In percentage terms, yesterday's 2.7 percent jump was the largest one-day rise since Aug. 13, 1974, when the index added 7.9 points, or 3.7 percent.

So great was the demand that prices closed with the largest one-day rises on record at the 55-year-old Comex.

Yesterday's gain was the largest one-day rise in silver since Oct. 7, 1982, when the price soared 95 cents.

The Dow Jones industrial average jumped 40.84 points, to 2,559.65, for a one-day rise of more than 1.6 percent.

Stockholm enjoyed the second-biggest one-day rise ever, which left it 7.3% up on the week.

But cold weather and tight supplies pushed prices in the futures market up 6.7 percent yesterday, to $29.48, the biggest one-day rise since October.

It was the biggest one-day rise in the long bond since Jan. 15.

What triggered the 489-point one-day rise in the Dow last week?

That was the largest one-day rise since early August and the highest yield since July, when it reached 7.72 percent.

Despite the one-day rise in Treasury prices and drop in yields, many market participants remain wary.