Boeing (BA) - Get Report has had one hot stock this year, and it shows.

The airplane maker, along with CSX (CSX) - Get Report and Roper are trading at the steepest premiums to their own valuation history right now, according to Bloomberg data. 

The ascent in Boeing comes as Wall Street is expecting some great things from economically-sensitive industrial companies this earnings season.

Perhaps a little too much based on sluggish global growth during the second quarter. Industrials are the most expensive cyclical sector within the S&P 500 based on forward EBITDA (earnings before interest, taxes, depreciation and amortization) multiples, according to Bloomberg data. The space's 10.9 times multiple is noticeably above the five-year average of 9.1 times and long-term average of 8.4 times. Adjusted for standard deviation, the industrials complex trades at the second biggest valuation premium to its five-year average than any other index sector behind tech, Bloomberg data shows.

Of the 67 companies in the S&P 500 industrials sector, only 15 screen as discounted on a forward EBITDA basis, Bloomberg data shows.

Boeing gets extra accolades.

While the Dow Jones Industrial Average average has gained about 3.1% since its May 16 close, Boeing shares have soared 14%. Year to date, the Dow has risen 9.49% while shares in Boeing, the No. 1 performer on the Dow, have jumped 34%.

Ted Reed contributed to this story.

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