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 | |
|---|---|---|---|---|---|---|
1601
PUT
GFL Environmental
GFL
$14.3B
| $3.33M | ﹤0.01% |
102,500
+60,100
| +142% | +$1.88M |
|
1602
Invesco Solar ETF
TAN
$1.47B
| $3.33M | ﹤0.01% |
44,155
+26,885
| +156% | +$1.86M |
|
1603
CALL
Quanta Services
PWR
$93.9B
| $3.33M | ﹤0.01% |
25,300
-18,000
| -42% | -$2M |
|
1604
CALL
Royalty Pharma
RPRX
$26.1B
| $3.33M | ﹤0.01% |
85,400
+24,200
| +40% | +$950K |
|
1605
CALL
Grab
GRAB
$13.5B
| $3.31M | ﹤0.01% |
946,900
+204,500
| +28% | +$1.03M |
|
1606
CALL
Northern Oil and Gas
NOG
$2.3B
| $3.31M | ﹤0.01% |
117,300
+46,300
| +65% | +$1.14M |
|
|
Y
1607
CALL
DELISTED
Alleghany Corp
Y
| $3.3M | ﹤0.01% |
3,900
+3,700
| +1,850% | +$2.56M |
|
1608
CALL
Boston Beer
SAM
$1.88B
| $3.3M | ﹤0.01% |
8,500
-4,400
| -34% | -$1.83M |
|
|
LAC
1609
DELISTED
Lithium Americas Corp. Common Shares
LAC
| $3.3M | ﹤0.01% |
85,779
+38,799
| +83% | +$1.1M |
|
1610
CALL
Bloomin' Brands
BLMN
$680M
| $3.3M | ﹤0.01% |
150,400
+22,400
| +18% | +$483K |
|
1611
PUT
Equifax
EFX
$20.3B
| $3.29M | ﹤0.01% |
13,900
+1,900
| +16% | +$448K |
|
1612
PUT
PVH
PVH
$3.71B
| $3.29M | ﹤0.01% |
43,000
+15,400
| +56% | +$1.43M |
|
1613
iShares JPMorgan USD Emerging Markets Bond ETF
EMB
$14.9B
| $3.29M | ﹤0.01% |
+33,692
| New | +$3.41M |
|
1614
PUT
VF Corp
VFC
$6.68B
| $3.29M | ﹤0.01% |
57,800
-24,400
| -30% | -$1.51M |
|
1615
CALL
Rayonier
RYN
$6.49B
| $3.26M | ﹤0.01% |
87,517
+41,003
| +88% | +$1.46M |
|
1616
CALL
Olin
OLN
$2.64B
| $3.26M | ﹤0.01% |
62,400
+17,300
| +38% | +$885K |
|
1617
PUT
Vistra
VST
$55.1B
| $3.26M | ﹤0.01% |
140,100
-49,900
| -26% | -$1.11M |
|
1618
CALL
Corsair Gaming
CRSR
$1.05B
| $3.25M | ﹤0.01% |
153,800
-233,400
| -60% | -$4.87M |
|
1619
CALL
Park Hotels & Resorts
PK
$2.97B
| $3.25M | ﹤0.01% |
166,500
+3,800
| +2% | +$71.3K |
|
1620
CALL
Synaptics
SYNA
$4.41B
| $3.25M | ﹤0.01% |
16,300
+4,200
| +35% | +$932K |
|
1621
CALL
GrowGeneration
GRWG
$82.9M
| $3.25M | ﹤0.01% |
352,900
+201,300
| +133% | +$1.81M |
|
1622
CALL
Boyd Gaming
BYD
$6.47B
| $3.25M | ﹤0.01% |
49,400
+32,900
| +199% | +$2.14M |
|
|
1623
PUT
Boyd Gaming
BYD
$6.47B
| $3.25M | ﹤0.01% |
49,400
+24,100
| +95% | +$1.57M |
|
1624
CALL
Celldex Therapeutics
CLDX
$2.77B
| $3.25M | ﹤0.01% |
95,300
+45,600
| +92% | +$1.46M |
|
1625
CALL
Alcon
ALC
$33.1B
| $3.24M | ﹤0.01% |
40,900
+10,600
| +35% | +$819K |
|
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.