Here are a few options, depending on the desired level of formality:
Option 1 (Most direct and formal):
Abaxx Technologies Issues Statement Addressing Recent Market Speculation and Share Price Volatility
Option 2 (Concise and professional):
Abaxx Addresses Misleading Information and Recent Fluctuations in Share Price
Option 3 (Strong and definitive):
Abaxx Refutes Market Misinformation and Responds to Recent Trading Activity
Recommendation: Option 1 is the standard tone for corporate press releases and investor relations communications.