From a review of the very fine Google Finance Website, the Market Watch Big Charts Website, the GRT Historical Stock Price Web Site and of company financial statements in the US SEC Website, I found the 12 Companies headquartered in Nebraska with Stock Market Capitalizations of more than $100 Mil at the end of 2016 and which also had their common stock trading at the beginning of President Obama's first term through very recently in 2017 in Donald Trump's first term.
Below here are the stock market prices of each of these 12 Nebraska Companies on April 19, 2017 (the most recent stock trading date), on January 18, 2017 (the last stock trading date before Donald Trump took office), on March 6, 2009 (very early in President Obama's first term), and on January 16, 2009 (the last stock trading day before Barack Obama took office in his first term), along with the related Equal-Company-Weighted Stock Market Price Percentage Changes:
|Green Plains Inc||Omaha||NE||23.20||23.70||1.32||2.50||-2%||1695%||848%|
|National Research Corp||Lincoln||NE||41.50||40.55||6.17||7.00||2%||558%||479%|
|America First Multifamily Investors LP||Omaha||NE||5.70||5.50||5.03||5.45||4%||9%||1%|
|Average % Change all 12 Nebraska Cos||-2.1%||456%||310%|