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Here are 10 things you should know for Thursday, June 23:
1. -- U.S. stock futures were rising Thursday and European shares gained as Great Britain voted on whether to remain in the European Union.
The polling stations close at 10 p.m. London time -- 5 p.m. EDT -- with a clear indication of which way the voting is going likely to emerge from about 11 p.m. EDT.
The pound has surged over the week amid market optimism that uncertainty over the vote would end with a vote for the U.K. to stay in the EU. The pound briefly hit $1.48 in overnight trading, the highest level since the beginning of the year.
2. -- The economic calendar in the U.S. Thursday includes weekly Initial Jobless Claims at 8:30 a.m. EDT, and New Home Sales for May at 10 a.m.
3. -- U.S. stocks on Wednesday finished with slight losses as Wall Street couldn't commit to a direction ahead of the "Brexit" referendum.
The S&P 500 declined 0.17%, the Dow Jones Industrial Average fell 0.27%, and the Nasdaq slipped 0.22%.
4. -- More than 46 million people in Great Britain are registered to vote Thursday in the referendum, which asks: "Should the United Kingdom remain a member of the European Union or leave the European Union?"
"This is, I'd say, the most important day in the past 20 years, at least for the U.K., and the economic consequences of a vote out are huge," investment banker Hasan Naqvi told the Associated Press outside a London polling station.
"Leave" campaigners claim that only a British exit can restore power to Parliament and control immigration. The "remain" campaign led by Prime Minister David Cameron argues that Britain is safer and richer inside the 28-nation EU.
5. -- Bank of America (BAC - Get Report) has been in discussions with U.S. regulators about paying $400 million to $450 million to settle allegations it violated rules designed to safeguard client accounts, The Wall Street Journal reported, citing people familiar with the matter.
The Securities and Exchange Commission has been investigating whether Bank of America had proper controls for some customer accounts and retail brokerage funds. One of the issues is whether the bank used complicated trades and loans to free up billions of dollars in cash for its own uses that it would usually have had to set aside to meet regulatory requirements, people familiar with the inquiry said.
A settlement could be announced as soon as Thursday. A Bank of America spokesman declined to comment for the Journal, as did a spokeswoman for the SEC.
6. -- Red Hat (RHT) agreed to acquire 3scale, an application programming interface management technology provider, for an undisclosed amount. The deal is expected to close this month.
Red Hat said the deal will have no material impact on revenue for the fiscal second quarter ending Aug. 31, but non-GAAP operating expenses will increase by $1.5 million, or 1 cent a share. For the fiscal year, non-GAAP operating expenses are expected to rise by $5 million, or 3 cents.
Red Hat reported fiscal first-quarter adjusted earnings of 50 cents a share, matching Wall Street estimates. The open-source software company posted revenue of $567.9 million in the period, topping forecasts.
For the current quarter ending in September, Red Hat said it expects earnings of 54 cents a share on revenue of $587 million to $593 million.
Red Hat said it expects full-year adjusted earnings in the range of $2.19 to $2.23 per share; analysts have been forecasting $2.24. The forecast takes into account the 3scale acquisition.
7. -- Twilio's initial public offering was priced at $15 a share, with the company raising a more-than-expected $150 million.
The shares are expected to begin trading Thursday on the New York Stock Exchange under symbol "TWLO."
Twilio, which enables developers to build applications that can interact with customers, whether it is messaging, video or voice, last sold shares to private investors at $11.31 a share, according to a regulatory filing, valuing the company at about $1 billion, the Journal reported.
8. -- Viacom's (VIAB - Get Report) directors can stay in place, at least for now, as a Delaware judge said at a hearing Wednesday that a legal fight over who should sit on the media company's board may turn on the mental competence of 93-year-old controlling shareholder Sumner Redstone, Reuters reported.
Redstone and his National Amusements holding company last week removed five of Viacom's directors, including CEO Philippe Dauman and lead independent director Frederic Salerno, from the company's board.
Redstone and National Amusements sought the approval of the Court of Chancery in Delaware to kick off the board members, Reuters reported. Salerno filed a lawsuit in the same court last week seeking to block the move.
Judge Andre Bouchard on Wednesday said he planned to hold a hearing in July to listen to arguments about whether National Amusements' move was valid, according to Reuters.
He quizzed attorneys on both sides on how the issue of Redstone's mental competence factored into their arguments, indicating he was reticent to weigh in on the issue himself.
"There are underlying issues of competency that might be relevant," Bouchard said, noting that a Massachusetts court is looking into the issue in separate litigation.
The two sides told the judge they anticipated reaching an agreement later this week that would leave Viacom's board in place but would also prohibit any of the directors from taking any actions outside ordinary day-to-day operations, including its planned minority stake sale of Paramount Pictures, Reuters reported.
Revenue was $2.74 billion, which also came in below forecasts.
Bed Bath & Beyond said it sees full-year earnings "to be comfortably" within its previous guidance of $4.50 to about $5 a share.