As the Q4 earnings season comes to a close, it’s time to take stock of this quarter’s best and worst performers in the aerospace industry, including Curtiss-Wright (NYSE:CW) and its peers.

Aerospace companies often possess technical expertise and have made significant capital investments to produce complex products. It is an industry where innovation is important, and lately, emissions and automation are in focus, so companies that boast advances in these areas can take market share. On the other hand, demand for aerospace products can ebb and flow with economic cycles and geopolitical tensions, which can be particularly painful for companies with high fixed costs.

The 14 aerospace stocks we track reported a mixed Q4. As a group, revenues along with next quarter’s revenue guidance were in line with analysts’ consensus estimates.

Amidst this news, share prices of the companies have had a rough stretch. On average, they are down 19% since the latest earnings results.

Curtiss-Wright (NYSE:CW)

Formed from a merger of 12 companies, Curtiss-Wright (NYSE:CW) provides a range of products and services to the aerospace, industrial, electronic, and maritime industries.

Curtiss-Wright reported revenues of $824.3 million, up 4.9% year on year. This print exceeded analysts’ expectations by 5.9%. Overall, it was a very strong quarter for the company with full-year EPS guidance exceeding analysts’ expectations.

"Curtiss-Wright concluded the year with a strong, fourth quarter financial performance that reflected better-than-expected sales growth, record quarterly Adjusted diluted EPS of $3.27, strong free cash flow and robust order activity," said Lynn M. Bamford, Chair and CEO of Curtiss-Wright Corporation.

The stock is down 20.5% since reporting and currently trades at $271.33.

We think Curtiss-Wright is a good business, but is it a buy today? Read our full report here, it’s free.

Best Q4: HEICO (NYSE:HEI)

Founded in 1957, HEICO (NYSE:HEI) manufactures and services aerospace and electronic components for commercial aviation, defense, space, and other industries.

HEICO reported revenues of $1.03 billion, up 14.9% year on year, outperforming analysts’ expectations by 5.4%. The business had an incredible quarter with a solid beat of analysts’ organic revenue estimates and an impressive beat of analysts’ EPS estimates.

The market seems content with the results as the stock is up 4% since reporting. It currently trades at $237.

Is now the time to buy HEICO? Access our full analysis of the earnings results here, it’s free .

Weakest Q4: Boeing (NYSE:BA)

One of the companies that forms a duopoly in the commercial aircraft market, Boeing (NYSE:BA) develops, manufactures, and services commercial airplanes, defense products, and space systems.