The closing price for Amazon (AMZN) on September 20 was $191.60. It was up 0.7% for the day. The latest price is $199.51.

The closing price for Amazon (AMZN) on September 20, 2023 was $135.29. It was down 2.4% for the day. The latest price is $199.51.

Arista Networks (ANET) had the highest return in 2017 by a US stock in the S&P 500 (GSPC), returning 141.5%.

The closing price for Amazon (AMZN) on September 20, 2022 was $122.19. It was down 0.9% for the day. The latest price is $199.51.

The closing price for Amazon (AMZN) on September 20, 2021 was $167.81. It was down 1.2% for the day. The latest price is $199.51.

Sorry, I couldn't find pricing data for that day. The closing price for Amazon (AMZN) on September 18, 2020 was $147.75. It was down 2.5% for the day. The latest price is $199.51.

The closing price for Amazon (AMZN) on September 20, 2019 was $89.71. It was down 1.5% for the day. The latest price is $199.51.

The closing price for Amazon (AMZN) on September 20, 2018 was $97.22. It was up 0.3% for the day. The latest price is $199.51.

The closing price for Amazon (AMZN) on September 20, 2017 was $48.66. It was up 0.1% for the day. The latest price is $199.51.

Enphase Energy (ENPH) had the highest return in 2019 by a US stock in the S&P 500 (GSPC), returning 464.4%.

The closing price for Amazon (AMZN) on September 20, 2016 was $39.01. It was up 0.5% for the day. The latest price is $199.51.

The price for Blackline (BL) today is $55.87. It is up 1% for the day.

Summit Therapeutics (SMMT) had the highest return between May 1, 2024 and August 31, 2024 by a large-cap US stock, returning 231.1%.

Tectonic Therapeutic (TECX) has had the highest return since January 1, 2024 by a US stock, returning 5,128,650%.

Summit Therapeutics (SMMT) had the highest return between April 1, 2024 and May 31, 2024 by a large-cap US stock, returning 106.3%.