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Here are five things you must know for Monday, Dec. 19:

1. -- U.S. stock futures pointed to gains for Wall Street on Monday as the rally in the dollar faded and global shares traded mostly to the downside.

The U.S. dollar traded at 102.84 against a basket of six global currencies early Monday, stabilizing after advancing sharply following the U.S. presidential elections in November.

West Texas Intermediate crude oil rose 0.6% to $52.21 a barrel.

The economic calendar in the U.S. on Monday is relatively empty. Federal Reserve Chair Janet Yellen is scheduled to speak on the state of the job market at the University of Baltimore 2016 Midyear Commencement in Baltimore at 1:30 p.m. EST.

Homebuilder Lennar (LEN) - Get Report  posted fiscal fourth-quarter earnings of $1.34 a share, compared with year-earlier earnings of $1.21 a share, as deliveries rose 7% and new orders of homes jumped 9%.

2. -- The Irish government said it would publish a full legal argument Monday in its appeal against the European Commission's tax ruling on Apple (AAPL) - Get Report

The commission said in August that Ireland granted illegal tax benefits to Apple that allowed it to pay "substantially" less tax than other businesses over many years, and ordered Ireland to recover €13 billion ($13.6 billion) plus interest from the world's biggest tech company. 

In a brief statement outlining its arguments, Ireland's Finance Ministry accused the commission of misapplying state aid law and misunderstanding Irish law and exceeding its authority.

"Ireland does not accept the commission analysis," the Finance Ministry said in a statement. "Ireland did not give favorably tax treatment to Apple -- the full amount was paid in this case and no state aid was provided. Ireland does not do deals with taxpayers." 

Shares of Apple fell slightly in premarket trading on Monday. Reuters reported senior executives at Apple said the company would launch a legal challenge this week to the European Commission's tax demands, arguing that regulators ignored tax experts and corporate law and deliberately picked a method to maximize the penalty.

Apple is a holding in Jim Cramer's Action Alerts PLUS Charitable Trust Portfolio. Want to be alerted before Cramer buys or sells AAPL? Learn more now.

3. -- Two deals in the oil patch were announced Monday: Royal Dutch Shell (RDS.A) completed the sale of its one-third stake in Showa Shell Sekiyu to Idemitsu Kosan (IDKOY)  for $1.35 billion, while BP (BP) - Get Report said Monday it plans to invest nearly $1 billion to develop gas resources off the coast of northwest Africa.

4.-- Fairfax Financial Holdings (FRFHF)  of Canada reached an agreement to acquire Swiss insurance company Allied World Assurance (AWH) for $4.9 billion in cash and stock.

Allied World shareholders will receive $54 share -- $10 in cash and $44 in Fairfax stock -- which represents an 18% premium to Allied World's closing price Friday of $45.77.

5. -- Rogue One: A Star Wars Story was the winner at the box office over the weekend, scoring the second-best opening in December ever with $155 million in estimated ticket sales.

After the biggest Thursday night debut of the year, the moved topped industry expectations for a $130 million weekend, according Sunday's studio estimates. Rogue One opened at No. 1 in all markets globally, though it has yet to open in China and Korea.

The record-setter in December was Star Wars: The Force Awakens, the space saga's seventh installment, which debuted with $247.9 million in the U.S. and Canada last December.