We are live on ! Find out more
Simplex Trading

Simplex Trading Portfolio holdings

AUM $149B
1-Year Est. Return 62.07%
 

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.

This Fund
S&P 500
This Quarter Est. Return
+6.46%
1 Year Est. Return
+62.07%
3 Year Est. Return
+116.86%
5 Year Est. Return
+116.02%
10 Year Est. Return
+774.44%
AUM
$122B
AUM Growth
+$7.84B
Cap. Flow
-$3.39B
Cap. Flow %
-2.78%
Top 10 Hldgs %
42.57%
Holding
10,535
New
1,474
Increased
3,350
Reduced
3,913
Closed
1,517

Top Buys

Rank Stock Value
1
MSFT icon
Microsoft
MSFT
+$53.9M
2
TLT icon
iShares 20+ Year Treasury Bond ETF
TLT
+$52.9M
3
NVDA icon
NVIDIA
NVDA
+$47.1M
4
PYPL icon
PayPal
PYPL
+$41.7M
5
GOOG icon
Alphabet (Google) Class C
GOOG
+$28.4M

Top Sells

Rank Stock Value
1
AAPL icon
Apple
AAPL
+$51.4M
2
WMT icon
Walmart Inc
WMT
+$46.4M
3
OIH icon
VanEck Oil Services ETF
OIH
+$34.2M
4
ADBE icon
Adobe
ADBE
+$33.5M
5
SBUX icon
Starbucks
SBUX
+$26.8M

Sector Composition

Rank Sector Weight
1 Technology 0.41%
2 Healthcare 0.21%
3 Consumer Discretionary 0.21%
4 Communication Services 0.2%
5 Financials 0.15%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
EUM icon
9201
ProShares Trust Short MSCI Emerging Markets
EUM
$10.8M
– –
-386
Closed -$11K
EUO icon
9202
ProShares UltraShort Euro
EUO
$35.6M
– –
-5,016
Closed -$145K
EVAX
9203
CALL
Evaxion A/S
EVAX
$25M
– –
-20
Closed -$1K
EVCM icon
9204
CALL
EverCommerce
EVCM
$1.98B
– –
-1,000
Closed -$10K
EVER icon
9205
EverQuote
EVER
$880M
– –
-3,065
Closed -$25.9K
EVEX icon
9206
Eve Holding
EVEX
$819M
– –
-500
Closed -$4.16K
EVGN icon
9207
Evogene
EVGN
$6.54M
$0 ﹤0.01%
48
-20
-29% -$135
EVLV icon
9208
Evolv Technologies
EVLV
$952M
– –
-33,307
Closed -$157K
EVTC icon
9209
Evertec
EVTC
$1.83B
– –
-248
Closed -$8K
EVTC icon
9210
PUT
Evertec
EVTC
$1.83B
– –
-300
Closed -$10K
EW icon
9211
Edwards Lifesciences
EW
$49B
– –
-100
Closed -$8.69K
EWI icon
9212
iShares MSCI Italy ETF
EWI
$915M
– –
-23,453
Closed -$713K
EWM icon
9213
iShares MSCI Malaysia ETF
EWM
$305M
$0 ﹤0.01%
40
-5,468
-99% -$116K
EWS icon
9214
iShares MSCI Singapore ETF
EWS
$1.02B
– –
-105,990
Closed -$2.1M
EWT icon
9215
iShares MSCI Taiwan ETF
EWT
$10.2B
– –
-18,496
Closed -$838K
EWY icon
9216
iShares MSCI South Korea ETF
EWY
$22.3B
– –
-23,235
Closed -$1.42M
EXEL icon
9217
Exelixis
EXEL
$14B
– –
-7,792
Closed -$150K
EXLS icon
9218
CALL
EXL Service
EXLS
$4.2B
– –
-5,500
Closed -$178K
EXLS icon
9219
EXL Service
EXLS
$4.2B
– –
-3,960
Closed -$125K
EXP icon
9220
Eagle Materials
EXP
$6.57B
– –
-1,713
Closed -$273K
HYPD
9221
Hyperion DeFi Inc
HYPD
$39.7M
$0 ﹤0.01%
+4
New +$1.15K
EYPT icon
9222
EyePoint Inc
EYPT
$1.03B
$0 ﹤0.01%
+72
New +$440
EZPW icon
9223
CALL
Ezcorp Inc
EZPW
$1.86B
– –
-4,100
Closed -$35K
FBIO icon
9224
CALL
Fortress Biotech
FBIO
$111M
– –
-120
Closed -$1K
FBIN icon
9225
PUT
Fortune Brands Innovations
FBIN
$6.15B
– –
-200
Closed -$11K
367 368
369
370 371

Similar funds

Mitsubishi UFJ Asset Management
Mitsubishi UFJ Asset Management Tokyo, Japan $149B AUM 24.71% 1-Year Est. Return
Creative Planning
Creative Planning Overland Park, Kansas $147B AUM 18.73% 1-Year Est. Return
Jennison Associates
Jennison Associates New York $145B AUM 34.61% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $154B AUM 29.96% 1-Year Est. Return
Canada Pension Plan Investment Board
Canada Pension Plan Investment Board Toronto Ontario, Ontario, Canada $155B AUM 29.93% 1-Year Est. Return
Victory Capital Management
Victory Capital Management San Antonio, Texas $156B AUM 27.51% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $140B AUM 27.84% 1-Year Est. Return

Simplex Trading's Q2 2023 Portfolio in Review

As of Q2 2023, Simplex Trading held 10,535 positions worth $122B, up 6.9% from $114B the previous quarter. Its ten largest holdings account for 43% of the portfolio.

Simplex Trading's Q2 2023 filing shows 1,474 new, 3,350 increased, 3,913 reduced and 1,517 closed positions. Its largest new stake was Microsoft: 171,935 shares worth $58.5M. The largest sale was Apple, an estimated $51.4M.

By sector, the portfolio is most concentrated in Technology at 0.41% of assets, down from 0.42% a quarter earlier, followed by Healthcare and Consumer Discretionary.

  • Simplex Trading's largest Q2 2023 buy was Microsoft: 171,935 shares worth $58.5M.
  • Simplex Trading added most to iShares 20+ Year Treasury Bond ETF in Q2 2023, an estimated $52.9M increase.
  • Simplex Trading's biggest Q2 2023 reduction was Adobe, cutting an estimated $33.5M.
  • Simplex Trading fully exited Apple in Q2 2023, selling an estimated $51.4M.
  • Simplex Trading's ten largest holdings make up 43% of its $122B portfolio in Q2 2023.
  • Simplex Trading opened 1,474 new positions and closed 1,517 in Q2 2023.
  • Simplex Trading's portfolio value rose 6.9% quarter-over-quarter to $122B.

Based on Simplex Trading's 13F filing for Q2 2023, filed 4 Aug 2023.