Updated from 5:57 a.m. ET
 
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Here are five things you must know for Tuesday, July 18:
 
1. -- U.S. stock futures rose slightly on Tuesday, July 18, while European shares were mostly lower and Asian shares traded mixed after Senate Republicans' efforts to repeal and replace Obamacare collapsed.
 
Two more GOP senators announced they would vote no in an initial, critical vote on the healthcare bill that was expected as soon as next week. With only a two-seat majority in the Senate, the chances of passing the re-written bill look slim, which makes the odds of successful tax reform less likely between now and the end of the year.
 
The setback sent the dollar to 10-month lows against a basket of six global currencies, with the dollar index trading 0.52% lower at 94.65.
 
Senate Majority Leader Mitch McConnell said the Senate would vote on legislation to repeal Obamacare in the coming days, but with a two-year transition period for a replacement to be written.
 
The economic calendar in the U.S. on Tuesday includes Import and Export Prices for June at 8:30 a.m. ET, and the Housing Market Index for July at 10 a.m. 
 
2. -- Netflix Inc. ( NFLX)  shares were rising 11% in premarket trading on Tuesday after the streaming giant added more subscribers than expected both domestically and internationally in the second quarter.
 
The company said it added 1.07 million new U.S. subscribers during the quarter, trouncing analysts' predictions of 631,000 new domestic subscribers. Netflix added 4.1 million new international subscribers, blowing away estimates of 2.6 million.
 
Adjusted earnings in the second quarter were 15 cents a share, which missed forecasts by a penny. But revenue of $2.78 billion surpassed analysts' estimates and the company gave an upbeat outlook for the third quarter.
 
The stock is expected to open at a record $179.50, extending its year-to-date gain to above 31%.
 
3. -- UnitedHealth Group Inc. ( UNH)  reported second-quarter adjusted profit of $2.46 a share, topping forecasts of $2.38.
 
Johnson & Johnson ( JNJ) earned an adjusted $1.83 a share in the second quarter, beating estimates by 4 cents, and the company raised its earnings outlook for 2017.
 
Bank of America Corp. ( BAC)  posted a second-quarter profit of 46 cents a share, above forecasts of 43 cents.
 
Earnings are also expected Tuesday from Goldman Sachs Group Inc. ( GS) , TD Ameritrade Holding Corp. ( AMTD) , International Business Machines Corp. ( IBM) , Harley-Davidson Inc. ( HOG) , United Continental Holdings Inc. ( UAL) , CSX Corp. ( CSX) and Lockheed Martin Corp. ( LMT) .
 

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