Terms of service
Last updated: 17 May 2026.
About us. CarryCurve is operated by Foreranger Limited, a company incorporated in England and Wales (company number 10535686), registered office C/O Mulberry & Co Eastgate House, Dogflud Way, Farnham, Surrey, England, GU9 7UD. In these terms, "we", "us", "our", and "CarryCurve" refer to Foreranger Limited.
These terms govern your use of CarryCurve at carrycurve.com, the daily Pro digest email, sweet-spot-shift alerts, the data export feature, and the weekly newsletter The CarryCurve Letter. By subscribing or by using the site you agree to these terms.
1. The service
CarryCurve is a daily web-based analytics tool that computes carry and roll-down across four sovereign zero-coupon yield curves — UK gilts, US Treasuries, Government of Canada bonds, and Euro-area AAA-rated government bonds — and identifies the tenor that maximises total expected return for chosen holding horizons, under a static-curve assumption. The methodology is documented at /methodology with per-currency appendices.
Yield curve data is sourced directly from each currency's official publisher: the Bank of England (GBP), the US Department of the Treasury (USD), the Bank of Canada (CAD), and the European Central Bank (EUR). For UK, Canadian and Euro-area sources, CarryCurve consumes the publisher's fitted zero-coupon curve as authoritative — it does not refit, smooth, or otherwise alter the data. For the United States, the Treasury publishes par yields, which CarryCurve bootstraps to zero-coupon rates per the procedure in /methodology/usd.
2. Free and Pro tiers
The free tier is the live curve view at the 1M holding horizon on each of the four currencies (GBP, USD, CAD, EUR), the methodology pages, and the weekly newsletter. The Pro tier (£25/month or £250/year) adds the 3M, 6M, 1Y and custom 1–12 month horizons; 10-year percentile context per currency; ultra-long tenors out to 40y on GBP; the cross-curve ranking view; an analysis-date picker for historical replay; the daily multi-currency digest email; sweet-spot-shift alerts (configurable per currency and per horizon); and currency-aware CSV/JSON data export.
3. Subscriptions, billing and cancellation
- Subscriptions are billed by Stripe Payments Europe Ltd. We never see or store your card number.
- Monthly subscriptions auto-renew each month; annual subscriptions auto-renew each year.
- You can cancel at any time at /account (which redirects you to Stripe's Customer Portal). Cancellation takes effect at the end of the current billing period — your Pro access continues until then.
- You can also delete your account from /account. This cancels the subscription immediately and removes you from active Pro access. A minimal financial record is retained for 6 years per the privacy notice.
- The FOUNDING50 promotion (100% off for the first 3 months on monthly subscriptions, capped at 50 redemptions, launch period only) is offered subject to availability and Stripe's coupon mechanics. Promo codes can be applied at checkout.
- We do not offer pro-rata refunds on a partial month or year of usage. Refunds outside the cancellation flow are at our discretion.
4. How Pro access works
After paying, your Pro state is unlocked by entering the email used at Stripe checkout into the unlock field on the live tool. A signed cookie persists this state for 30 days per browser. There is no password. If you lose access (e.g. cleared cookies, used a different email at checkout) email hello@carrycurve.com.
5. Acceptable use
You agree not to:
- Scrape, mirror, or systematically duplicate CarryCurve outputs for republication;
- Resell, sublicense, or redistribute the data export as a separate product;
- Circumvent the Pro entitlement gate or rate-limits;
- Use the service to misrepresent CarryCurve's outputs as the Bank of England's official numbers (CarryCurve is a derived view; the BoE remains the source of the underlying curve).
The Pro data export is intended for the subscriber's own internal analysis. The Bank of England's general copyright terms apply to any onward use of values derived from BoE data.
6. Disclaimer of warranties
CarryCurve is provided as is and as available. The site, the data, the methodology, and the email channels are provided without warranty of any kind, express or implied — including, without limitation, warranties of merchantability, fitness for a particular purpose, accuracy, completeness, or non-infringement.
The Bank of England's own caveat applies to the underlying yield-curve data: "Every effort has been made to ensure this information is correct but we cannot in any way guarantee its accuracy and you use it entirely at your own risk." CarryCurve adopts the same caveat for any value computed from that data.
7. Not investment advice
CarryCurve is a market-data tool, not investment advice. It does not advise on investments within the meaning of Article 53 of the Financial Services and Markets Act 2000 (Regulated Activities) Order 2001. The tool does not name particular gilts, does not consider any user's circumstances, does not recommend any course of action, and does not produce buy/sell/hold signals. It computes a single, well-defined backward-looking quantity (carry plus roll-down under a static-curve assumption) from public Bank of England data.
You are solely responsible for any investment, trading, or hedging decision you make. Past performance is not indicative of future returns. The static-curve assumption is a methodological idealisation — see methodology §4.7.
8. Limitation of liability
To the maximum extent permitted by law, CarryCurve's total aggregate liability to you for any claim arising out of or related to the service is limited to the amount you have paid us in the 12 months preceding the claim. We are not liable for indirect, consequential, special, or incidental damages, lost profits, or lost opportunities.
Nothing in these terms excludes liability for death or personal injury caused by negligence, for fraud or fraudulent misrepresentation, or for any liability that cannot be excluded under English law.
9. Privacy and data handling
How we handle your personal data is described in the Privacy notice, which forms part of these terms. The third-party processors we rely on — Stripe (payments), Resend (transactional email), Buttondown (newsletter), Fly.io (hosting) — are listed there with links to their privacy policies.
10. Newsletter
The weekly newsletter is free for everyone, regardless of Pro status. Issues are generated and published end-to-end by an automated pipeline; there is no human-written commentary. You can unsubscribe from any issue's footer link, which is handled by Buttondown.
11. Changes to the service or these terms
We may modify or discontinue the service, or update these terms, at any time. Material changes will be notified by email to active subscribers and posted on this page with a new "Last updated" date. Continued use after the effective date constitutes acceptance.
12. Termination
We may suspend or terminate your access if you breach these terms, in which case any remaining paid period is non-refundable. You may terminate your subscription and delete your account at any time via /account.
13. Governing law and jurisdiction
These terms are governed by the laws of England and Wales. The courts of England and Wales have exclusive jurisdiction over any dispute arising from or relating to these terms or the service.