May 2018

The zero curve on each of 22 trading days this month.

2.2%2.4%2.6%2.8%3.0%3.2%3.4%May 1, 2018May 31, 2018May 1, 20182Y zero rate2.518%10Y zero rate2.983%30Y zero rate3.111%May 2, 20182Y zero rate2.507%10Y zero rate2.985%30Y zero rate3.128%May 3, 20182Y zero rate2.496%10Y zero rate2.960%30Y zero rate3.102%May 4, 20182Y zero rate2.512%10Y zero rate2.957%30Y zero rate3.100%May 7, 20182Y zero rate2.512%10Y zero rate2.962%30Y zero rate3.103%May 8, 20182Y zero rate2.527%10Y zero rate2.982%30Y zero rate3.112%May 9, 20182Y zero rate2.540%10Y zero rate3.014%30Y zero rate3.147%May 10, 20182Y zero rate2.548%10Y zero rate2.984%30Y zero rate3.101%May 11, 20182Y zero rate2.555%10Y zero rate2.981%30Y zero rate3.091%May 14, 20182Y zero rate2.561%10Y zero rate3.006%30Y zero rate3.115%May 15, 20182Y zero rate2.598%10Y zero rate3.086%30Y zero rate3.197%May 16, 20182Y zero rate2.601%10Y zero rate3.101%30Y zero rate3.212%May 17, 20182Y zero rate2.591%10Y zero rate3.122%30Y zero rate3.248%May 18, 20182Y zero rate2.570%10Y zero rate3.073%30Y zero rate3.198%May 21, 20182Y zero rate2.586%10Y zero rate3.071%30Y zero rate3.198%May 22, 20182Y zero rate2.588%10Y zero rate3.075%30Y zero rate3.204%May 23, 20182Y zero rate2.533%10Y zero rate3.024%30Y zero rate3.167%May 24, 20182Y zero rate2.510%10Y zero rate2.994%30Y zero rate3.121%May 25, 20182Y zero rate2.485%10Y zero rate2.950%30Y zero rate3.085%May 29, 20182Y zero rate2.330%10Y zero rate2.795%30Y zero rate2.960%May 30, 20182Y zero rate2.423%10Y zero rate2.861%30Y zero rate3.006%May 31, 20182Y zero rate2.428%10Y zero rate2.852%30Y zero rate2.987%
2Y zero rate10Y zero rate30Y zero rate
Zero rate first, last, low and high for each charted tenor across May 2018.
TenorFirstLastChangeLowHigh
2Y2.518%2.428%-9.0 bp2.330%May 29, 20182.601%May 16, 2018
10Y2.983%2.852%-13.1 bp2.795%May 29, 20183.122%May 17, 2018
30Y3.111%2.987%-12.4 bp2.960%May 29, 20183.248%May 17, 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 May 2018.
Date2 year10 year30 year
May 1, 20182.518%2.983%3.111%
May 2, 20182.507%2.985%3.128%
May 3, 20182.496%2.960%3.102%
May 4, 20182.512%2.957%3.100%
May 7, 20182.512%2.962%3.103%
May 8, 20182.527%2.982%3.112%
May 9, 20182.540%3.014%3.147%
May 10, 20182.548%2.984%3.101%
May 11, 20182.555%2.981%3.091%
May 14, 20182.561%3.006%3.115%
May 15, 20182.598%3.086%3.197%
May 16, 20182.601%3.101%3.212%
May 17, 20182.591%3.122%3.248%
May 18, 20182.570%3.073%3.198%
May 21, 20182.586%3.071%3.198%
May 22, 20182.588%3.075%3.204%
May 23, 20182.533%3.024%3.167%
May 24, 20182.510%2.994%3.121%
May 25, 20182.485%2.950%3.085%
May 29, 20182.330%2.795%2.960%
May 30, 20182.423%2.861%3.006%
May 31, 20182.428%2.852%2.987%

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.