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 | |
|---|---|---|---|---|---|---|
|
NTR
3726
CALL
DELISTED
NEW YORK MORTGAGE TRUST INC
NTR
| $400K | ﹤0.01% |
145,200
+11,100
| +8% | +$30.6K |
|
3727
PUT
Cemex
CX
$16.9B
| $399K | ﹤0.01% |
101,900
+41,600
| +69% | +$178K |
|
|
SPTN
3728
PUT
DELISTED
SpartanNash
SPTN
| $398K | ﹤0.01% |
13,200
-8,700
| -40% | -$288K |
|
3729
PUT
Coca-Cola Europacific Partners
CCEP
$49.1B
| $397K | ﹤0.01% |
7,700
+3,600
| +88% | +$184K |
|
3730
PUT
Ginkgo Bioworks
DNA
$498M
| $397K | ﹤0.01% |
4,180
-2,785
| -40% | -$340K |
|
3731
PUT
Iovance Biotherapeutics
IOVA
$2.04B
| $397K | ﹤0.01% |
36,000
+25,000
| +227% | +$328K |
|
3732
CALL
Valvoline
VVV
$5.06B
| $397K | ﹤0.01% |
13,800
+6,000
| +77% | +$184K |
|
3733
CALL
Establishment Labs
ESTA
$2.71B
| $396K | ﹤0.01% |
7,300
-22,400
| -75% | -$1.42M |
|
3734
CALL
abrdn Physical Gold Shares ETF
SGOL
$6.9B
| $396K | ﹤0.01% |
22,900
+16,200
| +242% | +$291K |
|
3735
PUT
Werner Enterprises
WERN
$2.2B
| $396K | ﹤0.01% |
10,300
+8,900
| +636% | +$351K |
|
3736
CALL
Eagle Materials
EXP
$6.49B
| $395K | ﹤0.01% |
3,600
-200
| -5% | -$24.6K |
|
3737
CALL
908 Devices
MASS
$312M
| $395K | ﹤0.01% |
19,200
+7,900
| +70% | +$133K |
|
3738
PUT
PagSeguro Digital
PAGS
$2.67B
| $395K | ﹤0.01% |
38,600
-44,700
| -54% | -$641K |
|
|
TRTX
3739
CALL
TPG RE Finance Trust
TRTX
$635M
| $395K | ﹤0.01% |
43,900
+40,500
| +1,191% | +$424K |
|
3740
PUT
Atea Pharmaceuticals
AVIR
$370M
| $394K | ﹤0.01% |
55,500
-109,100
| -66% | -$745K |
|
3741
BWX Technologies
BWXT
$14.4B
| $394K | ﹤0.01% |
7,161
-543
| -7% | -$28.2K |
|
3742
CALL
Protalix BioTherapeutics
PLX
$183M
| $394K | ﹤0.01% |
362,200
+126,400
| +54% | +$148K |
|
|
WIRE
3743
PUT
DELISTED
Encore Wire Corp
WIRE
| $394K | ﹤0.01% |
3,800
+1,900
| +100% | +$225K |
|
3744
PUT
BRC Inc
BRCC
$122M
| $393K | ﹤0.01% |
48,200
-143,400
| -75% | -$1.97M |
|
3745
CALL
Taboola.com
TBLA
$1.41B
| $393K | ﹤0.01% |
155,700
-35,700
| -19% | -$131K |
|
|
TRQ
3746
PUT
DELISTED
Turquoise Hill Resources Ltd
TRQ
| $393K | ﹤0.01% |
14,700
-2,300
| -14% | -$65.1K |
|
3747
BridgeBio Pharma
BBIO
$16.4B
| $392K | ﹤0.01% |
+43,235
| New | +$362K |
|
3748
PUT
Insulet
PODD
$11.8B
| $392K | ﹤0.01% |
1,800
-800
| -31% | -$182K |
|
3749
CALL
Arqit Quantum
ARQQ
$270M
| $391K | ﹤0.01% |
2,484
+512
| +26% | +$106K |
|
3750
PUT
Medallion Financial
MFIN
$230M
| $391K | ﹤0.01% |
61,200
+700
| +1% | +$5.34K |
|
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.