It's a trader's market and that means anyone investing these days needs to be quick on the draw in terms of getting in and getting out.

This isn't a game for the faint of heart, but for those with enough intestinal fortitude, there's money to be made. This new feature on TheStreet.com will show you the money by reviewing the previous days top 10 intraday plays (excluding pink sheets).

So without further ado, here are the winning plays for March 17, 2009:

Berkshire Hathaway class A ( BRK/A)

Intraday High: $82,450

Opening Price: $80,300

Potential Win: $2,150

Berkshire Hathaway class B ( BRK/B)

Intraday High: $2,705

Opening Price: $2,615

Potential Win: $90

CME Group ( CME)

Intraday High: $224.36

Opening Price: $192.20

Potential Win: $32.16

Wesco Financial ( WSC)

Intraday High: $267.00

Opening Price: $248.00

Potential Win: $19.00

NVR ( NVY)

Intraday High: $391.48

Opening Price: $375.00

Potential Win: $16.48

Google ( GOOG)

Intraday High: $335.34

Opening Price: $320.18

Potential Win: $15.16

White Mountains ( WTM)

Intraday High: $176.72

Opening Price: $163.02

Potential Win: $13.70

Alleghany ( Y)

Intraday High: $285.00

Opening Price: $272.10

Potential Win: $12.90

National Western Life Insurance ( NWLI)

Intraday High: $106.70

Opening Price: $96.29

Potential Win: $10.41

Mastercard ( MA)

Intraday High: $162.47

Opening Price: $153.39

Potential Win: $9.08

Hall is the editor of TheStreet.com. Previously, he served as deputy editor and chief innovation officer at The Orange County Register and as a news manager at Bloomberg News in Frankfurt, Amsterdam and Washington, D.C. As a reporter, he covered business and financial markets, worked in both print and television in the U.S. and Europe, and conducted in-depth investigative coverage at The Journal-Gazette in Fort Wayne, Ind. His work also has been published in a variety of newspapers including The Wall Street Journal, The New York Times and International Herald Tribune. Hall received a bachelor�s degree in journalism and political science from The Ohio State University and has taken graduate management science courses at Boston University.

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