Also Wednesday, retail bookseller Barnes & Noble (BKS), fashion retailer Francesca's (FRAN - Get Report) and Pep Boys-Manny, Moe & Jack (PBY) release their latest earnings results before the opening bell.
Besides Palo Alto Networks, earnings after the close include online file-sharing company Box (BOX - Get Report), specialty tea boutique DavidsTea (DTEA - Get Report) and Ollie's Bargain Outlet (OLLI - Get Report).
As for Palo Alto Networks, in its fiscal 2015 fourth quarter analysts expect the company to post earnings of 25 cents a share on revenue of $256.25 million. Cramer said it's important that Palo Alto "blow in numbers and give very good earnings guidance," adding that the company is "the premiere cybersecurity stock."
On the economic calendar the MBA mortgage applications report is set to be released at 7 a.m. ET. This is an indicator for single-family home sales and housing construction. Additionally, the Redbook will come out at 8:55 a.m. ET, which measures comparable-store sales at chain stores, discounters and department stores. Finally, the job openings and labor turnover survey, or JOLTS, comes out at 10 a.m. ET. These results detail how the labor market is doing.