Basis Point Carry

What Is Basis Point Carry?

Basis Point Carry is the annualized income earned from holding a fixed income instrument, expressed in basis points (bps) after deducting the cost of financing the position. Unlike percentage-based yield measures, expressing carry in basis points allows for precise comparison across instruments of different price levels and durations. The concept is central to carry-and-roll analysis, where a trader evaluates not just the static income from a bond or swap but also the expected change in yield (roll) as the instrument ages along the curve.

The calculation is straightforward: for a cash bond, Basis Point Carry equals the bond's yield minus the repo rate used to finance it, expressed per annum in bps. For an interest rate swap or futures contract, it is the carry implied by the forward pricing versus the spot rate. The metric is also used in cross-asset carry frameworks to compare bonds, credit instruments, and even currencies on a common footing.

Why It Matters for Traders

Basis Point Carry is a foundational metric for fixed income portfolio managers, relative-value hedge funds, and macro traders building carry books. When central banks hold rates stable, carry strategies in government bonds can reliably generate 20–80 bps per year in developed markets, modest but consistent with low drawdown risk. In credit markets, high-yield bonds often offer 200–400 bps of carry over funding, but with asymmetric default risk.

The metric becomes especially important during carry regime shifts, for example, when the Federal Reserve begins a hiking cycle, short-dated carry collapses as repo rates rise faster than coupon income. Traders running leveraged carry books in 2-year Treasuries faced sharply negative net carry in 2022–23 as SOFR approached 5.3%, eroding positions that had been profitable for years.

How to Read and Interpret It

• Positive carry (>0 bps): The instrument earns more in yield than it costs to finance, the base case for most long bond positions in normal rate environments.
• Negative carry (<0 bps): Funding costs exceed yield income; position is a drain unless price appreciation compensates. Common in inverted yield curve environments.
• Carry vs. Roll: Traders should always combine carry with roll-down, the expected yield change as a bond seasons toward shorter maturity on a positively sloped curve. A 10-year Treasury might offer 15 bps of annual carry but an additional 8 bps per month of roll in a steep curve environment.
• Threshold: In practice, many relative-value funds require a minimum of 15–20 bps of combined carry-and-roll to justify a leveraged position after transaction costs and margin drag.

Historical Context

During the 2011–2021 era of zero interest rate policy (ZIRP), Basis Point Carry in US Treasuries compressed dramatically. By mid-2021, a 5-year Treasury offered approximately 80 bps yield against near-zero repo funding, creating roughly 78 bps of net carry, attractive enough to sustain massive leveraged positions among hedge funds and foreign reserve managers. When the Fed hiked rates 525 bps between March 2022 and July 2023, repo rates surpassed 5%, turning 2-year Treasury carry deeply negative at roughly -30 bps, triggering the unwind of many leveraged duration trades and contributing to elevated Treasury market volatility.

Limitations and Caveats

Basis Point Carry is a static, backward-looking measure, it reflects today's yield and funding rate but does not account for future rate changes, mark-to-market losses, or collateral calls. A trade with attractive carry can still lose money rapidly if convexity is adverse and yields move sharply. The metric also ignores liquidity risk: a leveraged carry position in less liquid off-the-run Treasuries or EM local bonds may have high nominal carry but severe bid-ask drag on exit.

What to Watch

• The shape of the SOFR forward curve for signals on where carry will migrate as Fed policy evolves.
• Cross-currency carry differentials between US Treasuries and JGBs or Bunds, which drive large FX-hedged flow dynamics.
• Repo specialness in specific Treasury issues, which can dramatically alter realized carry for a given bond.