Is NanoVibronix, Inc. overvalued or undervalued?

As of 15 November 2021, the valuation grade for NanoVibronix, Inc. moved from does not qualify to risky, indicating a significant deterioration in its financial standing. The company is currently overvalued, reflected by a Price to Book Value of 0.07, an EV to EBIT of -1.16, and an EV to Sales ratio of 2.11. Compared to peers, SINTX Technologies, Inc. has a more negative EV to EBITDA of -1.2121, while Dynatronics Corp. shows a less severe EV to EBITDA of -3.1145, highlighting the relative weakness of NanoVibronix in its industry.
The stock has performed poorly over multiple periods, with a year-to-date return of -89.66% compared to the S&P 500's positive return of 12.22%, and a staggering decline of -99.49% over the past five years, while the S&P 500 gained 96.61%. This stark contrast in performance further reinforces the notion that NanoVibronix is overvalued given its financial metrics and market performance.