤0.01% |
232,848
+157,956
| +211% | +$575K |
|
3035
MPLX
MPLX
$59.5B
| $905K | ﹤0.01% |
27,285
+23,812
| +686% | +$769K |
|
3036
C4 Therapeutics
CCCC
$376M
| $903K | ﹤0.01% |
+37,246
| New | +$904K |
|
|
SJT
3037
CALL
San Juan Basin Royalty Trust
SJT
$117M
| $903K | ﹤0.01% |
103,000
+86,900
| +540% | +$608K |
|
3038
CALL
Intellia Therapeutics
NTLA
$1.5B
| $901K | ﹤0.01% |
12,400
+8,900
| +254% | +$754K |
|
3039
CALL
Century Aluminum
CENX
$4.57B
| $899K | ﹤0.01% |
34,200
+16,800
| +97% | +$354K |
|
3040
PUT
ICL Group
ICL
$6.81B
| $898K | ﹤0.01% |
74,400
+30,000
| +68% | +$318K |
|
|
SRG
3041
Seritage Growth Properties
SRG
$130M
| $898K | ﹤0.01% |
70,968
+40,933
| +136% | +$451K |
|
3042
CALL
Eldorado Gold
EGO
$8.31B
| $897K | ﹤0.01% |
80,100
-34,000
| -30% | -$348K |
|
3043
O'Reilly Automotive
ORLY
$72.4B
| $897K | ﹤0.01% |
19,650
-24,180
| -55% | -$1.08M |
|
|
VRE
3044
CALL
DELISTED
Veris Residential
VRE
| $897K | ﹤0.01% |
51,600
-47,900
| -48% | -$831K |
|
3045
PUT
KeyCorp
KEY
$24.3B
| $895K | ﹤0.01% |
40,000
-34,800
| -47% | -$865K |
|
3046
CALL
Cognex
CGNX
$10.3B
| $894K | ﹤0.01% |
11,600
+4,000
| +53% | +$274K |
|
3047
PUT
SL Green Realty
SLG
$3.88B
| $892K | ﹤0.01% |
11,000
-3,361
| -23% | -$265K |
|
|
PENG
3048
Penguin Solutions Inc
PENG
$2.76B
| $891K | ﹤0.01% |
34,523
+12,661
| +58% | +$357K |
|
3049
PUT
Equity Residential
EQR
$25.4B
| $890K | ﹤0.01% |
9,900
-45,600
| -82% | -$4.03M |
|
|
3050
CALL
O'Reilly Automotive
ORLY
$72.4B
| $890K | ﹤0.01% |
19,500
-19,500
| -50% | -$871K |
|
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.