** Dell's DELL.N shares jump 12.8% to $358.97 after the bell

** DELL now sees its annual revenue between $165 billion and $169 billion, a sharp increase from its previous forecast of $138 billion to $142 billion

** The AI server maker also lifts annual adjusted EPS forecast to $17.90 from the $12.90 ealier

** DELL posts an 88% jump in Q1 revenue to $43.84 billion, handily beating analysts' average estimate of $35.43 billion, according to data compiled by LSEG

** Quarterly adjusted EPS of $4.86 also top an estimate of $2.94

** DELL's stock has more than doubled so far this year