Company Progress: HYSR.US is a penny stock whose price heavily relies on its technological advancements and achieving milestones in its solar energy projects. Positive news regarding their technology's effectiveness can drive up stock price.

Market Sentiment: Overall investor confidence and market trends can influence HYSR.US. Bullish market conditions generally lead to increased investment in riskier assets like penny stocks.

Financial Status: HYSR.US's financial health, including cash flow, debt levels, and revenue generation, is a crucial factor. Any improvements could positively affect the stock price.

Industry Developments: Changes in the renewable energy sector, like government policies or technological breakthroughs by competitors, will have impacts on HYSR.US.

Share Dilution: The issuance of new shares can dilute existing shareholders' value and put downward pressure on the stock price.

News and Social Media: The circulation of news articles, social media discussions and online forums can greatly affect its trading volume and price, since it's a penny stock with high volatility.