Sharpe Ratio

The Sharpe Ratio is a measure of risk-adjusted return – it tells an investor how much excess return is achieved per unit of volatility or risk taken. To calculate it, one takes the investment’s average return over a risk-free rate (excess return) and divides by the standard deviation of the investment’s returns. The Sharpe Ratio Formula is (Rp – Rf) / σp, where Rp is the portfolio’s average return, Rf is the risk-free rate, and σp is the standard deviation of portfolio returns. A higher Sharpe Ratio indicates a more attractive risk-adjusted performance – meaning the investor earned more return per unit of risk. For example, if Fund A and Fund B both returned 10% annually, but Fund A’s returns were very steady (low volatility) and Fund B’s swung widely (high volatility), Fund A would have a higher Sharpe Ratio, signaling a smoother ride for the same return. High-net-worth investors use the Sharpe Ratio to compare managers or asset classes: it’s especially relevant when considering adding real estate to a portfolio. Real estate often has a favorable Sharpe Ratio historically because of relatively strong returns with moderate volatility (and low correlation to stocks), thus improving a multi-asset portfolio’s overall risk-adjusted return. Lightstone’s focus on “market-leading risk-adjusted returns” ties directly to metrics like Sharpe Ratio – while they may not publish the Sharpe for each offering (since individual project returns aren’t a series of market-priced data points in the same way as a traded fund), the concept permeates their strategy of balancing return and risk. By co-investing and carefully underwriting, Lightstone aims for a profile of returns that, when realized, would exhibit strong risk-adjusted performance. In sum, the Sharpe Ratio is a reminder to investors that it’s not just about absolute returns, but how volatile or unpredictable the path to those returns is. An investment with an 18% IRR that swings dramatically in interim cash flow or value might actually be less desirable than one with a 15% IRR that’s more stable – Sharpe Ratio puts numbers to that intuition and is a useful tool in an investor’s evaluation toolkit.