Quincy Lee - Ancient Art (Teton Capital) Portfolio

Period Date  Jun 30, 2025
Filing Date  Aug 14, 2025
Total Stocks  15
Portfolio Value  $309.64M

Ancient Art (Teton Capital) Strategy Analysis

Investment Strategy Metrics

Key metrics revealing investment style, risk management, and performance characteristics

MetricValueCategoryDescription
Holding Period1.6 yearsStyleAverage duration positions are maintained
Position Count29StyleNumber of active positions in portfolio
Position Size6.4%RiskTypical allocation per position
Win Rate49.1%PerformancePercentage of profitable positions
Average Return10.3%PerformanceMean return across positions
Sharpe Ratio0.19PerformanceReturn per unit of risk taken

Investment Case Study: INTERACTIVE BROKERS GROUP IN (IBKR)

6/30/2013 - 8/23/2025

Performance Metrics

Total Return: 107,803.88%

Holding Period: 4437 days

Max Position Size: $91,073,871.00

Position Weight: 18.15%

Key Events

6/30/2013: ENTRY(2,696,517.00 shares) @ $0.02
9/30/2013: INCREASE(184,485.00 shares) @ $0.02
3/31/2014: INCREASE(278,191.00 shares) @ $0.02
6/30/2014: INCREASE(20,000.00 shares) @ $0.02
9/30/2014: INCREASE(134,233.00 shares) @ $0.02
12/31/2014: INCREASE(90,032.00 shares) @ $0.03
3/31/2015: INCREASE(134,121.00 shares) @ $0.03
9/30/2015: INCREASE(148.00 shares) @ $0.04
12/31/2015: DECREASE(-319,714.00 shares) @ $0.04
3/31/2016: INCREASE(263,395.00 shares) @ $0.04
6/30/2016: DECREASE(-163,035.00 shares) @ $0.04
12/31/2016: DECREASE(-17,121.00 shares) @ $0.04
3/31/2017: INCREASE(7,943.00 shares) @ $0.03
6/30/2017: INCREASE(101,121.00 shares) @ $0.04
12/31/2017: DECREASE(-1,008,519.00 shares) @ $0.06
3/31/2018: DECREASE(-415,184.00 shares) @ $0.07
6/30/2018: DECREASE(-577,293.00 shares) @ $0.06
9/30/2018: INCREASE(59,996.00 shares) @ $0.06
12/31/2018: INCREASE(150,457.00 shares) @ $0.05
3/31/2019: DECREASE(-500.00 shares) @ $0.05
3/31/2020: INCREASE(272,300.00 shares) @ $0.04
9/30/2020: DECREASE(-1,658.00 shares) @ $0.05
3/31/2021: DECREASE(-101,942.00 shares) @ $0.07
6/30/2021: DECREASE(-52,380.00 shares) @ $0.07
12/31/2021: DECREASE(-599,593.00 shares) @ $0.08
3/31/2022: DECREASE(-125,651.00 shares) @ $0.07
9/30/2022: INCREASE(50,000.00 shares) @ $0.06
12/31/2022: DECREASE(-50,000.00 shares) @ $72.35
3/31/2023: DECREASE(-431,971.00 shares) @ $82.56
9/30/2023: DECREASE(-28,204.00 shares) @ $86.56
6/30/2024: DECREASE(-25,000.00 shares) @ $122.60
9/30/2024: DECREASE(-68,810.00 shares) @ $139.36
12/31/2024: DECREASE(-10,455.00 shares) @ $176.67
3/31/2025: DECREASE(-35,000.00 shares) @ $165.59
6/30/2025: INCREASE(1,232,727.00 shares) @ $55.41

Investment Thesis

Entry Context: Initial position established based on fundamental analysis

Sector Conditions: Favorable market conditions in the sector

Risk Factors:
  • Market volatility
  • Sector-specific risks

Key Learnings

  • Position sizing is critical for portfolio management
  • Important to monitor sector exposure

Sector Allocations