Cache Long/Short has three primary cost components.
Advisory fee: Typically 0.50% annually for a standard 130/30 portfolio. Higher extensions (150/50, 200/100) carry higher fees disclosed in your advisory agreement.
Financing costs: Margin interest on borrowed capital can vary across vendors. For a 130/30 portfolio, while variable, we have seen that a 0.28% financing cost, which we have seen is (or 0.17% after tax deductions) is typical. These scale and increase with the extension and fluctuate with interest rates.
All in costs: Apart from the advisory fee and financing costs you bear (about 0.78% for 130/30), there are also additional costs from borrowing stocks for shorting, and trading costs from a high turnover portfolio.