GameStop saga: The stock market lost its mind this week. Who's to blame? 28 Jan, 2021 05:03 AM 6 minutes to read A struggling retail business has become the centre of a Wall Street storm. Photo / Getty Images. A struggling retail business has become the centre of a Wall Street storm. Photo / Getty Images. Billions of dollars were this week wiped off of the ledgers of the sophisticated fund managers who have long pulled the strings on Wall Street. In the process, a struggling retail firm became a US$10 billion (NZ$14b) company and a band of retail investors became millionaires. So who's to blame for the meteoric rise of GameStop from less than US$20 a share at the beginning of the year to $347 a share this week?