Editor's Note: Any reference to TheStreet Ratings and its underlying recommendation does not reflect the opinion of TheStreet, Inc. or any of its contributors including Jim Cramer or Stephanie Link.

Monday, Monday, December 08, 2014, 28 U.S. common stocks are scheduled to go ex-dividend. The dividend yields on these stocks range from 0.9% to 10.4%. All of these stocks can be found on our stocks going ex-dividend section of our dividend calendar.

Highlighted Stocks Going Ex-Dividend Monday:

Calamos Global Dynamic Income Fund

Owners of Calamos Global Dynamic Income Fund (NASDAQ: CHW) shares, as of market close today, will be eligible for a dividend of 7 cents per share. At a price of $8.97 as of 4:00 p.m. ET, the dividend yield is 9.3%.

The average volume for Calamos Global Dynamic Income Fund has been 161,200 shares per day over the past 30 days. Calamos Global Dynamic Income Fund has a market cap of $533.4 million and is part of the financial services industry. Shares are up 0.5% year-to-date as of the close of trading on Wednesday.

STOCKS TO BUY: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12 months. Learn more.

Mentor Graphics

Owners of Mentor Graphics (NASDAQ: MENT) shares, as of market close today, will be eligible for a dividend of 5 cents per share. At a price of $22.12 as of 4:00 p.m. ET, the dividend yield is 0.9%.

The average volume for Mentor Graphics has been 550,400 shares per day over the past 30 days. Mentor Graphics has a market cap of $2.5 billion and is part of the computer software & services industry. Shares are down 8% year-to-date as of the close of trading on Wednesday.

STOCKS TO BUY: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12 months. Learn more.

Mentor Graphics Corporation provides electronic design automation software and hardware solutions to automate the design, analysis, and testing of electro-mechanical systems, electronic hardware, and embedded systems software. The company has a P/E ratio of 18.56.

TheStreet Ratings rates Mentor Graphics as a buy. The company's strengths can be seen in multiple areas, such as its revenue growth, largely solid financial position with reasonable debt levels by most measures, reasonable valuation levels, expanding profit margins and notable return on equity. We feel these strengths outweigh the fact that the company has had sub par growth in net income. You can view the full Mentor Graphics Ratings Report now.

Patterson-UTI Energy

Owners of Patterson-UTI Energy (NASDAQ: PTEN) shares, as of market close today, will be eligible for a dividend of 10 cents per share. At a price of $16.88 as of 4:00 p.m. ET, the dividend yield is 2.3%.

The average volume for Patterson-UTI Energy has been 4.9 million shares per day over the past 30 days. Patterson-UTI Energy has a market cap of $2.6 billion and is part of the energy industry. Shares are down 30.7% year-to-date as of the close of trading on Wednesday.

STOCKS TO BUY: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12 months. Learn more.

Patterson-UTI Energy, Inc., through its subsidiaries, provides onshore contract drilling services to major and independent oil and natural gas operators in the United States and Canada. The company operates through three segments: Contract Drilling, Pressure Pumping, and Oil and Natural Gas. The company has a P/E ratio of 21.01.

TheStreet Ratings rates Patterson-UTI Energy as a hold. The company's strengths can be seen in multiple areas, such as its revenue growth and largely solid financial position with reasonable debt levels by most measures. However, as a counter to these strengths, we also find weaknesses including deteriorating net income, disappointing return on equity and poor profit margins. You can view the full Patterson-UTI Energy Ratings Report now.

More About Dividends:

One benefit of owning a stock is the potential that you will be paid a dividend. The distribution of dividend payments is another way for a company to share its profit with you. A dividend means that the company pays you a certain amount of money, either as a one-time payment or more commonly on a quarterly basis, for each share of stock you own.

Many times, dividends come at the expense of greater price appreciation, because the company is distributing its profits to shareholders rather than reinvesting the profits back into the growth of the company. However, companies that pay dividends can be very attractive to investors when they offer a steady stream of income. There are some important terms and dates an investor should be familiar with before purchasing any dividend-paying companies. Let's work through an example to help better explain some of these terms:

On March 1, ABC Widget Company has decided that because it holds excess cash and lacks investment opportunities, it would like to reward shareholders with a regular quarterly dividend payment. The date for this particular announcement is known as the declaration date. It is on this date that the company announces the specific dividend payment along with the holder-of-record date (aka record date) and the payment date. The company announces that a dividend payment of 25 cents per share will be payable March 31, 2012 (the payment date) to all shareholders of record at the close of business on March 16, 2012 (holder-of-record date). What does this all mean? Well the short story is that the company looks at its records on March 16 and anyone listed on the books as an owner of ABC Widget company will be eligible for the dividend payment (on March 31).

The one other important term to remember is the ex-dividend date. The ex-dividend date (typically two trading days before the holder-of-record date for U.S. securities) is the day in which a company begins trading without the dividend. In order to have a claim on a dividend, shares must be purchased no later than the last business day before the ex-dividend date. A company trading ex-dividend will have the upcoming dividend subtracted from the share price at the start of the trading day. Many times, the price of a stock will increase in anticipation of the upcoming dividend as the ex-dividend date approaches, yet will fall back by the amount of the dividend on the ex-dividend date.

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