On December 31, 2013, Tesla (TSLA) had a market capitalization of $18.5B, based on 1.84B shares at a price of $10.03.

On December 31, 2013, Apple (AAPL) had a market capitalization of $441.7B, based on 25.24B shares at a price of $17.50.

On Friday, Apple (AAPL) had a market capitalization of $2.9T, based on 15.33B shares at a price of $189.98.

The S&P 500 (GSPC) has returned 11.8% this year.

Summit Therapeutics (SMMT) has had the highest return this year by a large-cap US stock in the Nasdaq Composite (IXIC), returning 622.9%.

On Wednesday, Tesla (TSLA) had a market capitalization of $832.8B, based on 3.23B shares at a price of $257.55.

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On December 31, 2010, Tesla (TSLA) had a market capitalization of $2.5B, based on 1.43B shares at a price of $1.78.

Sorry, available market cap data for Tesla (TSLA) starts on June 29, 2010. Tesla (TSLA) has a market capitalization of $807.8B, based on 3.23B shares at a price of $249.82 (down 3.2% yesterday).

Sorry, available market cap data for Tesla (TSLA) starts on June 29, 2010. Tesla (TSLA) has a market capitalization of $807.8B, based on 3.23B shares at a price of $249.82 (down 3.2% yesterday).

BlackBerry (BB) returned -64.5% in 2008.

BlackBerry (BB) returned 163.2% in 2007.

BlackBerry (BB) returned 91.9% in 2006.

BlackBerry (BB) returned -20.7% in 2005.

BlackBerry (BB) returned 145.4% in 2004.