Tech heavyweight Apple (AAPL) and credit giant Visa (V) may potentially announce a partnership in the mobile payment arena as early as this fall, Pacific Crest Securities said in a report, a move that would negatively impact eBay's (EBAY) online payment system PayPal. Visa recently debuted online payment solution Visa Checkout. The new iPhone 6 is expected to have near-field communications and secure element tech as features, said Pac Crest. Apple shares fell 0.6% to 95.59. Visa fell 0.2% to 212.16. Ebay fell 1% to 53.06.