CTC (Chicago Trading Company) Portfolio holdings
CTC LLC, commonly known as Chicago Trading Company, was founded in 1995 by Rick Lane and Peter Ryan and is headquartered in Chicago, Illinois, operating as a proprietary trading firm specializing in derivatives, particularly options and futures, across major U.S. exchanges like the CME and CBOE. With a workforce of around 350-400 employees, CTC leverages advanced technology and quantitative strategies to provide liquidity and execute high-volume trades in equities, commodities, and fixed income, evolving from its origins on Chicago’s trading floors to a modern, collaborative office environment. Known for its innovative culture, the firm emphasizes teamwork between traders, quants, and technologists to tackle complex market challenges, maintaining a competitive edge in the fast-paced world of electronic trading. Privately held and low-profile, CTC has grown into a significant player in the financial markets, focusing on integrity, ingenuity, and cutting-edge problem-solving.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$594M |
| 2 |
Microsoft
MSFT
|
+$196M |
| 3 |
Netflix
NFLX
|
+$145M |
| 4 |
Tesla
TSLA
|
+$116M |
| 5 |
Broadcom
AVGO
|
+$66.2M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Invesco QQQ Trust
QQQ
|
+$118M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$106M |
| 3 |
Strategy Inc
MSTR
|
+$94.9M |
| 4 |
Alphabet (Google) Class C
GOOG
|
+$89.5M |
| 5 |
NVIDIA
NVDA
|
+$73M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.36% |
| 2 | Communication Services | 0.19% |
| 3 | Consumer Discretionary | 0.14% |
| 4 | Financials | 0.04% |
| 5 | Industrials | 0.01% |
Similar funds
CTC (Chicago Trading Company)'s Q3 2025 Portfolio in Review
As of Q3 2025, CTC (Chicago Trading Company) held 174 positions worth $200B, up 18% from $169B the previous quarter. Its ten largest holdings account for 71% of the portfolio.
CTC (Chicago Trading Company) withdrew a net $171B in Q3 2025, closing 12 positions and reducing 135 holdings. Its most notable exit was Alphabet (Google) Class C, an estimated $89.5M position sold in full.
By sector, the portfolio is most concentrated in Technology at 0.36% of assets, up from 0.31% a quarter earlier, followed by Communication Services and Consumer Discretionary.
Against the trend, CTC (Chicago Trading Company) opened a new position in Microsoft worth $199M.
- CTC (Chicago Trading Company)'s largest Q3 2025 buy was Microsoft: 384,623 shares worth $199M.
- CTC (Chicago Trading Company) added most to State Street SPDR S&P 500 ETF Trust in Q3 2025, an estimated $594M increase.
- CTC (Chicago Trading Company)'s biggest Q3 2025 reduction was Invesco QQQ Trust, cutting an estimated $118M.
- CTC (Chicago Trading Company) fully exited Alphabet (Google) Class C in Q3 2025, selling an estimated $89.5M.
- CTC (Chicago Trading Company)'s ten largest holdings make up 71% of its $200B portfolio in Q3 2025.
- CTC (Chicago Trading Company) opened 9 new positions and closed 12 in Q3 2025.
- CTC (Chicago Trading Company)'s portfolio value rose 18% quarter-over-quarter to $200B.
Based on CTC (Chicago Trading Company)'s 13F filing for Q3 2025, filed 15 Dec 2025.