The specific reason for the conference call wasn't disclosed in a statement the companies released Sunday.
"Walmart and American Express are committed to providing innovative financial services solutions to help consumers reduce costs and better manage their everyday finances," the two companies said.
The conference call begins at 8:30 a.m. EDT.
Zynga (ZNGA), the social gaming company, saw its shares fall 12% to $2.48 on Friday after it forecast a loss for the third quarter and lowered its full-year outlook. For the full year, Zynga said it expects bookings between $1.085 billion and $1.1 billion, down from a previous range of $1.15 billion and $1.225 billion. "The change in outlook is primarily due to reduced expectations for certain Web games including The Ville, and delays in launching several new games," Zynga said in a statement last week. Apple, Zynga, Sourcefire: Tech Winners & Losers
General Motors (GM) said it and its joint ventures in China sold 244,266 vehicles in the country in September, an increase of 1.7% from last year. Al Gore Walks Away From Green Energy
AngioDynamics (ANGO), the medical instruments maker, is expected by analysts Monday to post fiscal first-quarter earnings of 9 cents a share on revenue of $84.4 million.
-- Written by Joseph Woelfel
>To contact the writer of this article, click here: Joseph Woelfel
Select the service that is right for you!COMPARE ALL SERVICES
Jim Cramer and Stephanie Link actively manage a real portfolio and reveal their money management tactics while giving advanced notice before every trade.
- $2.5+ million portfolio
- Large-cap and dividend focus
- Intraday trade alerts from Cramer
- Weekly roundups
Access the tool that DOMINATES the Russell 2000 and the S&P 500.
- Buy, hold, or sell recommendations for over 4,300 stocks
- Unlimited research reports on your favorite stocks
- A custom stock screener
- Upgrade/downgrade alerts
Jim Cramer's protege, David Peltier, identifies the best of breed dividend stocks that will pay a reliable AND significant income stream.
- Diversified model portfolio of dividend stocks
- Alerts when market news affect the portfolio
- Bi-weekly updates with exact steps to take - BUY, HOLD, SELL
All of Real Money, plus 15 more of Wall Street's sharpest minds delivering actionable trading ideas, a comprehensive look at the market, and fundamental and technical analysis.
- Real Money + Doug Kass + 15 more Wall Street Pros
- Intraday commentary & news
- Ultra-actionable trading ideas
Our options trading pros provide daily market commentary and over 100 monthly option trading ideas and strategies to help you become a well-seasoned trader.
- 100+ monthly options trading ideas
- Actionable options commentary & news
- Real-time trading community
- Options TV