In a traditional, or ‘long-only’, collective fund, a fund manager will invest in shares of companies that they believe will do well over time. As part of their research, they may also find companies that they think are more likely to do badly – perhaps the competitor of a top-performing company, or a supplier not meeting its obligations. However, most ‘long-only’ fund managers can only benefit from this information by choosing not to hold the shares.
Long/short equity funds aim to exploit both sides – going ‘long’, by buying shares in companies the managers think are likely to do well, and ‘short’, by selling shares in companies likely to do badly in their view. They go short by borrowing company shares and selling them. When they buy them back at a later date, they profit from any fall in the share price over that period.
This approach should work in most market conditions, though a lot will depend on the skill of the manager and the strength of their research. Shorting needs to be handled carefully, as the risks are much greater. Long positions can only go to zero, so investors can only lose what they invested. But selling something you don’t own exposes you to higher potential losses - a share price can grow to many times its original size and therefore so could corresponding losses on short positions. As such, the risk/reward of a short position is different and risk management controls are particularly important.
Long/short funds can have varying levels of exposure to the underlying markets in which they invest, typically equities and fixed income. Market-neutral funds have long and short positions equal to one another, so only profit according to the managers’ hypothesis on the individual stocks, rather than broader market movements. Other funds will have a ‘net-long’ position, where the portfolio will have positive exposure to the broad market and will therefore benefit from equity markets gaining ground. This position will vary from fund to fund, and the manager may also be able to vary exposure over time, so investors need to know the objectives of the fund and investment policy to understand the risks and performance characteristics.