After almost 10 years, Wall Street’s rally looks like it’s ending.

Another day of big losses Friday left the U.S. market with its worst week in more than seven years. All of the major indexes have lost 16 to 26 percent from their highs this summer and fall. Barring huge gains during the upcoming holiday period, this will be the worst December for stocks since 1931.

On Friday:

The S&P 500 index surrendered 50.80 points, or 2.1 percent, to 2,416.62.

The Dow Jones Industrial Average tumbled 414.23 points, or 1.8 percent, to 22,445.37.

The Nasdaq composite skidded 195.41 points, or 3 percent, to 6,332.99.

The Russell 2000 index of smaller-company stocks shed 33.92 points, or 2.6 percent, 1,292.09.

For the week:

The S&P 500 lost 183.33 points, or 7.1 percent.

The Dow fell 1,655.14 points, or 6.9 percent.

The Nasdaq plunged 577.67 points, or 8.4 percent.

The Russell 2000 gave up 118.73 points, or 8.4 percent.

For the year:

The S&P 500 is down 256.99 points, or 9.6 percent.

The Dow is down 2,273.85 points, or 9.2 percent.

The Nasdaq is down 570.40 points, or 8.3 percent.

The Russell 2000 is down 243.43 points, or 15.9 percent.