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 | |
|---|---|---|---|---|---|---|
|
BPT
2776
DELISTED
BP Prudhoe Bay Royalty Trust
BPT
| $1.12M | ﹤0.01% |
74,943
+47,102
| +169% | +$452K |
|
2777
Stratasys
SSYS
$697M
| $1.12M | ﹤0.01% |
44,148
+39,540
| +858% | +$953K |
|
|
ESPR
2778
CALL
DELISTED
Esperion Therapeutics
ESPR
| $1.12M | ﹤0.01% |
241,200
+137,200
| +132% | +$589K |
|
2779
PUT
America Movil
AMX
$78.1B
| $1.12M | ﹤0.01% |
52,900
+32,100
| +154% | +$620K |
|
2780
CALL
CenterPoint Energy
CNP
$29.1B
| $1.12M | ﹤0.01% |
36,500
+8,000
| +28% | +$225K |
|
2781
PUT
TransUnion
TRU
$14.8B
| $1.12M | ﹤0.01% |
10,800
+10,500
| +3,500% | +$1.07M |
|
2782
CALL
Compass
COMP
$8.27B
| $1.11M | ﹤0.01% |
141,800
-55,800
| -28% | -$439K |
|
2783
CALL
Dover
DOV
$27.2B
| $1.11M | ﹤0.01% |
7,100
-10,300
| -59% | -$1.69M |
|
|
EQRX
2784
CALL
DELISTED
EQRx, Inc. Common Stock
EQRX
| $1.11M | ﹤0.01% |
269,300
+262,900
| +4,108% | +$1.14M |
|
2785
PUT
TETRA Technologies
TTI
$1.23B
| $1.11M | ﹤0.01% |
270,500
+241,600
| +836% | +$772K |
|
|
BBIG
2786
PUT
DELISTED
Vinco Ventures, Inc. Common Stock
BBIG
| $1.11M | ﹤0.01% |
25,527
-24,291
| -49% | -$969K |
|
2787
CALL
Fastenal
FAST
$54B
| $1.11M | ﹤0.01% |
37,400
-95,400
| -72% | -$2.67M |
|
2788
PUT
Boot Barn
BOOT
$4.55B
| $1.11M | ﹤0.01% |
11,700
-13,800
| -54% | -$1.31M |
|
2789
CALL
Pacific Biosciences
PACB
$422M
| $1.11M | ﹤0.01% |
121,700
+75,300
| +162% | +$867K |
|
2790
Align Technology
ALGN
$12B
| $1.11M | ﹤0.01% |
+2,538
| New | +$1.24M |
|
2791
CALL
Lightspeed Commerce
LSPD
$1.3B
| $1.11M | ﹤0.01% |
36,300
-151,700
| -81% | -$4.52M |
|
|
MAXN
2792
CALL
DELISTED
Maxeon Solar Technologies
MAXN
| $1.1M | ﹤0.01% |
762
+69
| +10% | +$79.4K |
|
2793
Methanex
MEOH
$4.32B
| $1.1M | ﹤0.01% |
20,225
-12,191
| -38% | -$596K |
|
|
AL
2794
CALL
DELISTED
Air Lease Corp
AL
| $1.1M | ﹤0.01% |
24,700
+8,000
| +48% | +$335K |
|
2795
PUT
Mercury Systems
MRCY
$6.2B
| $1.1M | ﹤0.01% |
17,100
-100
| -0.6% | -$5.94K |
|
2796
PUT
Suburban Propane Partners
SPH
$1.23B
| $1.1M | ﹤0.01% |
68,500
+29,800
| +77% | +$452K |
|
2797
PUT
United States Brent Oil Fund
BNO
$815M
| $1.1M | ﹤0.01% |
36,800
+28,600
| +349% | +$763K |
|
2798
Direxion Daily Regional Banks Bull 3X ETF
DPST
$451M
| $1.1M | ﹤0.01% |
2,595
+1,010
| +64% | +$528K |
|
2799
CALL
Invesco Equal Weight 0-30 Year Treasury ETF
GOVI
$1.22B
| $1.1M | ﹤0.01% |
33,700
-28,600
| -46% | -$1,000K |
|
2800
PUT
Western Union
WU
$2.57B
| $1.1M | ﹤0.01% |
58,700
+5,300
| +10% | +$98K |
|
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.