Carry Strategies.
Harvesting the yield differential between assets — FX carry, rates carry, commodity roll, and volatility carry — compensation for bearing downside and liquidity risk.
Definition
A carry strategy earns the return an asset delivers if prices do not move: the interest differential in currencies, the roll-down of a bond along the yield curve, the futures-curve slope in commodities, the spread between implied and expected realized volatility in options. The systematic implementation goes long high-carry assets and short low-carry assets, cross-sectionally or against funding legs.
Economic rationale
Carry is generally understood as compensation for bearing crash and liquidity risk. The FX carry trade earns steadily while conditions are calm and loses abruptly when funding currencies rally in a risk-off event — a return profile often described as "picking up nickels in front of a steamroller." Priced correctly, that skew is a premium; sized incorrectly, it is a blowup.
How dealers package it
Carry is a core sleeve on every major QIS platform: G10 and EM FX carry baskets, curve carry in rates, calendar-spread carry in commodities, and short-volatility carry structures (covered separately under volatility risk premia). Rulebooks specify ranking methodology, position caps, and — in institutional-grade implementations — explicit de-risking triggers tied to volatility or drawdown levels.
Behavior and role in a portfolio
Carry provides steady accrual with pronounced negative skew, making it a natural pairing against long-convexity sleeves like trend and defensive overlays. Its correlation to risk assets rises exactly when diversification is most needed, which is why multi-asset QIS portfolios cap carry's risk contribution rather than its notional weight.
Key risks and governance notes
- Negative skew: long calm periods punctuated by fast, deep drawdowns; stress tests must weight the tails, not the average.
- Funding-shock sensitivity: unwinds of crowded carry (e.g., yen-funded trades) can cascade across sleeves simultaneously.
- Capacity and liquidity: EM legs can gap; execution assumptions in the backtest deserve independent audit.
This page is an educational reference describing publicly documented strategy structures. It is not investment advice, a recommendation, or an offer of any product. Institutional references summarize the cited firms' own public materials (Risk.net, JPMorgan, Deutsche Bank, RBC Capital Markets, GSAM) and imply no affiliation.