The first half of March is already gone and the Vietnamese main indexes are up over the last 15 days. Although implied volatility is at relatively high level, it’s important to keep in mind that stock market volatility shouldn't concern too much long-term investors. HNX index is up 2.5% and HOSE index up 1.5%. Since the start of the year, both indexes are up with a +12.3% performance for HNX index and +15.7% for HOSE index.