Stocks rebounded Friday, but closed out the week in negative territory as market participants remain concerned that the Federal Reserve will start tapering fiscal stimulus this year.

All three major market averages ended the week lower, with the Dow underperforming with a 1.1% drop, while the Nasdaq fell 0.7% lower and the S&P 500 slipped by nearly 0.6%.

Here's how the market settled to close out the week:

S&P 500 Index (SPY  ): +0.81% or +35.87 points to 4,441.67

Dow Jones Industrial Average (DIA  ): +0.65% or +225.96 points to 35,120.08

Nasdaq Composite Index (QQQ  ): +1.19% or +172.88 points to 14,714.66

Amazon launches website to communicate with sellers about Congress's antitrust bills:

Amazon (AMZN  ) on Friday launched a website to communication with sellars about antitrust proposals raised by Congressional lawmakers.

The website allows sellers to sign up to receive more information from Amazon's public policy team about the antitrust legislation approved by the House Judiciary Committee back in June. By signing up, sellers will will also be able to communicate directly with elected officials about the bills, according to the website.

"We look forward to keeping you informed as we get more information about what this legislation could mean for you and providing you the opportunity to have your voice heard," according to the website. "We will also share ways we can work together to ensure Amazon remains a great place for our seller community."

Bank of America predicts post-Delta variant market surge:

Bank of America (BAC  ) analyst Ethan Harris projected Friday that economic disruptions caused by the Delta variant will likely be short, and will potentially cause another reopening-related surge in market activity once its economic threats subside, Yahoo Finance reports.

"The U.S. slowdown is due to both the surge in COVID cases and severe supply-side constraints," Harris, global economist for Bank of America Research, said in a note, quoted by Yahoo Finance. "China's slowdown is mainly due to policy tightening, combined with a slow response to the weaker data. In both instances we expect a return to solid growth starting in 4Q."

"While we believe there will be some permanent growth destruction from Delta, it is more a change in the timing of growth, in our view," Harris added, Yahoo Finance reports. "Once the Delta threat is reduced and this COVID wave subsides, we should see the return of pent-up spending for leisure services. Some categories will have a bigger bounce than others--perhaps travel more than restaurants/bars, for example--but we should see people re-engage in these activities."