MannKind Tumbles on Diabetes Drug Delay and Other #Stocks2Watch

#Stocks2Watch: FOX Business rounds up the stocks you should watch before the opening bell rings on Wall Street. Tweet @adamsamson or e-mail adam.samson@foxbusiness.com and tell us what stocks you're watching -- your picks could appear online!

1. MannKind (NASDAQ:MNKD)

MannKind (NASDAQ:MNKD) shares are tumbling more than 10% after the U.S. Food & Drug Administration delayed a review of the company's inhaled insulin drug. The stock skyrocketed earlier in the month after an FDA panel gave the treatment a green light.

2. Procter & Gamble (NYSE:PG)

FOX Business Assignment Editor Jessica MacKenzie said she's keeping an eye on shares of consumer products giant Procter & Gamble (NYSE:PG). She writes:

P&G lifted its dividend by 7%, which brings the payout to about 64 cents a share.  At the same time, the Wall Street Journal reports fund managers are gravitating more toward dividend-paying stocks than growth stocks.  The Journal says the change denotes increasing concern that earnings are slowing and the economic recovery remains tepid.

3. PowerShares QQQ Trust, Series 1 (NASDAQ:QQQ)

The Nasdaq has come under intense pressure in recent sessions, and Nasdaq 100 futures indicate it could be in for yet another fall. One way traders play the volatility is through a popular ETF called the PowerShares QQQ Trust, Series 1 (NASDAQ:QQQ). It's frequently referred to as simply the triple-qs.

4. Zynga (NASDAQ:ZNGA)

Zynga (NASDAQ:ZNGA) shares are jumping 2% in the pre-market. Wedbush reportedly reaffirmed its "outperform" rating on the online gaming company and added it to its best ideas list.

5. Roche

Roche shares are sliding in the pre-market after the Swiss-based pharmaceutical company said it would buy privately-owned IQuum in a deal valued up to $450 million. The company primarily traders in Zurich, but there is an ADR with the symbol "RHHBY" available.