Leon Technology's high P/S ratio may not be justified due to its declining revenue and industry growth expectations. Continuation of recent medium-term revenue trends could risk shareholders' investments, potentially leading to an excessive premium for potential investors.

The falling stock price aligns with the firm's lack of profit and declining yearly revenue. Its ability to return to growth and profitability is pivotal; without improvement, stock performance may remain weak. Investors should note these factors, along with other key longevity determinants like firm's health.