FAP, May 30 (Xinhua)-- US 10-to-30-year Treasury futures rose on Monday with light trading as traders expected a series of supporting factors. These factors are expected to play a role when the market resumes trading on Tuesday after the Memorial Day holiday. These factors include rising expectations that the Fed will raise interest rates again in June or July, and market expectations that the passage of the debt ceiling bill will lead to a flood of Treasury issuance or the withdrawal of liquidity from financial markets, which could dampen the performance of risky assets. In addition, this week coincides with a month-end rebalancing of the Treasury index to include a large number of quarterly new 10-year and 30-year Treasuries, which could boost demand for these varieties.