<p class="ingestion featured-caption">Amazon CEO Andy JassyF. Carter Smith/Bloomberg via Getty Images; Chelsea Jia Feng/BI</p><ul class="summary-list"><li>Amazon will release its third-quarter earnings after the closing bell on Thursday.</li><li>Shares in the tech giant were up 27% year-to-date through Wednesday.</li></ul><p><a target="_blank" class href="https://markets.businessinsider.com/stocks/amzn-stock">Amazon</a> will report third-quarter earnings on Thursday after the closing bell.</p><p>Top of mind for investors will be the company's cloud platform and advertising strength. But there are still worries about slowing retail margins and Amazon's rising investments in other areas of its business.</p><p><a target="_blank" rel="noopener" class href="https://markets.businessinsider.com/stocks/amzn-stock"><u>Amazon's stock</u></a> was up 27% year-to-date through Wednesday's close, outpacing the the <a target="_blank" rel="noopener" href="https://markets.businessinsider.com/index/s&p_500"><u>S&P 500</u></a>'s 22% gain.</p>