Semtech Corporation (NASDAQ:SMTC) is a leading supplier of high-performance analog and mixed-signal semiconductors and advanced algorithms. The company serves a diverse range of industries, including communications, industrial, and consumer markets. In the competitive semiconductor industry, Semtech faces competition from companies like Silicon Laboratories Inc., Power Integrations, Inc., Lattice Semiconductor Corporation, and Diodes Incorporated.

Semtech's Return on Invested Capital (ROIC) is 6.65%, which is significantly lower than its Weighted Average Cost of Capital (WACC) of 13.45%. This indicates that Semtech is not generating returns that exceed its cost of capital, suggesting potential inefficiencies in how the company utilizes its capital. The ROIC to WACC ratio of 0.49 further highlights this inefficiency.

In comparison, Silicon Laboratories Inc. has a negative ROIC of -8.66% against a WACC of 11.10%, resulting in a ROIC to WACC ratio of -0.78. This negative ratio is concerning as it indicates that Silicon Laboratories is not generating positive returns on its invested capital, which could be a red flag for investors.

Power Integrations, Inc. has a positive ROIC of 2.80%, but it is still below its WACC of 10.22%. This results in a ROIC to WACC ratio of 0.27, suggesting that the returns are not sufficient to cover the cost of capital. Similarly, Lattice Semiconductor Corporation's ROIC of 5.16% is below its WACC of 11.92%, with a ROIC to WACC ratio of 0.43, indicating inefficiencies in generating returns above the cost of capital.

Diodes Incorporated also shows a low ROIC of 1.31% compared to its WACC of 11.32%, resulting in a ROIC to WACC ratio of 0.12. This significant gap in capital efficiency suggests that Diodes is not effectively utilizing its capital to generate returns.