Stock futures inched higher on Tuesday as investors processed a rush of earnings ahead of the most anticipated report from Apple (AAPL) - Get Report after the closing bell. 

S&P 500 futures were up 0.12%, Dow Jones Industrial Average futures climbed 0.11%, and Nasdaq futures increased 0.2%. 

Apple, the world's largest company and the biggest weight on the S&P 500, will report after markets close on Tuesday. The recent launch of the iPhone 7 and Samsung's recent troubles with its Note 7 are expected to boost sales. However, the company is still expected to report its third straight quarter of declining revenue for the iPhone. 

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Investors had plenty of other earnings to process as they awaited Apple's earnings. Procter & Gamble (PG) - Get Report  moved more than 2% higher in premarket trading after topping earnings estimates in its fiscal first quarter. The consumer goods company earned an adjusted $1.03 a share, a nickel above forecasts. Sales of $16.52 billion exceeded estimates of $16.48 billion. Procter & Gamble maintained its full-year guidance of 2% sales growth. 

DuPont (DD) - Get Report reported a better-than-expected quarter and boosted its full-year profit estimates. The company expects adjusted earnings of $3.25 a share, up from its previous guidance range of $3.15 to $3.20 a share. The chemicals company more than doubled its adjusted earnings in its September-ended quarter, posting profit of 34 cents a share. Analysts expected 21 cents a share. 

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Visa (V) - Get Report  was on watch after reporting a jump in quarterly profit thanks to an increase in credit card spending over its recent quarter. The company earned an adjusted 78 cents a share in its fourth quarter, 5 cents higher than analysts expected. Growth was partly attributed to its purchase of Visa Europe. 

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Lockheed Martin (LMT) - Get Report was active after breezing past third-quarter estimates and forecasting full-year growth in the high single-digit range. The defense company earned an adjusted $3.61 a share over its recent quarter, up from $2.42 a share in the same period a year earlier and above analysts' estimates of $2.89. Lockheed martin anticipates a 7% increase in fiscal 2017 sales. 

Caterpillar (CAT) - Get Report fell more than 2% in premarket trading after forecasting little growth next year. The manufacturing equipment company said it expects full-year 2017 revenue "not significantly different" than its 2016 projections. The company anticipates 2016 revenue to come in at $39 billion, below consensus of $40.1 billion. Analysts had anticipated fiscal 2017 revenue to climb to $39.27 billion. 

Freeport-McMoRan (FCX) - Get Report rose more than 1% after swinging to a profit in its third quarter. The miner earned net income of $217 million, up from a loss of $3.8 billion a year earlier. However, adjusted earnings of 13 cents a share missed estimates of 20 cents. 

Under Armour (UA) - Get Report climbed 1% after lifting its share of the footwear market over the recent quarter. The workout apparel retailer reported a 28% increase in third-quarter profit, while revenue rose 22%. Earnings-per-share of 29 cents came in higher than estimates of 25 cents. 

Sprint (S) - Get Report fell more than 1% despite a better-than-expected quarter. The telecommunications company narrowed quarterly losses to $142 million, or 4 cents a share, from $585 million, or 15 cents, a year earlier. Sprint raised its full-year operating income target to between $1.2 billion and $1.7 billion, up from its previous range of $1 billion to $1.2 billion.