US Treasury rates, January 2019

Zero rates at all 10 fitted maturities on each of 21 trading days this month. Zero rates, not par yields: these discount a single cashflow, and the par yield for the same day is on that day's own page.

2.4%2.6%2.8%3.0%3.2%Jan 2, 2019Jan 31, 2019Jan 2, 20192Y zero rate2.512%10Y zero rate2.669%30Y zero rate3.014%Jan 3, 20192Y zero rate2.403%10Y zero rate2.575%30Y zero rate2.962%Jan 4, 20192Y zero rate2.511%10Y zero rate2.673%30Y zero rate3.018%Jan 7, 20192Y zero rate2.548%10Y zero rate2.704%30Y zero rate3.037%Jan 8, 20192Y zero rate2.590%10Y zero rate2.727%30Y zero rate3.043%Jan 9, 20192Y zero rate2.571%10Y zero rate2.741%30Y zero rate3.072%Jan 10, 20192Y zero rate2.568%10Y zero rate2.745%30Y zero rate3.099%Jan 11, 20192Y zero rate2.547%10Y zero rate2.717%30Y zero rate3.089%Jan 14, 20192Y zero rate2.543%10Y zero rate2.725%30Y zero rate3.115%Jan 15, 20192Y zero rate2.536%10Y zero rate2.724%30Y zero rate3.144%Jan 16, 20192Y zero rate2.552%10Y zero rate2.742%30Y zero rate3.120%Jan 17, 20192Y zero rate2.575%10Y zero rate2.766%30Y zero rate3.115%Jan 18, 20192Y zero rate2.613%10Y zero rate2.796%30Y zero rate3.133%Jan 22, 20192Y zero rate2.581%10Y zero rate2.752%30Y zero rate3.101%Jan 23, 20192Y zero rate2.588%10Y zero rate2.765%30Y zero rate3.107%Jan 24, 20192Y zero rate2.563%10Y zero rate2.729%30Y zero rate3.075%Jan 25, 20192Y zero rate2.596%10Y zero rate2.760%30Y zero rate3.103%Jan 28, 20192Y zero rate2.592%10Y zero rate2.755%30Y zero rate3.107%Jan 29, 20192Y zero rate2.570%10Y zero rate2.721%30Y zero rate3.087%Jan 30, 20192Y zero rate2.517%10Y zero rate2.705%30Y zero rate3.116%Jan 31, 20192Y zero rate2.461%10Y zero rate2.630%30Y zero rate3.057%
2Y zero rate10Y zero rate30Y zero rate
Zero rate first, last, low and high for each charted tenor across January 2019.
TenorFirstLastChangeLowHigh
2Y2.512%2.461%-5.1 bp2.403%Jan 3, 20192.613%Jan 18, 2019
10Y2.669%2.630%-3.8 bp2.575%Jan 3, 20192.796%Jan 18, 2019
30Y3.014%3.057%+4.3 bp2.962%Jan 3, 20193.144%Jan 15, 2019

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 each of the 10 fitted maturities, for every fitted trading day in January 2019.
Date1Y2Y3Y5Y7Y10Y15Y20Y25Y30Y
Jan 2, 20192.564%2.512%2.471%2.479%2.548%2.669%2.821%2.915%2.974%3.014%
Jan 3, 20192.490%2.403%2.349%2.358%2.438%2.575%2.747%2.852%2.918%2.962%
Jan 4, 20192.555%2.511%2.472%2.481%2.551%2.673%2.826%2.920%2.978%3.018%
Jan 7, 20192.574%2.548%2.515%2.524%2.589%2.704%2.851%2.942%2.999%3.037%
Jan 8, 20192.604%2.590%2.561%2.566%2.623%2.727%2.865%2.951%3.006%3.043%
Jan 9, 20192.588%2.571%2.543%2.558%2.626%2.741%2.888%2.977%3.034%3.072%
Jan 10, 20192.584%2.568%2.541%2.555%2.624%2.745%2.901%2.997%3.058%3.099%
Jan 11, 20192.578%2.547%2.513%2.522%2.592%2.717%2.880%2.981%3.045%3.089%
Jan 14, 20192.566%2.543%2.510%2.522%2.595%2.725%2.896%3.002%3.069%3.115%
Jan 15, 20192.558%2.536%2.513%2.530%2.599%2.724%2.898%3.015%3.092%3.144%
Jan 16, 20192.566%2.552%2.526%2.542%2.615%2.742%2.908%3.011%3.076%3.120%
Jan 17, 20192.579%2.575%2.555%2.576%2.646%2.766%2.919%3.014%3.074%3.115%
Jan 18, 20192.600%2.613%2.601%2.620%2.684%2.796%2.943%3.035%3.094%3.133%
Jan 22, 20192.584%2.581%2.558%2.571%2.636%2.752%2.904%3.000%3.060%3.101%
Jan 23, 20192.583%2.588%2.570%2.587%2.651%2.765%2.914%3.007%3.067%3.107%
Jan 24, 20192.573%2.563%2.539%2.550%2.614%2.729%2.880%2.974%3.035%3.075%
Jan 25, 20192.593%2.596%2.576%2.588%2.649%2.760%2.908%3.002%3.063%3.103%
Jan 28, 20192.590%2.592%2.570%2.581%2.642%2.755%2.907%3.004%3.066%3.107%
Jan 29, 20192.581%2.570%2.542%2.546%2.606%2.721%2.878%2.979%3.043%3.087%
Jan 30, 20192.550%2.517%2.487%2.500%2.573%2.705%2.882%2.994%3.067%3.116%
Jan 31, 20192.511%2.461%2.425%2.433%2.502%2.630%2.808%2.926%3.004%3.057%

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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