Did a little search and I think the chart reflects the problems NYSE had at the start today with bad trades which ended up busted and led to many charts having bad prints, The Carnival chart did the same thing.
That was earnings fallout correct? It opened $3+ above previous close and then traded $3 below the previous close only to close today almost even with the previous close,.09 below
heads-up Alert: do not trust today's count at any source for # of new 52-week price highs or 52-week lows ... the morning glitch at the NYSE which created a Halt for many stock symbols has resulted in busted trades and the temporarily high prints or low prints are going to be with us forever on charts and data services, even though the trades went to busted
the Wall Street Journal on-line subscription may be providing a more accurate identification of which symbols are actually printing real new highs and new lows today ... based on my quick survey so far