NEW YORK (CNNMoney.com) -- Treasurys fell Friday morning but erased losses by the end of the session, as traders remained skeptical of the developments concerning Greece's debt problems.
What prices are doing: The benchmark 10-year note rose slightly, driving the yield down to 3.89%. Earlier this week, prices on the 10-year note fell and investors saw a 4% yield -- the first time the note had reached that level since October 2008, the height of the financial crisis.
Bond prices and yields move in opposite directions, so when prices drop, yields rise.
On Friday, the yield of the 30-year bond fell to 4.75%. The yield of the 5-year note held steady at 2.67%.
What's moving the market: Earlier in the session, Treasury prices were down as the market reabsorbed new supply from debt sales earlier this week. The auctions, which totaled $82 billion, drew strong demand as escalating concerns about Greece made U.S. debt an attractive buy for foreign investors.
The appealing 4% rate on the 10-year note also lured investors in earlier in the week.
Greece's debt problems continued to worry investors, as Fitch Ratings cut its debt-challenge credit rating by two notches Friday.
What analysts are saying: "The response to the Treasury auctions was unexpectedly enthusiastic this week," said Pierre Ellis, a senior managing director at Decision Economics.
Meanwhile, analysts aren't expecting any major economic reports to move the markets until next Wednesday, when the government reports its key inflation reading, the Consumer Price Index, for March. Wednesday also brings the latest retail sales numbers and the Federal Reserve's Beige Book -- a snapshot of regional economic conditions.
Good news on those fronts, pointing to an economic recovery, could drive Treasury prices down and the 10-year yield back up toward the 4% mark. 
| Overnight Avg Rate | Latest | Change | Last Week |
|---|---|---|---|
| 30 yr fixed | 3.80% | 3.88% | |
| 15 yr fixed | 3.20% | 3.23% | |
| 5/1 ARM | 3.84% | 3.88% | |
| 30 yr refi | 3.82% | 3.93% | |
| 15 yr refi | 3.20% | 3.23% |
Today's featured rates:
| Index | Last | Change | % Change |
|---|---|---|---|
| Dow | 32,627.97 | -234.33 | -0.71% |
| Nasdaq | 13,215.24 | 99.07 | 0.76% |
| S&P 500 | 3,913.10 | -2.36 | -0.06% |
| Treasuries | 1.73 | 0.00 | 0.12% |
| Company | Price | Change | % Change |
|---|---|---|---|
| Ford Motor Co | 8.29 | 0.05 | 0.61% |
| Advanced Micro Devic... | 54.59 | 0.70 | 1.30% |
| Cisco Systems Inc | 47.49 | -2.44 | -4.89% |
| General Electric Co | 13.00 | -0.16 | -1.22% |
| Kraft Heinz Co | 27.84 | -2.20 | -7.32% |
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