The Treasury market ended its two-day rally, as investors grew wary ahead of a jobs report due Friday.

Its stock fell nearly 10 percent and helped send the Dow Jones industrial average down 18.90 points, to 7.957.41, snapping a two-day rally.

Prices of Treasury securities fell and interest rates rose in thin trading, ending a two-day rally.

After its two-day rally, the bond market fell back.

The dwindling supply of 30-year bonds set off a huge two-day rally in those securities.

But economists warned yesterday that a two-day rally in stocks and a few economic indicators do not tell a complete picture.

Without that two-day rally, the market would have been down 33.4 percent for the year.

That halted a two-day rally in Pan Am's stock.

The bond market's weakness undermined stocks, ending the market's strong two-day rally.

Stocks closed higher yesterday, cementing a broad two-day rally that more than erased losses earlier in the week.