Stock futures were slightly lower on Tuesday as key earnings from the likes of Netflix (NFLX - Get Report) disappointed investors, while U.S. housing starts edged forward. 

S&P 500 futures were down 0.24%, Dow Jones Industrial Average futures were flat, and Nasdaq futures slid 0.24%.

Wall Street was on track to pull below records set on Monday. The S&P 500 and Dow rose to new records with only slight effort as a rally in tech helped to offset weakness in oil and political uncertainty in Turkey. The Dow eked out a new closing high of 18,533.05, mere points above its previous Friday record, while the S&P 500 scored a new high of 2,166.89.

Housing starts in June climbed, the Commerce Department said on Tuesday, driven by a high level of demand and tight inventory. Starts for newly constructed homes rose 4.8% last month to an adjusted annual pace of 1.19 million. Economists had expected a pace of 1.17 million. May's numbers were revised down to 1.14 million from 1.16 million. Housing permits increased 1.5% to 1.15 million.

Netflix fell sharply in premarket trading after falling short of analysts' estimates for subscriber numbers, a closely watched metric. The streaming service added 1.7 million international subscribers in its recent quarter, below its own forecast of 2.5 million. Earnings came in above estimates, though. Netflix earned 9 cents a share, three times consensus. 

Yahoo! (YHOO) also reported a disappointing quarter. The Internet company reported its second-quarter loss widened to $440 million, while adjusted revenue, which excluded commissions paid for Web traffic, tumbled nearly 20%. Yahoo! made no mention of the possible sale of its core businesses, though Monday marked the final day for offers. 

In other earnings news, IBM (IBM - Get Report) climbed after beating expectations in its second quarter. The tech giant earned an adjusted $2.95 a share, 6 cents more than forecast, while revenue fell 2.8% to $20.24 billion. The company is still struggling with growth, reporting its 17th straight quarter of declining sales. 

Goldman Sachs (GS - Get Report) was slightly lower despite a better-than-expected second quarter. The financial institution earned $3.72 a share over the quarter compared to an expected $3.04. Revenue of $7.93 billion was 12% lower than a year earlier, though exceeded estimates of $7.48 billion.

VMware (VMW - Get Report) also reported a better-than-expected second quarter. The cloud-software developer earned an adjusted 97 cents a share, 2 cents higher than expected, while revenue of $1.69 billion exceeded estimates of $1.68 billion. 

Johnson & Johnson (JNJ - Get Report) rose in premarket trading after topping estimates in its second quarter and raising its full-year forecasts. The pharmaceutical giant earned an adjusted $1.74 a share, 6 cents above analysts' estimates, while revenue climbed nearly 4% to $18.48 billion. Its 2016 earnings guidance was increased to $6.63 to $6.73 a share from $6.53 to $6.68 billion. 

Aerospace and military manufacturer Lockheed Martin (LMT - Get Report) exceeded estimates on its top- and bottom-lines. The company earned $3.32 a share, well above expectations of $2.94 a share. Revenue of $12.9 billion beat by $300 million. 

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Unitedhealth (UNH - Get Report) shares were on watch after the health company raised the low-end of its previous earnings guidance for the full year thanks to a solid June quarter. The company increased its low-end earnings target by a nickel to $7.80 a share. Optum, its services unit, propelled earnings and revenue higher over its quarter, contributing around 44% to overall sales.