本页是 /research/portfolio/ 的中文版本。专有名词和代码标识保持英文，以便和包 API 对齐。
组合 research turns forecasts into positions while controlling risk, concentration, liquidity, and turnover. Begin with a simple rule or constrained optimizer and make each additional constraint explicit.
本节仍在建设中。 It will cover portfolio objectives, risk controls, liquidity constraints, turnover limits, and implementation choices.