Sorry, I couldn't find pricing data for that day. The closing price for the S&P 500 (GSPC) on December 29, 2023 was $4,769.83. It was down 0.3% for the day. The latest price is $6,734.11.

Sorry, I couldn't find pricing data for that day. The closing price for the S&P 500 (GSPC) on December 30, 2022 was $3,839.50. It was up 0.3% for the day. The latest price is $5,961.83.

The closing price for the S&P 500 (GSPC) on December 31, 2021 was $4,766.20. It was down 0.2% for the day (down 0.3% from previous close). The latest price is $6,849.09.

The closing price for the S&P 500 (GSPC) on April 23, 2021 was $4,179.49. It was up 1% for the day. The latest price is $5,961.83.

The closing price for the S&P 500 (GSPC) on Thursday was $6,899.87. It was up 0.6% for the day (up 0.2% from previous close).

The closing price for the S&P 500 (GSPC) yesterday was $6,827.41. It was down 0.9% for the day (down 1.1% from previous close).

EchoStar (SATS) had the highest return in September 2019 by a mid-cap US stock, returning 44.4%.

Harmony Gold Mining (HMY) had the highest return in August 2019 by a mid-cap US stock, returning 53.9%.

Mastercard (MA) had the highest return between January 1, 2006 and June 30, 2007 by a US stock in the S&P 500 (GSPC), returning 313.4%.

Sorry, I don't have the answer to that one.

Sorry, I don't have the answer to that one.

Akamai Technologies (AKAM) had the highest return between July 1, 2005 and December 31, 2006 by a US stock in the S&P 500 (GSPC), returning 305.8%.

Sorry, I don't have the answer to that one.

Dell Technologies (DELL) had its best month in 2021 in April 2021, returning 11.4%.

SOXL returned 172.6% between 2023 and 2024.