Is PAR Technology Corp. overvalued or undervalued?

As of 15 March 2018, PAR Technology Corp. moved from a fair to a risky valuation grade. The company appears to be overvalued based on its financial metrics, particularly given its negative earnings and returns. Key ratios include a Price to Book Value of 3.26, an EV to Sales ratio of 8.03, and a ROE of -8.83%. In comparison, Nextracker, Inc. has a fair valuation with a P/E of 18.75, while Nova Ltd. is considered attractive with a P/E of 34.30.
The stock has underperformed relative to the S&P 500, with a year-to-date return of -41.24% compared to the index's 12.22%. This trend reinforces the notion that PAR Technology Corp. is not only struggling financially but also failing to deliver value to its shareholders in the current market environment.