Zynga, the US online social gaming company, has filed for a follow-on offering just 90 days after its initial public offering, the shortest time between the two since the onset of the financial crisis. The move came as the technology dominated Nasdaq index closed above 3,000 for the first time in 12 years.

Zynga priced its IPO on Nasdaq on December 15 last year raising $1bn through Morgan Stanley, Goldman Sachs, Bank of America Merrill Lynch, Barclays Capital and JP Morgan.