GameStop Stock 145% to $159.18

day traders were shouting it from the rooftops: Buy GameStop!

surged as much as 145% to $159.18 Monday morning

Friday’s close only to bounce back up again to close Monday at $76.79, up 18%

which extended GameStop’s gains for the year to more than 300%

volatility prompted the New York Stock Exchange to briefly halt trading nine times

175.5 million shares changed hands Monday

the second-largest one-day total on record, according to Dow Jones Market Data