Amazon's fourth annual Prime Day kicked off Monday to much fanfare, but it didn't quite go off without a hitch.
Some users [reported](https://twitter.com/CNET/status/1018934859505385472) getting error messages, while others got stuck in a loop that kept redirecting them back to the main sale site.
The issues came in the opening minutes of what the e-commerce giant has touted as a shopping holiday bigger than Black Friday or Cyber Monday. Research firm eMarketer estimated the company could bring in revenues of as much as $3.4 billion during the event, eclipsing the estimated $2.4 billion spent last year.
Whether the glitches affect results will be closely watched by analysts and investors ー shares of Amazon, which hit all-time highs early in the day Monday, pared gains after news of the problems.
Prime Day began at 3 pm ET on Monday and lasts 36 hours. This year's event is six hours longer than last year's.
Calls are growing for an investigation into Prime energy drink, the product backed by YouTube stars Logan Paul and KSI, over its high caffeine content.
Stocks rose at the opening bell as the market awaits updates on inflation data while earnings kick off this week for the second quarter. The Federal Reserve is also slated to meet later this month as investors anxiously await its decision on rates.
The Week's Top Stories is a guided tour through the biggest market stories of the week, from winning stocks to brutal dips to the facts and forecasts generating buzz on Wall Street.
The railroad industry has sued to block a new minimum crew-size requirement that Ohio imposed after a fiery train derailment in East Palestine in February.
