By Ben Eisen, MarketWatch

NEW YORK (MarketWatch) -- Treasury prices climbed Tuesday after a strong auction of 5-year notes, sending benchmark yields back toward their lowest in over a year.

The 10-year Treasury note (10_YEAR) yield, which falls as prices rise, was down 2.5 basis points on the day at 2.465%. In May, the benchmark yield touched its lowest point in over a year at 2.438%.

Tuesday's move comes ahead of a surge of U.S. economic news, including a second-quarter GDP report on Wednesday morning, a statement from the Federal Reserve's policy committee that afternoon, and a nonfarm payrolls report on Friday.

European bond yields also fell on Tuesday, with the 10-year German bund yield dropping 3 basis points to 1.120%, its lowest ever on a closing basis. The 10-year Spanish bond yield fell 2 basis points to 2.474%. It briefly dipped below comparable U.S. Treasurys on a nominal basis.

Treasury prices rose despite stocks trading higher.

Here's what's moving the bond market on Tuesday:

* The Case-Shiller 20-city composite index showed decceleration in the rate of home-price growth. Steven Ricchiuto, chief economist at Mizuho Securities, wrote: "This downshift in prices reflects the fact that the housing market has lost its upside momentum despite the low level of yields."

* Consumer confidence data showed the highest reading since 2007, helping Treasurys cut gains.

* The deteriorating situation between Russia and Ukraine sent continued tremors across the bond market as Western nations agreed to tougher sanctions on Russia.

* Shorter-term maturities in the U.S. Treasurys market posted narrower gains on Monday. Market participants have remained cautious on the so-called belly-of-the-curve, which could be sensitive to shifts in the monetary policy outlook, based on big data releases or the Fed statement this week. That has resulted in a narrowing of the differential between the 5-year note and 30-year bond. Read more about what it means.

The 5-year note (5_YEAR) yield was down a basis point at 1.693%. The 30-year bond (30_YEAR) yield fell 3.5 basis points to 3.237%. The spread between them was last at 1.53 percentage points, its smallest since the beginning of 2009 on a closing basis.

Treasurys also got a boost after an auction of $35 billion in 5-year notes, which came in robust, despite investor nervousness about shorter-term debt. These are the stats from the auction:

* The notes sold at a yield of 1.720%.

* The ratio of bidders to the amount sold was 2.81 times, compared with 2.80 times in the last six sales.

* Direct bidders, which include domestic money managers, showed up in force, buying 25.9% of the sale, compared to 13.6% in recent sales. Indirect bidders, often a proxy for foreign demand, bought up 48.2% of the sale, versus the recent average of 49%. Combined, buyers took down a record amount of debt for an auction of 5-year note, according to Stone & McCarthy Research Associates.

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