Bristol-Myers Squibb (BMY) had the highest return in 1983 by a US stock, returning 431.3%.

The closing price for International Business Machines (IBM) in 1990 was $11.91, on December 31, 1990. It was up 24.9% for the year. The latest price is $214.67.

SPY had its best month in 1996 in November 1996, returning 7.1%.

SPY had its best month in 2000 in March 2000, returning 9.5%.

SPY had its best month in 2004 in November 2004, returning 4.1%.

SPY had its best month in 2008 in December 2008, returning 4%.

SPY had its best month in 2012 in June 2012, returning 5.7%.

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SPY had its best month in 2016 in March 2016, returning 5.9%.

First Solar (FSLR) had the highest return in 2007 by a US stock in the S&P 500 (GSPC), returning 785.4%.

Natwest (NWG) had the highest return in 2007 by a US stock, returning 15,921,800%.

Bristol-Myers Squibb (BMY) had the highest return in 1981 by a US stock, returning 1,735.1%.

The closing price for Bitcoin (BTC) on December 20, 2020 was $23,487.87. It was down 1.6% for the day. The latest price is $67,054.75.

Frequency Electronics (FEIM) had the highest return in 1980 by a US stock, returning 684.3%.

The closing price for Bitcoin (BTC) on August 6, 2020 was $11,779.77. It was up 0.3% for the day. The latest price is $67,138.