Should investors buy Apple (AAPL) - Get Report at current levels, with the company scheduled to report earnings on Tuesday after the close?

Speaking from the floor of the New York Stock Exchange Monday, TheStreet's Jim Cramer, co-manager of the Action Alerts PLUS portfolio, reiterated that when it comes to Apple own the stock, don't trade it.

Investors should focus on the earnings reports from Sprint (S) - Get Report and T-Mobile (TMUS) - Get Report  to get a read on where Apple will go. These companies are tied more to Apple because of their younger customers, who just love the iPhone. These telecom companies are doing quite well at the moment, he said.

Analysts seem hesitant to be negative on Apple for fear of the potential backlash if business is strong, Cramer said.

Samsung (SSNLF) is still on the ropes from its battery issues while Apple remains the most integrated device in many consumers' lives. It's the one item they would least likely want taken away from them, and that bodes well for Apple, Cramer concluded.

Analysts expect the company to earn $1.65 a share on $46.89 billion in revenue.

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At the time of publication, Cramer's Action Alerts PLUS had a position in AAPL.