Contrary to popular belief, corrections can work both ways in the stock market, James Cramer told listeners on his

"RealMoney" radio show Friday.

Cramer noted how

Whole Foods Market

( WFMI) shot up in the aftermarket Thursday night after huge quarterly profits. Cramer called it a "correction" to the upside.

"The analysts were incorrect when they told you to sell the stock," said Cramer. "They were corrected when Whole Foods came up with big growth numbers."

Cramer expects all the analysts will be upgrading the stock in the near future, which should fuel another run.

"Some of them wrote speeding tickets for the stock because they didn't think it would grow in double digits," Cramer said. "They can't beat the market because they are the market."

For example, when Raymond James downgraded

Best Buy

(BBY) - Get Report

Friday, you should use that as a buy signal, said Cramer.

Watching Washington

With a highway bill on the way, Cramer is watching Washington for stock ideas. His top two picks are


(CAT) - Get Report



(TEX) - Get Report

, equipment makers that should benefit from the added spending on U.S. highways and byways.

Another caller congratulated Cramer on his successful

Smith & Wesson

( SWB) call from

the day before. The stock ran up after Cramer spoke about gun control legislation in Congress. And he reminded listeners to ring the registers if they made money on the stock.

Elsewhere, housing stocks are still OK in Cramer's opinion. A lot of the housing stocks were selling off Friday, which is fine with Cramer. He said investors may be able to pick them up cheaper next week if economic data causes interest rates to tick up.

Cramer referred a caller with a question on


( TUNE) to the latest research note by's

Stocks Under $10

editor, Will Gabrielski. Gabrielski says he is still positive on Microtune despite a selloff on margin worries.

When a caller asked Cramer for his thoughts on the radio frequency identification, or RFID, barcode technology, he recounted his visit to Long Island to meet with the management of

Symbol Technology

( SBL). Unfortunately, that meeting led to big losses because the management was overpromising and underdelivering. Cramer likes RFID stocks but won't get burned again by Symbol until there is a management change.


(SYMC) - Get Report

earnings were disappointing and Cramer won't recommend it. On the other hand, he said


(MFA) - Get Report

could go higher.

Image placeholder title

He was far more pleased with



quarterly report. Yet he still sold shares in

ActionAlertsPLUS to reduce a position that had grown too large.

Cramer said he does not like insurer

Tower Group


, which he called overvalued.

Lightning Round


Coldwater Creek




( ILSE),

XTO Energy

( XTO),

Harmon Industries




(EMMS) - Get Report




, Best Buy and

Advanced Medical Optics

(EYE) - Get Report



Ariad Pharmaceuticals



Westwood One

( WON) and




At the time of publication, Cramer was long Cabela's. Gabrielski held Microtune in his model portfolio.

James J. Cramer is a director and co-founder of He contributes daily market commentary for's sites and serves as an adviser to the company's CEO. Outside contributing columnists for and, including Cramer, may, from time to time, write about stocks in which they have a position. In such cases, appropriate disclosure is made. To see his personal portfolio and find out what trades Cramer will make before he makes them, sign up for

Action Alerts PLUS. While he cannot provide personalized investment advice or recommendations, he invites you to send comments on his column by

clicking here. Listen to Cramer's RealMoney Radio show on your computer; just click

here. Watch Cramer on "Mad Money" at 6 p.m. ET weeknights on CNBC. Click

here to order Cramer's latest book, "Real Money: Sane Investing in an Insane World," click

here to get his second book, "You Got Screwed!" and click

here to order Cramer's autobiography, "Confessions of a Street Addict."

William Gabrielski is a research associate at and is accredited with a Series 7 license. In keeping with TSC's editorial policy, he doesn't own or short individual stocks. He also doesn't invest in hedge funds or other private investment partnerships. Under no circumstances does the information in this column represent a recommendation to buy or sell stocks. Gabrielski welcomes your feedback;

click here

to send him an email.

Interested in more writings from William Gabrielski? Check out Stocks Under $10. For more information,

click here.