The closing price for Anixa Biosciences (ANIX) in April 2011 was $5.69, on April 29, 2011. It was up 26.4% for the month. The latest price is $3.08.

Anixa Biosciences (ANIX) had the highest return between May 1, 2011 and May 31, 2011 by a US stock with a market cap of $100M+, returning 77.8%.

Sorry, available market cap data for Best Buy (BBY) starts on January 2, 2009. Best Buy (BBY) has a market capitalization of $19.9B, based on 214.72M shares at a price of $92.66 (up 1% on Friday).

The closing price for Amarin (AMRN) in April 2011 was $16, on April 29, 2011. It was up 117.4% for the month. The latest price is $0.50.

The closing price for Ammo (POWW) in April 2011 was $2.25, on April 27, 2011. It was up 150% for the month. The latest price is $1.21.

Cisco Systems (CSCO) had the highest return between February 10, 1991 and December 15, 1999 by a US stock with a market cap of $10B+, returning 23,866%.

The closing price for Paysign (PAYS) in April 2011 was $0.22, on April 29, 2011. It was up 120% for the month. The latest price is $3.38.

Oracle (ORCL) had the highest return between February 10, 1991 and December 15, 1999 by a mega-cap US stock, returning 9,167.2%.

Ammo (POWW) had the highest return between April 1, 2011 and April 30, 2011 by a US stock with a market cap of $100M+, returning 150%.

Nextplat (NXPL) had the highest return between April 1, 2011 and April 30, 2011 by a US stock, returning 238.5%.

Tectonic Therapeutic (TECX) has had the highest return this year by a US stock, returning 5,056,150%.

The closing price for Digital Turbine (APPS) in March 2011 was $2.90, on March 31, 2011. It was up 241.2% for the month. The latest price is $1.31.

American Airlines (AAL) went public on September 27, 2005, when it opened at a split-adjusted price of $19.84.

The closing price for XTI Aerospace (XTIA) in March 2011 was $0.04, on March 31, 2011. It was up 339.6% for the month. The latest price is $0.05.

The closing price for Worksport (WKSP) in March 2011 was $90, on March 31, 2011. It was up 400% for the month. The latest price is $0.67.