Gerald Appel is the president of Signalert Corporation, an investment advisory firm that manages approximately $280 million in capital. Signalert also publishes the technical newsletter Systems and Forecasts, highly rated by The Hubert Financial Digest and by Timer Digest for its performance in market timing.
Gerald developed the Moving Average Convergence-Divergence (MACD) Indicator, and has written twelve books relating to investment strategies, including Winning Market Systems, Double Your Money Every Three Years, Stock Market Trading Systems, The Big Move, New Directions in Technical Analysis (co-author, Dr. Martin E. Zweig), and Time-Trend III. In addition, Gerald has had many articles published in such publications as Money, Barron's, and Stocks and Commodities magazines. He has also produced and appeared in a number of videotapes related to technical investment strategies. Gerald has presented at a number of seminars within the United States and abroad, and has appeared on "Wall Street Week" with Louis Rukeyser and is a frequent guest on other television programs on the financial news networks and elsewhere.