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 | Miscellaneous | 97.72% |
| 2 | Technology | 0.67% |
| 3 | Consumer Discretionary | 0.38% |
| 4 | Industrials | 0.24% |
| 5 | Healthcare | 0.22% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
EXAS
1551
PUT
DELISTED
Exact Sciences
EXAS
| $3.53M | ﹤0.01% |
50,500
-11,900
| -19% | -$870K |
|
1552
Transocean
RIG
$6.53B
| $3.53M | ﹤0.01% |
772,137
+719,244
| +1,360% | +$2.74M |
|
1553
PUT
Sony
SONY
$143B
| $3.52M | ﹤0.01% |
171,500
-10,500
| -6% | -$228K |
|
1554
CALL
Kinross Gold
KGC
$36.6B
| $3.52M | ﹤0.01% |
598,400
-122,500
| -17% | -$683K |
|
1555
Opendoor
OPEN
$3.06B
| $3.51M | ﹤0.01% |
419,442
+179,568
| +75% | +$1.67M |
|
1556
CALL
Lincoln National
LNC
$8.71B
| $3.51M | ﹤0.01% |
53,700
+3,000
| +6% | +$205K |
|
1557
PUT
On Holding
ONON
$9.35B
| $3.51M | ﹤0.01% |
139,000
-9,200
| -6% | -$245K |
|
1558
CALL
Consolidated Edison
ED
$39.7B
| $3.5M | ﹤0.01% |
37,000
+18,700
| +102% | +$1.62M |
|
|
MMP
1559
PUT
DELISTED
Magellan Midstream Partners, L.P.
MMP
| $3.5M | ﹤0.01% |
71,400
+53,700
| +303% | +$2.6M |
|
1560
PUT
Tencent Music
TME
$13.5B
| $3.49M | ﹤0.01% |
717,400
+71,600
| +11% | +$403K |
|
1561
CALL
Camping World
CWH
$444M
| $3.49M | ﹤0.01% |
124,900
+64,000
| +105% | +$2.1M |
|
|
STOR
1562
CALL
DELISTED
STORE Capital Corporation
STOR
| $3.49M | ﹤0.01% |
119,400
+44,800
| +60% | +$1.38M |
|
1563
PUT
Sonos
SONO
$1.82B
| $3.48M | ﹤0.01% |
123,500
-55,800
| -31% | -$1.48M |
|
|
BTWN
1564
CALL
DELISTED
Bridgetown Holdings Limited Class A Ordinary Shares
BTWN
| $3.48M | ﹤0.01% |
353,400
-98,100
| -22% | -$964K |
|
1565
PUT
WEC Energy
WEC
$34.5B
| $3.48M | ﹤0.01% |
34,900
+6,200
| +22% | +$585K |
|
1566
CALL
Alexandria Real Estate Equities
ARE
$9.06B
| $3.48M | ﹤0.01% |
17,300
-10,500
| -38% | -$2.05M |
|
1567
CALL
Credit Acceptance
CACC
$6.28B
| $3.47M | ﹤0.01% |
6,300
+1,600
| +34% | +$872K |
|
1568
PUT
Old Dominion Freight Line
ODFL
$38.5B
| $3.46M | ﹤0.01% |
23,200
+22,200
| +2,220% | +$3.46M |
|
1569
CALL
dLocal
DLO
$4.57B
| $3.46M | ﹤0.01% |
110,800
+82,300
| +289% | +$2.48M |
|
|
TBCH
1570
CALL
Turtle Beach Corp
TBCH
$224M
| $3.46M | ﹤0.01% |
162,700
-19,000
| -10% | -$398K |
|
|
MNDT
1571
PUT
DELISTED
Mandiant, Inc. Common Stock
MNDT
| $3.46M | ﹤0.01% |
155,200
-86,700
| -36% | -$1.6M |
|
1572
CALL
Regions Financial
RF
$25.9B
| $3.45M | ﹤0.01% |
155,200
-43,200
| -22% | -$1.02M |
|
1573
PUT
Murphy Oil
MUR
$5.22B
| $3.45M | ﹤0.01% |
85,500
+72,000
| +533% | +$2.47M |
|
|
HIMX
1574
PUT
Himax Technologies
HIMX
$2.39B
| $3.45M | ﹤0.01% |
317,500
-97,700
| -24% | -$1.11M |
|
|
EXE
1575
PUT
Expand Energy Corp
EXE
$22.7B
| $3.44M | ﹤0.01% |
39,600
+6,100
| +18% | +$448K |
|
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's Q1 2022 filing shows 1,600 new, 4,440 increased, 4,085 reduced and 1,638 closed positions. Its largest new stake was iShares 20+ Year Treasury Bond ETF: 652,921 shares worth $86.2M. The largest sale was State Street Financial Select Sector SPDR ETF, an estimated $42.8M.
By sector, the portfolio is most concentrated in Miscellaneous at 98% of assets, up from 97% a quarter earlier, followed by Technology and Consumer Discretionary.
- 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 1,600 new positions and closed 1,638 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.