Investments by a venture capital fund can take the form of either preferred stock equity or a combination of equity and debt obligation, often with convertible debt instruments that become equity if a certain level of risk is exceeded. The common stock is often reserved by covenant for a future buyout, as VC investment criteria usually include a planned exit event (an IPO or acquisition), normally within 3 to 7 years.

Venture capital is not suitable for many entrepreneurs. Venture capitalists are very selective in deciding what to invest in; as a rule of thumb, a fund invests only in about one in 400 opportunities presented to it. They are most interested in ventures with high growth potential, as only such opportunities are likely capable of providing the financial returns and successful exit event within the required timeframe that venture capitalists expect. Because of such expectations, most venture funding goes into companies in the fast-growing technology and life sciences or biotechnology fields.