The Dow Jones Industrial Average is a collection of 30 large and widely held U.S.-based companies that acts as a bellwether for the overall stock market. While the index has lost 5.4% in the month of November, its bottom 10 companies have seen their stock prices fall even farther.

Of course, a stock's price can drop for reasons both significant (the emergence of a more powerful competitor) and insignificant (tax selling). A large drop in stock price could offer a unique buying opportunity, but it could also present a value trap.

That's why we've paired the 10 biggest Dow losers for the month of November with the intelligence of our 120,000-member-strong Motley Fool CAPS community. Each company's CAPS rating should offer some insight into how our community views the company. As always, though, you should conduct your own fundamental research.

For the month of November, here are the Dow's 10 biggest market losers:

Company

Return in November

Year-to-Date Return

CAPS Rating (out of 5)

Additional CAPS Research

1. Citigroup (NYSE:C)

(39.3%)

(71.8%)

**

C

2. Bank of America (NYSE:BAC)

(32.8%)

(60.6%)

***

BAC

3. JPMorgan Chase (NYSE:JPM)

(23.2%)

(27.5%)

**

JPM

4. EI DuPont de Nemours

(21.8%)

(43.2%)

*****

DD

5. Boeing (NYSE:BA)

(18.7%)

(51.3%)

****

BA

6. American Express

(15.2%)

(55.2%)

***

AXP

7. Intel (NYSE:INTC)

(13.9%)

(48.2%)

****

INTC

8. Merck

(13.7%)

(54%)

****

MRK

9. Walt Disney (NYSE:DIS)

(13.1%)

(30.2%)

****

DIS

10. International Business Machines (NYSE:IBM)

(12.2%)

(24.5%)

****

IBM

Source: Capital IQ and Motley Fool CAPS.

Join us on CAPS to further your research into these companies.

JPMorgan Chase and Bank of America are Income Investor recommendations. Intel and American Express are Inside Value picks. Walt Disney is a Motley Fool Stock Advisor recommendation. The Fool owns shares of American Express and Intel, as well as covered calls on Intel. The Fool's disclosure policy is not a loser at all.