Long-short equity is the oldest and most widely practised hedge fund strategy, accounting for a substantial share of global hedge fund assets under management. The essential idea is simple: a fund buys shares it expects to rise (long positions) and simultaneously sells short shares it expects to fall, with the combination generating returns from stock selection skill on both sides of the book while reducing sensitivity to the overall direction of equity markets.
In practice, the strategy spans a wide spectrum from highly market-neutral portfolios to directionally tilted funds with substantial net long exposure. Understanding the mechanics, the metrics that matter, and the performance history is essential before allocating capital.
Capital is at risk. Long-short equity strategies can lose money on both long and short positions simultaneously. Short selling involves the risk of unlimited theoretical losses. This guide is for information only and does not constitute regulated investment advice.
Net and Gross Exposure
Two metrics define a long-short portfolio's risk profile:
Gross exposure is the sum of long exposure and short exposure (both expressed as positive numbers). A fund with 100% long and 60% short has 160% gross exposure, meaning it is deploying more capital in total than its fund size. Leverage amplifies both gains and losses.
Net exposure is the difference: long minus short. The same fund above has 40% net long exposure, meaning it has the directional risk equivalent of a 40% allocation to equities. A market-neutral fund targets 0% net exposure; a "long-biased" L/S fund might run 60–80% net long.
Higher gross exposure means more capital is at work (and more costs from borrowing shares for the short book). Lower net exposure means less sensitivity to market direction but more dependence on the spread between longs and shorts performing as expected.
Pair Trades
A pair trade involves simultaneously buying one company and shorting a competitor or closely related peer. The bet is on relative performance, not absolute direction. For example: buying a European luxury goods company while shorting a domestic retail competitor, betting that the former will outperform as consumer spending shifts toward aspirational goods.
Pair trades reduce market risk because both legs tend to move in the same direction in a broad market move, with the long and short partially offsetting. However, they introduce basis risk: if the pair relationship breaks down for idiosyncratic reasons (a management scandal at the long, a surprise takeover bid for the short), both legs can move against the investor simultaneously.
Sector Long-Short
Many L/S equity funds concentrate their activity within specific sectors — technology, healthcare, financials, energy — where the portfolio manager has deep expertise. Sector concentration can improve analytical edge but reduces diversification: a sector-specific long-short fund is heavily exposed to sector-wide moves that affect both longs and shorts.
Healthcare L/S funds have historically offered attractive risk-adjusted returns because the sector features asymmetric events (clinical trial successes and failures) that are poorly priced by markets and offer genuine skill-based opportunities on both sides.
Market-Neutral Variant
A market-neutral strategy targets zero beta to the equity market — all returns should derive from stock selection rather than market direction. Achieving true market neutrality requires constant rebalancing as individual positions' betas shift, and is technically demanding.
Market-neutral L/S funds are often classified as statistical arbitrage or quantitative strategies when their pair selection is algorithm-driven rather than fundamental. The distinction between fundamental and quantitative L/S is important: fundamental managers rely on deep research and company analysis; quant L/S managers exploit statistical patterns in large datasets.
Market-neutral funds generally exhibit lower return and lower volatility than directional L/S — the removal of market beta removes both upside and downside from broad market moves.
Performance Fee Structures
Hedge funds typically charge a management fee of 1–2% of assets per annum and a performance fee of 15–20% of profits above a defined hurdle or high-water mark.
The high-water mark (HWM) means the performance fee is only charged on gains above the fund's previous NAV peak. If the fund loses 10% and subsequently recovers, no performance fee is paid on the recovery — only on gains above the prior high.
The hurdle rate (commonly a cash benchmark such as SOFR or LIBOR historically) means performance fees are only charged on returns above the benchmark. Not all funds incorporate a hurdle.
The 2-and-20 model (2% management fee, 20% performance) has become less common in its pure form as institutional pressure has reduced fees, particularly at larger funds. Many funds now offer separate fee tiers for large institutional allocators.
Critics of performance fees note the asymmetry: managers benefit from upside but do not share in losses (beyond the loss of future fee income). This creates incentives to take risk, particularly when a fund is below its high-water mark.
UCITS Access and Limitations
UCITS (Undertakings for Collective Investment in Transferable Securities) regulations provide a framework for European fund managers to offer hedge-style strategies to a broader investor base. UCITS L/S funds are available from numerous managers and typically offer:
- Daily or weekly liquidity
- Regulated structure with custodian requirements
- Lower minimum investments than offshore funds
- Constraints on leverage, concentration and use of derivatives
UCITS constraints can limit strategy implementation:
- Maximum gross leverage is regulated, restricting highly leveraged market-neutral approaches
- Short selling must be achieved synthetically via UCITS-eligible derivatives (typically swaps or contracts for difference), rather than direct stock borrowing — which adds cost and basis risk
- Concentration limits restrict how aggressively a manager can size their highest-conviction ideas
The result is that a UCITS L/S fund may deliver a somewhat diluted version of the same strategy in its offshore form. Investors should examine whether the track record being marketed was generated in the UCITS or the offshore fund.
2022 Performance: The Short Book Finally Paid
Long-short equity endured a painful period from 2020 to early 2022. The low-rate, high-growth environment drove highly valued technology and growth stocks relentlessly higher, repeatedly burning short sellers. Many L/S managers de-grossed (reduced both long and short exposure) to limit damage to their short books.
2022 reversed this with considerable force. Rising interest rates and the repricing of high-growth technology stocks produced significant declines in the very names that had punished short sellers for years. Many long-short managers — particularly those running quality value longs against short positions in unprofitable technology companies — generated their best returns in years. Quantitative equity market-neutral strategies performed particularly well during 2022's directional trend.
2023 rebounded strongly, as technology stocks recovered dramatically and the AI narrative drove highly concentrated equity market gains. Managers with short exposure to mega-cap technology faced significant pain.
The lesson of the 2020–2023 period is that long-short equity performance is highly path-dependent. The strategy does not simply hedge equity beta — it introduces active views and the manager's willingness to maintain short convictions through adverse periods is a major performance driver.
Due Diligence Considerations
For investors evaluating L/S equity managers:
- Attribution: what proportion of historical returns came from longs, shorts, and net directional exposure?
- Short book history: has the manager ever successfully maintained a material short book through an adverse market?
- Risk management: position limits, stop-loss disciplines, gross exposure controls
- Capacity: L/S strategies can become capacity-constrained, particularly in small and mid-cap stocks
- Consistency of approach: strategy drift is common; verify the current portfolio is consistent with historical positioning
How Global Investments Can Help
Long-short equity offers genuine diversification and the potential for genuine alpha, but manager selection is the primary determinant of outcomes — the dispersion between top-quartile and median L/S managers is wide. Our alternatives advisory team can evaluate UCITS and offshore long-short equity managers across their full performance history including drawdown periods, conduct portfolio fit analysis, and help you identify managers with transparent attribution and demonstrable short-side skill.
Contact us to discuss how long-short equity might reduce the directionality of your equity portfolio while maintaining return potential.
This guide is for general information only and does not constitute financial advice or a personal recommendation. The value of investments can fall as well as rise and you may get back less than you invest. Past performance is not a guide to future returns. Tax rules, investment regulations, and the availability of specific investment vehicles change — always verify current rules and seek advice from a qualified independent financial adviser before making any investment decisions.