U.S. stocks look set to advance Friday and win back a portion of Thursday's Portugal-induced losses, while banking heavyweight Wells Fargo & Co. is expected to extend a run of rising profit.

Investors also will monitor appearances by three Federal Reserve speakers for any comments they may make about the future of interest rates.

Futures for the Dow Jones Industrial Average (DJU4) rose 28 points, or 0.2%, to 16,870, while those for the S&P 500 index (SPU4) gained 3.6 points, or 0.2%, to 1,961.40. The Nasdaq 100 index (NDU4) tacked on 12 points, or 0.3%, to 3,885.50.

Second-quarter results from Wells Fargo & Co. (WFC) are expected to arrive ahead of the opening bell. Earnings at the U.S.'s largest mortgage provider are expected to come in at $1.01 a share. That would compare with 98 cents a share in the year-ago period, according to analysts surveyed by FactSet. Wells Fargo has had 17-straight quarters of rising profits, despite sluggish results from its peers.

Analysts will watch, in part, how Wells Fargo curbed a slowdown in mortgage refinancing because of rising rates.

Worries about the fragility of Europe's banking system triggered losses on Wall Street Thursday, but the S&P 500 index (SPX), the Dow Jones Industrial Average (DJI) and the Nasdaq Composite (RIXF) finished well off session lows.

European stocks were bouncing back Friday after Thursday's drop, which came as Portuguese conglomerate EspĂ­rito Santo International SA this week missed a payment on some short-term debt. That sent shares of its subsidiaries, Banco Espirito Santo AS and Espirito Santo Financial Group SA, spiraling lower.

"The fact Europe is rebounding from yesterday's sell-off is helping cheer Wall Street futures," said Joao Monteiro, analyst at Valutrades, in a note Friday. The Dow industrials are "in easy reach of 17,000, so assuming there are no other surprises -- and based on the assumption that a degree of short covering ahead of the weekend break is as good as inevitable -- then the week could well end on a positive tone in New York."

Fed speakers

With the market trying to pin down when interest rates will be raised by the Federal Reserve, appearances by central bank officials are of interest to investors. In Jackson Hole, Wyo., Philadelphia Fed President Charles Plosser at 11:15 a.m. Eastern Time will moderate a panel on entrepreneurial issues at the Global Interdependence Center's Rocky Mountain Summit.

Plosser -- known as a hawk -- is a voting member of the Fed's policy committee this year. Plosser last month said the federal funds rate should be raised starting in the third quarter, and that rates should be higher because the central bank is nearing its goals faster than many expected.

At 3 p.m. Eastern Time, Charles Evans, the president of the Chicago Fed, and Dennis Lockhart, president of the Atlanta Fed Bank, will be on a panel about success and failures of Fed policy. Lockhart has said he expects short-term rates will be held at zero until the latter half of 2015, while Evans has said it may not be until 2016 that the Fed starts on its rate-hike path. Evans and Lockhart are not voting members on the policy committee this year.

Also on the radar Friday, tobacco giant Reynolds American Inc. (RAI) confirmed that it's in talks with Lorillard Inc. (LO) about a possible acquisition. Lorillard shares rose nearly 5% in premarket trade.

Fastenal Co. (FAST), which makes fasteners, tools and other industrial and construction supplies, reported second-quarter earnings of 44 cents a share on sales of $949.9 million. Analysts polled by Thomson Reuters were expecting per-share earnings of 44 cents on revenue of $952.5 million. Shares fell 3% in scant premarket volume following the results.

An influential broadcaster in China said the location-tracking function in Apple Inc.'s (AAPL) iPhone was a "national security concern," in the latest backlash against U.S. tech firms.

Late Thursday, apparel retailer Gap Inc. (GPS) reported an unexpected 2% drop in same-store sales in June. Shares fell more than 1% in late trading Thursday.

In other markets Friday, crude for August delivery (CLQ4) fell 37 cents, or 0.4%, to $102.55 a barrel. August gold (GCQ4) fell 50 cents to $1,338.70 an ounce. Overnight in Asia, Japan's Nikkei Average fell 0.3% and Hong Kong's Hang Seng Index ended flat.