A once-obscure airline ETF has seen assets surge nearly 3,000% in 3 months, boosted by millennial day traders

· *The US Global Jets exchange-traded fund, ticker JETS, notched its 64th day of inflows Tuesday, bringing total assets to more than $1 billion, according to Bloomberg data.*
· *That's a surge of nearly 3,000% in just three months — in early March, the fund had only $33 million. *
· *The boost has been led largely by...