** Shares of discount chain Five Below Inc FIVE.O jump 12% to $84.59 premarket

** Retailer expects fiscal 2025 net sales between $4.21 bln and $4.33 bln, largely above analysts' estimate of $4.26 billion - data compiled by LSEG

** Projects midpoint of adj. operating margin to decline about 180 basis points year-over-year due to tariffs

** Co says forecast assumes roughly 100-basis-point impact to gross margin, particularly in H2 2025 from currently known tariffs, which includes 20% levy on China but does not include potential reciprocal tariffs

** Posts better-than-expected Q4 results, owing to stable demand from lower-income groups amid economic uncertainty

** Encouraged by progress in Q4, but we still have limited visibility, given several moving parts ... as well as full impact of tariffs that could flow into 2026, Telsey Advisory Group analyst Joseph Feldman says

** So far, stock down 28% as of last close

(Reporting by Savyata Mishra in Bengaluru)

((Savyata.Mishra@thomsonreuters.com))