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 |
NVIDIA
NVDA
|
+$93M |
| 2 |
Citigroup
C
|
+$74.8M |
| 3 |
Pinduoduo
PDD
|
+$50.7M |
| 4 |
Intel
INTC
|
+$47.1M |
| 5 |
Broadcom
AVGO
|
+$46.2M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street Energy Select Sector SPDR ETF
XLE
|
+$94.5M |
| 2 |
Pfizer
PFE
|
+$66.4M |
| 3 |
Boeing
BA
|
+$61.6M |
| 4 |
PayPal
PYPL
|
+$42.2M |
| 5 |
GE Aerospace
GE
|
+$42M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.53% |
| 2 | Consumer Discretionary | 0.29% |
| 3 | Healthcare | 0.21% |
| 4 | Financials | 0.2% |
| 5 | Materials | 0.12% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
MTTR
3276
DELISTED
Matterport, Inc. Class A Common Stock
MTTR
| $704K | ﹤0.01% |
157,534
-1,755
| -1% | -$6.65K |
|
3277
Invesco DB Commodity Index Tracking Fund
DBC
$1.67B
| $703K | ﹤0.01% |
30,286
-10,243
| -25% | -$239K |
|
3278
CALL
Oshkosh
OSK
$9.66B
| $703K | ﹤0.01% |
6,500
-10,900
| -63% | -$1.26M |
|
3279
CALL
Progyny
PGNY
$2.47B
| $703K | ﹤0.01% |
24,600
-15,100
| -38% | -$455K |
|
3280
PUT
TD Synnex
SNX
$19.6B
| $703K | ﹤0.01% |
6,100
-1,100
| -15% | -$134K |
|
3281
CALL
Itron
ITRI
$3.76B
| $702K | ﹤0.01% |
7,100
-800
| -10% | -$80.5K |
|
3282
Rogers Corp
ROG
$2.31B
| $702K | ﹤0.01% |
5,823
+303
| +5% | +$35.5K |
|
3283
CALL
Western Union
WU
$2.55B
| $702K | ﹤0.01% |
57,500
+6,200
| +12% | +$80.6K |
|
3284
Zions Bancorporation
ZION
$10B
| $702K | ﹤0.01% |
16,195
-98,933
| -86% | -$4.18M |
|
3285
PUT
Franklin Resources
BEN
$17.3B
| $701K | ﹤0.01% |
31,400
-73,900
| -70% | -$1.78M |
|
3286
PUT
Cintas
CTAS
$84.4B
| $700K | ﹤0.01% |
4,000
-36,800
| -90% | -$6.28M |
|
3287
PUT
Forward Air
FWRD
$466M
| $700K | ﹤0.01% |
36,800
-1,800
| -5% | -$37.2K |
|
3288
PUT
dLocal
DLO
$4.4B
| $699K | ﹤0.01% |
86,500
+19,100
| +28% | +$224K |
|
|
MZTI
3289
CALL
The Marzetti Company
MZTI
$2.95B
| $699K | ﹤0.01% |
3,700
+1,100
| +42% | +$210K |
|
3290
American Water Works
AWK
$26.3B
| $698K | ﹤0.01% |
5,407
+2,699
| +100% | +$341K |
|
3291
PUT
Exelixis
EXEL
$14B
| $698K | ﹤0.01% |
31,100
-21,400
| -41% | -$475K |
|
3292
Labcorp
LH
$24.7B
| $697K | ﹤0.01% |
3,426
-1,617
| -32% | -$329K |
|
|
MOMO
3293
PUT
Hello Group
MOMO
$869M
| $697K | ﹤0.01% |
113,900
+21,400
| +23% | +$125K |
|
3294
CALL
ArcBest
ARCB
$3.31B
| $696K | ﹤0.01% |
6,500
-5,800
| -47% | -$699K |
|
3295
PUT
Brookfield Infrastructure Partners
BIP
$18.6B
| $696K | ﹤0.01% |
25,400
+8,600
| +51% | +$245K |
|
3296
PUT
CVR Energy
CVI
$3.43B
| $696K | ﹤0.01% |
26,000
-15,500
| -37% | -$471K |
|
3297
CALL
DHT Holdings
DHT
$2.95B
| $696K | ﹤0.01% |
60,200
-37,400
| -38% | -$439K |
|
3298
CALL
Sundial Growers
SNDL
$351M
| $696K | ﹤0.01% |
366,400
+39,000
| +12% | +$83.5K |
|
3299
PUT
United Microelectronic
UMC
$47.9B
| $696K | ﹤0.01% |
79,500
-26,500
| -25% | -$219K |
|
|
BBBY
3300
Bed Bath & Beyond
BBBY
$512M
| $694K | ﹤0.01% |
+58,403
| New | +$1.04M |
|
Similar funds
Simplex Trading's Q2 2024 Portfolio in Review
As of Q2 2024, Simplex Trading held 10,213 positions worth $162B, down 6.5% from $173B the previous quarter. Its ten largest holdings account for 50% of the portfolio.
Simplex Trading withdrew a net $19.2B in Q2 2024, closing 1,431 positions and reducing 4,061 holdings. Its most notable exit was Boeing, an estimated $61.6M position sold in full.
By sector, the portfolio is most concentrated in Technology at 0.53% of assets, up from 0.38% a quarter earlier, followed by Consumer Discretionary and Healthcare.
Against the trend, Simplex Trading opened a new position in Citigroup worth $77M.
- Simplex Trading's largest Q2 2024 buy was Citigroup: 1,213,247 shares worth $77M.
- Simplex Trading added most to NVIDIA in Q2 2024, an estimated $93M increase.
- Simplex Trading's biggest Q2 2024 reduction was State Street Energy Select Sector SPDR ETF, cutting an estimated $94.5M.
- Simplex Trading fully exited Boeing in Q2 2024, selling an estimated $61.6M.
- Simplex Trading's ten largest holdings make up 50% of its $162B portfolio in Q2 2024.
- Simplex Trading opened 1,358 new positions and closed 1,431 in Q2 2024.
- Simplex Trading's portfolio value fell 6.5% quarter-over-quarter to $162B.
Based on Simplex Trading's 13F filing for Q2 2024, filed 25 Jul 2024.