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 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$42.6M |
| 2 |
Shopify
SHOP
|
+$39.6M |
| 3 |
iShares China Large-Cap ETF
FXI
|
+$35.4M |
| 4 |
Verizon
VZ
|
+$34.1M |
| 5 |
KraneShares CSI China Internet ETF
KWEB
|
+$34.1M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
AMC Entertainment Holdings
AMC
|
+$49.5M |
| 2 |
GE Aerospace
GE
|
+$35.2M |
| 3 |
Carnival Corporation Ltd
CCL
|
+$30.5M |
| 4 |
Advanced Micro Devices
AMD
|
+$28.8M |
| 5 |
Micron Technology
MU
|
+$23.7M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.61% |
| 2 | Consumer Discretionary | 0.43% |
| 3 | Healthcare | 0.35% |
| 4 | Communication Services | 0.23% |
| 5 | Financials | 0.21% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
SAVE
2676
DELISTED
Spirit Airlines, Inc.
SAVE
| $1.16M | ﹤0.01% |
52,967
-7,175
| -12% | -$167K |
|
|
PINC
2677
DELISTED
Premier
PINC
| $1.16M | ﹤0.01% |
+28,088
| New | +$1.11M |
|
|
TPGY
2678
PUT
DELISTED
TPG Pace Beneficial Finance Corp.
TPGY
| $1.16M | ﹤0.01% |
117,800
-237,100
| -67% | -$2.49M |
|
2679
CALL
GoPro
GPRO
$116M
| $1.15M | ﹤0.01% |
111,900
-107,400
| -49% | -$1.07M |
|
2680
CALL
Graco
GGG
$12.9B
| $1.15M | ﹤0.01% |
14,300
+1,700
| +13% | +$129K |
|
2681
CALL
Lear
LEA
$7.19B
| $1.15M | ﹤0.01% |
6,300
+5,500
| +688% | +$966K |
|
2682
CALL
Annaly Capital Management
NLY
$16.9B
| $1.15M | ﹤0.01% |
36,850
-20,425
| -36% | -$687K |
|
|
LHCG
2683
CALL
DELISTED
LHC Group LLC
LHCG
| $1.15M | ﹤0.01% |
8,400
+3,600
| +75% | +$492K |
|
2684
Invesco DB Agriculture Fund
DBA
$1.26B
| $1.15M | ﹤0.01% |
58,313
+20,293
| +53% | +$397K |
|
2685
Ally Financial
ALLY
$13.1B
| $1.15M | ﹤0.01% |
24,119
-24,636
| -51% | -$1.22M |
|
2686
Paycom
PAYC
$6.78B
| $1.15M | ﹤0.01% |
+2,767
| New | +$1.31M |
|
|
ALLK
2687
CALL
DELISTED
Allakos
ALLK
| $1.15M | ﹤0.01% |
117,100
+113,300
| +2,982% | +$9.28M |
|
|
EB
2688
CALL
DELISTED
Eventbrite
EB
| $1.15M | ﹤0.01% |
65,700
+55,700
| +557% | +$1.03M |
|
2689
Consolidated Edison
ED
$41.6B
| $1.14M | ﹤0.01% |
13,413
+7,521
| +128% | +$591K |
|
2690
PUT
VICI Properties
VICI
$29.4B
| $1.14M | ﹤0.01% |
38,000
+22,400
| +144% | +$649K |
|
2691
PUT
MBIA
MBI
$288M
| $1.14M | ﹤0.01% |
72,400
+66,300
| +1,087% | +$875K |
|
|
WE
2692
CALL
DELISTED
WeWork Inc.
WE
| $1.14M | ﹤0.01% |
+3,323
| New | +$1.22M |
|
|
2693
GoPro
GPRO
$116M
| $1.14M | ﹤0.01% |
+110,763
| New | +$1.1M |
|
2694
PUT
Children's Place
PLCE
$53.6M
| $1.14M | ﹤0.01% |
14,400
+8,400
| +140% | +$738K |
|
2695
PUT
FirstEnergy
FE
$28.9B
| $1.14M | ﹤0.01% |
27,400
+4,300
| +19% | +$166K |
|
2696
PUT
Vanguard Total International Stock ETF
VXUS
$153B
| $1.14M | ﹤0.01% |
17,900
+16,500
| +1,179% | +$1.06M |
|
|
FFAI
2697
PUT
Faraday Future Intelligent Electric
FFAI
$15.8M
| – | – |
0
| – | – |
|
|
CND
2698
CALL
DELISTED
Concord Acquisition Corp.
CND
| $1.14M | ﹤0.01% |
+109,300
| New | +$1.2M |
|
|
CIM
2699
CALL
Chimera Investment
CIM
$1.05B
| $1.14M | ﹤0.01% |
25,100
+19,267
| +330% | +$911K |
|
2700
PUT
Gen Digital
GEN
$15.6B
| $1.14M | ﹤0.01% |
43,700
-20,800
| -32% | -$526K |
|
Similar funds
Simplex Trading's Q4 2021 Portfolio in Review
As of Q4 2021, Simplex Trading held 12,077 positions worth $99B, down 7.5% from $107B the previous quarter. Its ten largest holdings account for 33% of the portfolio.
Simplex Trading withdrew a net $10.8B in Q4 2021, closing 1,645 positions and reducing 4,258 holdings. Its most notable exit was Carnival Corporation Ltd, an estimated $30.5M position sold in full.
By sector, the portfolio is most concentrated in Technology at 0.61% of assets, up from 0.49% a quarter earlier, followed by Consumer Discretionary and Healthcare.
Against the trend, Simplex Trading opened a new position in iShares China Large-Cap ETF worth $33M.
- Simplex Trading's largest Q4 2021 buy was iShares China Large-Cap ETF: 902,666 shares worth $33M.
- Simplex Trading added most to State Street Financial Select Sector SPDR ETF in Q4 2021, an estimated $42.6M increase.
- Simplex Trading's biggest Q4 2021 reduction was AMC Entertainment Holdings, cutting an estimated $49.5M.
- Simplex Trading fully exited Carnival Corporation Ltd in Q4 2021, selling an estimated $30.5M.
- Simplex Trading's ten largest holdings make up 33% of its $99B portfolio in Q4 2021.
- Simplex Trading opened 2,269 new positions and closed 1,645 in Q4 2021.
- Simplex Trading's portfolio value fell 7.5% quarter-over-quarter to $99B.
Based on Simplex Trading's 13F filing for Q4 2021, filed 4 Feb 2022.