The broader markets may have given up most of their gains Wednesday, but Cintas Corporation (CTAS) - Get Report remains solidly in the green. Shares are up 5.6% to $143.76 Wednesday, thanks to the company's earnings per share and revenue beat for its fiscal first quarter of 2018.

Sales grew nearly 25% year-over-year, while operating income increased more than 22%. The jump in share price puts Cintas at a new 52-week high and it's now up 24.5% for 2017. Cintas is a stock that TheStreet's Jim Cramer has liked for a while now, calling it an excellent play on small- and medium-sized businesses. "Small business is the backbone of the creation of jobs" in the U.S., he added.

"They made a great acquisition," he said, referring to Cintas' $2.2 billion takeover of G&K Services. While operating income was weighed down from the acquisition thanks to integration expenses, management credited the new asset as a large driver of its revenue growth this quarter.

While Cintas is hitting fresh all-time highs on the day, don't look for it to end right here. "It's going to keep climbing, it's not done," said Cramer, who also manages the Action Alerts PLUS charitable trust portfolio.

CTAS is up nearly 27% over the past 12 months and up a whopping 254% over the past five years.

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At the time of publication, Cramer's Action Alerts PLUS had no position in any companies mentioned.