About
Mainsail publishes live records of a systematic portfolio strategy operated through a combination of serverless infrastructure and modern financial engineering, applied to crypto markets.
Operating Philosophy
The site's operation is based on the following principles. First, execution is 100% systematic, and human discretionary intervention is limited to cases that meet explicitly defined withdrawal criteria. Second, risk management dynamically adjusts position sizes in response to market volatility. Third, withdrawal criteria are mechanically applied based on conditions documented in written specifications, eliminating psychological softness. Fourth, multiple independent alpha sources are combined to avoid relying on patterns that work only by chance in specific market environments.
Disclosure Policy
While this site publishes all performance figures, cumulative returns, benchmark comparisons, and backtest results, it does not disclose the specific composition, parameters, weighting, exchange, or internal implementation of each strategy. This is to prevent reverse engineering and preserve long-term alpha persistence.
Infrastructure
The automated execution infrastructure is built around AWS serverless services (Lambda, DynamoDB, Step Functions, S3, CloudFront). Without persistent servers, resources are launched only when needed, achieving institutional-grade infrastructure at low cost even for retail individuals. Execution and monitoring are fully automated, and operator intervention is limited to withdrawal-criteria triggers and account management.
Operating Phases
- Phase 1 (2026 - 2027): Paper Trading. Strategy operations and infrastructure stability are verified without real trades.
- Phase 2 (2027): Small Live. Real-money execution with $1,000 to measure actual slippage and costs.
- Phase 3 (2028 onwards): Full Live. Full-scale operations begin in alignment with the upcoming Japanese tax reform (separate taxation 20.315% expected to take effect on 2028-01-01).