September 2018

The zero curve on each of 19 trading days this month.

2.6%2.7%2.8%2.9%3.0%3.1%3.2%3.3%Sep 4, 2018Sep 28, 2018Sep 4, 20182Y zero rate2.651%10Y zero rate2.892%30Y zero rate3.088%Sep 5, 20182Y zero rate2.646%10Y zero rate2.896%30Y zero rate3.094%Sep 6, 20182Y zero rate2.638%10Y zero rate2.875%30Y zero rate3.077%Sep 7, 20182Y zero rate2.701%10Y zero rate2.935%30Y zero rate3.120%Sep 10, 20182Y zero rate2.703%10Y zero rate2.925%30Y zero rate3.099%Sep 11, 20182Y zero rate2.741%10Y zero rate2.968%30Y zero rate3.137%Sep 12, 20182Y zero rate2.740%10Y zero rate2.948%30Y zero rate3.130%Sep 13, 20182Y zero rate2.745%10Y zero rate2.951%30Y zero rate3.125%Sep 14, 20182Y zero rate2.774%10Y zero rate2.978%30Y zero rate3.150%Sep 17, 20182Y zero rate2.771%10Y zero rate2.977%30Y zero rate3.149%Sep 18, 20182Y zero rate2.795%10Y zero rate3.043%30Y zero rate3.211%Sep 19, 20182Y zero rate2.805%10Y zero rate3.068%30Y zero rate3.241%Sep 20, 20182Y zero rate2.798%10Y zero rate3.066%30Y zero rate3.216%Sep 21, 20182Y zero rate2.798%10Y zero rate3.062%30Y zero rate3.215%Sep 24, 20182Y zero rate2.809%10Y zero rate3.068%30Y zero rate3.224%Sep 25, 20182Y zero rate2.818%10Y zero rate3.087%30Y zero rate3.237%Sep 26, 20182Y zero rate2.801%10Y zero rate3.054%30Y zero rate3.203%Sep 27, 20182Y zero rate2.817%10Y zero rate3.048%30Y zero rate3.197%Sep 28, 20182Y zero rate2.794%10Y zero rate3.045%30Y zero rate3.206%
2Y zero rate10Y zero rate30Y zero rate
Zero rate first, last, low and high for each charted tenor across September 2018.
TenorFirstLastChangeLowHigh
2Y2.651%2.794%+14.3 bp2.638%Sep 6, 20182.818%Sep 25, 2018
10Y2.892%3.045%+15.3 bp2.875%Sep 6, 20183.087%Sep 25, 2018
30Y3.088%3.206%+11.8 bp3.077%Sep 6, 20183.241%Sep 19, 2018

Rates are percent; the change column is basis points. A rise in yield is a fall in price, so the colours here describe the rate rather than a bondholder's return.

Every trading day

Zero rate at 2, 10 and 30 years for every fitted trading day in September 2018.
Date2 year10 year30 year
Sep 4, 20182.651%2.892%3.088%
Sep 5, 20182.646%2.896%3.094%
Sep 6, 20182.638%2.875%3.077%
Sep 7, 20182.701%2.935%3.120%
Sep 10, 20182.703%2.925%3.099%
Sep 11, 20182.741%2.968%3.137%
Sep 12, 20182.740%2.948%3.130%
Sep 13, 20182.745%2.951%3.125%
Sep 14, 20182.774%2.978%3.150%
Sep 17, 20182.771%2.977%3.149%
Sep 18, 20182.795%3.043%3.211%
Sep 19, 20182.805%3.068%3.241%
Sep 20, 20182.798%3.066%3.216%
Sep 21, 20182.798%3.062%3.215%
Sep 24, 20182.809%3.068%3.224%
Sep 25, 20182.818%3.087%3.237%
Sep 26, 20182.801%3.054%3.203%
Sep 27, 20182.817%3.048%3.197%
Sep 28, 20182.794%3.045%3.206%

Index levels before September 30, 2026 are back-tested. They were computed after the fact by applying the rules to historical data, which benefits from hindsight in the choice of rules, and an index cannot be invested in directly. Methodology v1.0 takes effect at that rebalance, when levels begin to be struck on the day; the rulebook is identical either way, and the version is published on every row.

A fitted curve is a fit, not a quote. Daily error averages 3.8 basis points across the history and reaches about 20 on the worst days, in December 2008, when the market was genuinely hard to fit one smooth curve to. Every curve page publishes its own fit error rather than burying it.

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Curves are fitted from public Treasury data and carry fit error; figures are not a record of trading, and an index cannot be invested in directly. No claim of compliance with the IOSCO Principles for Financial Benchmarks is made or implied. Not investment advice, not an offer, and not a recommendation to buy or sell any security.