US STOCKS-Wall St falls on miners, UPS; indexes up for week

* Indexes break three-week streak of losses

* UPS shares tumble nearly 10 pct after outlook

* Materials sector drags after Goldman notes

* Credit Suisse (NYSE: CS - news) cuts Exxon to 'underperform'

* Dow down 0.79 pct, S&P 500 off 0.55 pct, Nasdaq up 0.16 pct (Updates to close)

By Lucas Iberico Lozada

NEW YORK, Jan 23 (Reuters) - U.S. stocks fell modestly on Friday, pressured by underwhelming corporate news including guidance from economic activity bellwether UPS and as materials stocks fell after bearish notes.

Major indexes, however, rose for the first week in four, boosted in part by the European Central Bank's decision on Thursday to further stimulate euro zone growth.

Materials shares weighed on the S&P 500, falling 1.6 percent after Goldman Sachs (NYSE: GS-PB - news) cut its price target on various miners including a 42 percent downward revision to Freeport McMoRan stock to $18. Goldman separately slashed forecasts on commodity prices including aluminum, copper and nickel.

UPS was among the largest drags on the S&P 500 after a gloomy outlook, alongside Exxon Mobil (Swiss: XOM.SW - news) . On Friday Credit Suisse cut Exxon to "underperform."

Declines were capped by bullish investor sentiment after Thursday's move from the European Central Bank, which detailed a bigger-than-expected bond-buying program to lift the region's sagging economy and fight deflation.

"From where we're sitting, we're sensing continuation (from last year), the trend is still the upside," said Gordon Charlop, a managing director at Rosenblatt Securities in New York. "The corrections and the volatility will be a little more pronounced, a little more dramatic, but the trend remains intact."

The Dow Jones industrial average fell 141.38 points, or 0.79 percent, to 17,672.6, the S&P 500 lost 11.33 points, or 0.55 percent, to 2,051.82 and the Nasdaq Composite added 7.48 points, or 0.16 percent, to 4,757.88.

For the week, the Dow rose 0.9 percent, the S&P gained 1.6 percent and the Nasdaq added 2.7 percent.

UPS gave a fourth-quarter earnings outlook that was below expectations, citing a disappointing performance in U.S. domestic ground shipments. Shares (Berlin: DI6.BE - news) slumped 9.9 percent to $102.93.

With 18 percent of S&P 500 companies having reported, 72.2 percent have topped earnings expectations, while 54.4 percent have beaten revenue forecasts, according to Thomson Reuters data. That compares with the long-term average of 63 percent for earnings and 61 percent for revenue.

Starbucks (Swiss: SBUX.SW - news) rose 6.6 percent to $88.22 a day after the coffee chain reported same-store sales growth that was better than expected in its Americas region.

GoPro (Xetra: A1XE7G - news) shares jumped 8.5 percent to $52.48 after a partnership with the U.S. National Hockey League paved the way for players to wear GoPro cameras during league games.

Declining issues outnumbered advancing ones on the NYSE by 1,678 to 1,368, for a 1.23-to-1 ratio on the downside; on the Nasdaq, 1,514 issues fell and 1,207 advanced for a 1.25-to-1 ratio favoring decliners.

The benchmark S&P 500 index was posting 73 new 52-week highs and 6 new lows; the Nasdaq Composite was recording 91 new highs and 56 new lows.

About 6.4 billion shares changed hands on U.S. exchanges, compared to the daily average so far this month of 7.3 billion according to BATS Global Markets data. (Reporting by Lucas Iberico Lozada; Editing by Meredith Mazzilli)