NEW YORK ( TheStreet) -- Zynga ( ZNGA) was again a big loser in premarket trading as Wall Street responded to the company's recent preliminary third-quarter earnings and lowered outlook. The results, released after market close on Thursday, prompted Sterne Agee to lower its estimates for the social gamer on Friday. Stifel Nicolaus also cut its Zynga estimates and Evercore Partners lowered its Zynga target to $1.70 from $2. Zynga shares, which lost 12% during last week's trading, were down 2.82% to $2.41 before market open. Facebook ( FB), which is a key partner of Zynga, slipped 2.68% to $20.35. Shares of HP ( HPQ), which outlined its massive turnaround plan last week, were down 0.75% to $14.62 on Monday. Apple ( AAPL) shares also dipped in premarket trading, despite ongoing rumors about a possible launch of a new iPad Mini. The tech giant's shares were off 0.63% at $648.46 before market open. --Written by James Rogers in New York. Follow @jamesjrogers >To submit a news tip, send an email to: email@example.com.