Traders who rushed to buy Virgin Galactic in its February boom are moving into stocks that could benefit from the coronavirus.

The high-growth space travel stock — the most traded name on SoFi Invest last week — is losing its appeal for millennial traders on the platform. Virgin Galactic saw net selling this week thanks to "people taking gains," according to SoFi. Virgin Galactic shares have dropped more than 33% in the past week.

Instead, the start-up said its majority millennial traders are buying "plague stocks," or names that benefit from the worsening coronavirus outbreak.

Drug-developer Moderna saw 100 times its usual buying activity on the SoFi trading platform. For Lakeland Industries, a protective clothing provider, it was more than 10 times its usual purchase history. Vir Biotech experienced 50 times normal levels, while Co-Diagnostics — which soared 57% on hope of a coronavirus test — had 20 times its normal activity.

U.S. stocks tumbled this week as fears of the virus and its possible economic impact weighed on investor sentiment. World Health Organization officials said Friday they are increasing the risk assessment of the coronavirus to "very high" across the world. The disease has spread to at least 49 countries in a matter of weeks.

Wall Street's so-called fear gauge, the Cboe Volatility Index, hit its highest level since February 2018. The TVIX exchange-traded note was also one of the top trades on SoFi this week.

On the passive, "robo" investing side, SoFi said customers shifted from "aggressive" to "moderately aggressive" with people proactively changing their strategies more than usual. SoFi has about 200,000 traders on its platform with an average age of 25 to 40 years old.