海角大神

While the聽Republican Party聽won't assume its聽Senate聽majority until January, U.S. stock investors are already betting the new congressional makeup could lead to faster action on pipelines and trade agreements, sending聽energy聽shares higher on Wednesday.

Wall Street rose broadly in its first session after midterm elections, but聽energy聽and medical device companies - two sectors that could see a more direct impact from legislative measures - had outsized moves.

鈥淵esterday, the American people chose to elect a Senate that can stand up to the President and make him work to find compromise,鈥� said Mike Duncan, president and CEO of American Coalition for Clean Coal Electricity, in a statement Wednesday. 鈥淚 am optimistic this sea change will 鈥� put energy policy making back in the hands of Congress where it belongs.鈥�

Part of the broader market's move came on relief that the聽Senate聽majority party was not in doubt; investors had been concerned some close races would be forced into run-offs, an outcome that could have delayed knowing who would control聽Congress's upper chamber for weeks.

"It had looked like some of the races would be very close and that we might not know who controlled theSenate, but in the end, the results were pretty decisive," said聽John Carey, portfolio manager at聽Pioneer Investment Management聽in聽Boston. "That's good news for the industries that had been subject to regulatory issues."

The聽S&P聽Energy聽sector rose 1.5 percent on hopes Republican control of the聽Senate聽will lead to reforms in crude and natural gas export laws, as well as motivate the Obama administration to include those聽energy聽exports in new, or broader, trade agreements.

TransCanada Corp had one of the聽biggest聽election-related bounces, jumping 2.4 percent to $49.51 on the New York Stock Exchange. The Canadian company's Keystone XL pipeline project may find easier approval with a Republican-led聽Senate.

The jump in聽energy聽was partially fueled by its recent weakness. The group is the sole industry group in the S&P 500 with negative year-to-date returns, pressured by a massive drop in the price of crude oil.

Other issues that may also find traction under Republicans include a potential repeal of the medical-device tax that is part of the Affordable Care Act, which could benefit the healthcare technology sector. Medical device maker聽Stryker聽rose 0.3 percent to $87.91, roughly in line with the broader market, while Medtronic Inc added 1.3 percent to $68.87.

On the downside, casino stocks were sharply weaker. MGM Resorts sank 3.8 percent to $21.48, while Las Vegas Sands was off 2.7 percent at $58.07. Some had speculated that Republicans could try to slow adoption of online gaming, which was聽seen聽as boosting the group.

Beyond that, with Republicans controlling both houses of聽Congress聽and a Democrat in the聽White House, political analysts expect more of the gridlock that has characterized most of the six years of President聽Barack Obama's tenure.

Republicans also strengthened their grip on the U.S. House of Representatives and when the new聽Congress聽takes over in January, Republicans will be in charge of both chambers for the first time since elections in 2006.

While the Republicans don't have a large enough majority in either the House of聽Senate聽to override a filibuster or veto, it is possible an emboldened party will attempt to force budget cuts and consider another battle over the debt ceiling in 2015.

Such actions could sap market confidence, as occurred in recent such battles, most notably in 2011, when a budget fight led to the first-ever downgrade of the U.S. credit rating.

"Republicans who want to make a run for control of the executive branch in 2016 will likely strike a tone of compromise," said聽Jacobsen, but "those on the fringe will likely look to turn the showdown into a shutdown."