I have traded MRNA more than any other stock. Even if you lack the experience and know-how of trading, following some basics trends will give you a high winning percentage with this stock.
1) Finding the premarket high and shorting the stock close to that gives you about an 85% chance of a 50cent-$1 move before market opens.
2) A lot of the news on this stock is old and reused. Today for example there is news that seniors exhibit very few health issues with the stock. This is old news.
3) With every single run up including the first major one close to $100 a few months back, MRNA has flushed 100% of the time with no ability to maintain the premarket levels.