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
|
+$286M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$82.3M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$72.6M |
| 4 |
Alphabet (Google) Class C
GOOG
|
+$64.2M |
| 5 |
Intel
INTC
|
+$52.9M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$51.5M |
| 2 |
iShares Silver Trust
SLV
|
+$41.8M |
| 3 |
Ford
F
|
+$26.3M |
| 4 |
United Airlines
UAL
|
+$22.7M |
| 5 |
ExxonMobil
XOM
|
+$22.3M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.84% |
| 2 | Communication Services | 0.32% |
| 3 | Consumer Discretionary | 0.32% |
| 4 | Financials | 0.28% |
| 5 | Healthcare | 0.2% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
951
PUT
Peloton Interactive
PTON
$2.63B
| $7.06M | 0.01% |
769,500
-583,400
| -43% | -$9.36M |
|
952
Cameco
CCJ
$38.3B
| $7.02M | 0.01% |
333,947
-133,721
| -29% | -$3.37M |
|
953
CALL
British American Tobacco
BTI
$132B
| $7.01M | 0.01% |
163,300
-130,300
| -44% | -$5.59M |
|
954
CALL
Ambarella
AMBA
$2.99B
| $7M | 0.01% |
107,000
+74,600
| +230% | +$6.01M |
|
955
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
$27B
| $6.99M | 0.01% |
16,897
+11,271
| +200% | +$5.09M |
|
956
PUT
International Flavors & Fragrances
IFF
$19.4B
| $6.97M | 0.01% |
58,500
+23,800
| +69% | +$2.97M |
|
957
CALL
Norfolk Southern
NSC
$78.8B
| $6.96M | 0.01% |
30,600
+10,900
| +55% | +$2.68M |
|
958
CALL
Invesco Aerospace & Defense ETF
PPA
$8.27B
| $6.95M | 0.01% |
92,800
+13,300
| +17% | +$967K |
|
959
CALL
Invesco CurrencyShares Japanese Yen Trust
FXY
$423M
| $6.95M | 0.01% |
100,700
+39,900
| +66% | +$2.88M |
|
960
PUT
Welltower
WELL
$178B
| $6.94M | 0.01% |
84,300
+1,000
| +1% | +$89K |
|
961
PUT
Air Products & Chemicals
APD
$66.3B
| $6.92M | 0.01% |
28,800
+4,600
| +19% | +$1.12M |
|
|
KRTX
962
CALL
DELISTED
Karuna Therapeutics, Inc. Common Stock
KRTX
| $6.91M | 0.01% |
54,600
+41,300
| +311% | +$4.75M |
|
963
PUT
Bank of Montreal
BMO
$125B
| $6.91M | 0.01% |
71,800
-40,400
| -36% | -$4.29M |
|
964
CALL
Tilray
TLRY
$479M
| $6.9M | 0.01% |
221,210
-94,730
| -30% | -$4.48M |
|
|
HIMX
965
CALL
Himax Technologies
HIMX
$2.2B
| $6.89M | 0.01% |
921,700
-204,100
| -18% | -$1.88M |
|
966
PUT
Sunrun
RUN
$2.37B
| $6.88M | 0.01% |
294,600
+1,300
| +0.4% | +$31.2K |
|
967
CALL
Virgin Galactic
SPCE
$320M
| $6.87M | 0.01% |
57,050
+2,725
| +5% | +$395K |
|
968
PUT
Elevance Health
ELV
$81.9B
| $6.85M | 0.01% |
14,200
-12,900
| -48% | -$6.38M |
|
969
CALL
Corteva
CTVA
$59.7B
| $6.84M | 0.01% |
126,400
-40,100
| -24% | -$2.33M |
|
970
PUT
Vanguard Consumer Discretionary ETF
VCR
$5.84B
| $6.84M | 0.01% |
25,500
+2,400
| +10% | +$627K |
|
971
PUT
Stanley Black & Decker
SWK
$14.2B
| $6.84M | 0.01% |
65,200
+9,000
| +16% | +$1.11M |
|
|
FISV
972
PUT
Fiserv Inc
FISV
$27.2B
| $6.83M | 0.01% |
76,800
-200
| -0.3% | -$19.4K |
|
973
PUT
Amphenol
APH
$188B
| $6.82M | 0.01% |
212,000
+198,400
| +1,459% | +$6.9M |
|
974
CALL
ALPS REIT Dividend Dogs ETF
RDOG
$11.6M
| $6.79M | 0.01% |
197,300
-25,300
| -11% | -$1.17M |
|
975
PUT
Peabody Energy
BTU
$2.78B
| $6.79M | 0.01% |
318,100
-188,300
| -37% | -$4.62M |
|
Similar funds
Simplex Trading's Q2 2022 Portfolio in Review
As of Q2 2022, Simplex Trading held 11,810 positions worth $94.1B, down 14% from $109B the previous quarter. Its ten largest holdings account for 40% of the portfolio.
Simplex Trading deployed $11.3B of net new capital in Q2 2022, opening 1,405 new positions and adding to 4,027 existing holdings. Its largest new stake was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
By sector, the portfolio is most concentrated in Technology at 0.84% of assets, up from 0.67% a quarter earlier, followed by Communication Services and Consumer Discretionary.
On the sell side, the largest reduction was United Airlines, an estimated $22.7M trimmed.
- Simplex Trading's largest Q2 2022 buy was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
- Simplex Trading added most to Apple in Q2 2022, an estimated $286M increase.
- Simplex Trading's biggest Q2 2022 reduction was United Airlines, cutting an estimated $22.7M.
- Simplex Trading fully exited State Street SPDR S&P 500 ETF Trust in Q2 2022, selling an estimated $51.5M.
- Simplex Trading's ten largest holdings make up 40% of its $94.1B portfolio in Q2 2022.
- Simplex Trading opened 1,405 new positions and closed 1,792 in Q2 2022.
- Simplex Trading's portfolio value fell 14% quarter-over-quarter to $94.1B.
Based on Simplex Trading's 13F filing for Q2 2022, filed 3 Aug 2022.