Intel’s stock extends its spectacular run — and could see its best day in four decades

intel's stock surged again on tuesday, on track for its best single-day gain in 40 years. the rally has been spectacular, but wall street is split on whether the company's actual financial outlook has changed. the debate centers on whether this is a genuine turnaround or just a short-term bounce. intel has been struggling for years, losing market share and missing earnings targets. the stock's move this week is notable mostly for its size — a gain of this magnitude hasn't been seen since the 1980s.