** Shares of United Parcel Service UPS.N down 12.8% at $116.60 premarket

** Co forecast 2025 revenue below expectations, as parcel delivery co works to lower exposure to its largest customer, Amazon AMZN.O, and as other customers opt for cheaper, slower ground-based deliveries

** Expects 2025 rev. of $89 bln, below analysts' estimates of $94.88 bln, according to data compiled by LSEG

** Q4 rev. of $25.30 bln, also below analysts' estimates of $25.42 bln

** Co, however, reports Q4 adj. EPS of $2.75, above estimates of $2.53

** Stock had fallen ~20% in 2024

(Reporting by Rupali Chaudhary in Bengaluru)

((Rupali.Chaudhary@thomsonreuters.com))