Shares of Citigroup gained 6.2% after Cramer said the stock the stock was a buy. Cramer sees no reason why Citi’s stock can’t reach $4 per share. Cramer has been bearish on Citigroup in the past and even now seems to struggle with his newfound bullish stance. 

Cramer again recommended Smith Micro Software (SMSI: 8.26 +4.42%) sending the stock up 2.8% on Thursday. Cramer really like the mobile internet sector and likes SMSI even though its trading nears its 52-week high. “I am a buyer on any weakness”, said Cramer. 

Other Cramer stock picks: 

First Energy (FE: 37.78 +0.85%) gained 1.4% – “First Energy is a well-run company with a good yield.”

Tellabs (TLAB: 7.47 -0.27%) jumped 1.6% – Cramer says to buy, buy, buy TLAB under $6 a share.

On Tuesday’s Mad Money show, Jim Cramer labeled First Niagara Financial Group (FNFG: 11.7975 +3.58%) as the next big “super regional” bank. He is excited about the company’s acquisition of Harleysville National and its expansion in Pennsylvania and New York.   The markets responded positively to the bullish comments, sending First Niagra’s stock up 4.3%.

In the Lightning Round segment of Tuesday’s Mad Money show, Mr. Cramer recommended Smith Micro Software (SMSI: 8.26 +4.42%). Cramer likes the company as it operates within the mobile internet family. He recommended investors keep buying the stock. Evidently it was good advice, as the stock gained 6.4%. 

Mosaic (MOS: 58.10 -0.43%) also was impacted by the “Cramer effect”, as the stock lost 3.2% in Wednesday’s trading session after bearish comments from Mr. Cramer. Cramer advised investors against investing in Mosaic. “Don’t go with Mosaic, which happens to be, I think, Mel Gibson’s favorite fertilizer play.” 

Meanwhile, United Health (UNH: 33.91 +3.20%), Wellpoint (WLP: 53.25 +2.76%) and Aetna (AET: 28.76 +1.23%) all dropped despite Jim Cramer declaring President Obama’s healthcare bill “dead on arrival”. Cramer expects an upturn in the healthcare sector, but may have been a bit premature in his recommendation as all three stocks dropped big in Wednesday’s trading session. 

Other Cramer stock picks: 

Cypress Semiconductors (CY: 11.53 +0.17%) gained 3.2% – Cramer likes the mobile internet sector.

RF Microdevices (RFMD: 5.43 +3.63%) rose 2.4% – Part of Cramer’s recommendation of the mobile internet space.