According to Modern Portfolio Theory, optimizing asset allocation can effectively reduce systematic risk and improve the Sharpe ratio.

根据现代投资组合理论，通过优化资产配置可以有效降低系统性风险并提高夏普比率。

同一单元的其他句子

• Based on the DCF valuation model, the company's intrinsic value is significantly higher than the current market price; we recommend buying.根据折现现金流模型（DCF）的估值结果，该公司的内在价值显著高于当前市场价格，建议买入。
• Given the strengthened Fed rate hike expectations, emerging markets may face capital outflows and currency depreciation pressure.鉴于美联储加息预期增强，新兴市场可能面临资本外流和汇率贬值压力。
• The company's debt-to-asset ratio has exceeded 70% and the interest coverage ratio has declined; its financial risk warrants attention.该公司的资产负债率已超过70%，利息保障倍数下降，财务风险值得关注。
• The quantitative strategy is based on statistical arbitrage models, using historical price patterns to predict short-term volatility and execute trades automatically.量化策略基于统计套利模型，利用历史价格模式预测短期波动并自动执行交易。
• Based on the CAPM model, the stock's expected return is 8.5% while the actual return is only 6.2%, indicating the stock is overvalued.根据CAPM模型，该股票的预期收益率为8.5%，而实际收益率仅为6.2%，表明该股票被高估。