Apple shares ended the day up more than 6 percent, while Twitter shares fell further and ended the day down more than 14 percent.
Apple posted earnings and revenue that topped analysts' expectations on Tuesday, as a bet on the iPhone SE paid off. Meanwhile, Twitter reported mixed results and disappointing sales guidance, although its user base grew more than anticipated.
Apple reported earnings of $1.42 per share on revenues of $42.4 billion, above the $1.38 per share on sales of $42.09 billion expected by a Thomson Reuters consensus estimate. The figure was down against the comparable year-ago number of $1.85 per share on $49.61 billion in revenue.
The company shipped 40.4 million iPhones in the third fiscal quarter, above the 40.02 million expected by StreetAccount estimates.
"At its launch, we said the addition of the iPhone SE to the iPhone lineup placed us in a better position to meet the needs of customers who love a 4-inch phone, and to attract even more customers to our ecosystem," CEO Tim Cook said in a conference call with investors. "In both cases, that strategy is working."