Jim Rohrbach, a top timer for over three decades -- and one who successfully side-stepped the recent decline -- just issued a buy signal for the NYSE in his Investment Models.

"I am a mechanical investor. Each day my proprietary RIX indicator converts the stock market action into numbers that represent the trend of the market. These numbers then trigger buy or sell signals for the NYSE and the Nasdaq. It's that simple.

"And because the readings are mathematical, there is subjective interpretations. No guessing, no predicting, and no anticipating. I never try to out-guess my strategy. I act on every signal, without question, because I know that over the past 36 years I have caught every major up move and I have avoided every major decline.

"Big up moves do not come very frequently, so you have to take advantage of it by staying in the market until it peaks and turns down. I am going 100% invested today. I believe that the market can give us a nice up move from here.

Timing expert Jim Rohrbach, who successfully side-stepped the recent market decline, has just issued a buy signal for the NYSE in his Investment Models newsletter.

To assess what the market is doing, Rohrbach has been compiling an indicator -- known as the RIX -- every day for 36 years. Via this system, he has garned one of the top reputations in among timers.

His latest sell signal came on July 25, and since that time, the market declined some 900 points. His system has now issued a buy signal for the NYSE, and he has now moved to a 100% invested position.

Although the actual data used in compiling his RIX indicator is proprietary, he does notes that it coverts the action of the stock market into a specific number that identifies the changes in the market's trend. Whatever its makeup, the RIX has caught most of the major market moves of the past three decades.

Concerning his latest buy, he notes, "I wasn't too crazy about getting in on this signal because I was hoping that the market would sustain a larger loss. But, I never try to out-guess the strategy. I am a mechanical investor. I act on every signal, without question."

Each day, Steven Halpern's TheStockAdvisors.com features the latest investment ideas and market commentary from the financial newsletter community.