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NEW YORK ( TheStreet) -- Did the market turn from good to bad overnight? Are the data bad enough to warrant selling everything? "Not at all," Jim Cramer told his "Mad Money" TV show viewers Thursday. Cramer said that while there are indeed some things to worry about, there are also a lot of bullish macro themes that are still intact. While the traders may be focusing on whether Google ( GOOG) can hit $1,000 a share or whether Apple ( AAPL) will be releasing a wristwatch, Cramer said he remains focused on what's working -- things like housing, autos, lending, aerospace, energy and, of course, mergers. When it comes to housing, we're still not building enough homes, said Cramer, and while the traders only read the headlines of Toll Brothers ( TOL) earnings, deep inside the 53-page transcript of the company's conference call investors can learn that Toll Brothers is seeing strong demand and a 57% increase in its backlog. Autos are also selling, said Cramer, as new car builds continue to rise and used-car sales remain strong after Hurricane Sandy. As we learned from American Electric Power ( AEP) earlier this week, oil and gas continues to boom in the U.S. leading to cheap energy for utilities, manufacturers and chemical companies. In the banking world, we're seeing lending picking up for commercial real estate and the banks continue to fund a big round of mergers and acquisitions. Yes, there are concerns in the market, Cramer concluded, but not everything is bad, which is why investors need to be opportunistic and take profits in their winners and continue buying the themes that are working.