(21)The rules for ELTIFs are almost identical for both professional and retail investors, including rules on the use of leverage, on the diversification of assets and composition of the portfolios, on concentration limits and on limits on the eligible assets and investments. However, professional and retail investors have different time horizons, risk tolerances and investment needs as well as different capabilities to analyse investment opportunities. Indeed, professional investors have a higher risk tolerance than retail investors, are able to perform thorough analyses of investment possibilities and due diligence of assets and their valuation, and might, due to their nature and activities, have different return objectives compared to retail investors. Despite that, and because of the almost identical rules and the resulting high administrative burden and associated costs for ELTIFs intended for professional investors, asset managers have to date been reluctant to offer tailored products to professional investors. It is therefore appropriate to provide for specific rules for ELTIFs that are marketed solely to professional investors, in particular with regard to the diversification and composition of the portfolio concerned, the concentration limits and the borrowing of cash.