A good technical analysis means being able to find the indicators that will help to determine the overall direction of the market, especially since so many stocks are influenced by S&P 500 stock futures.
Sometimes, technicians start by comparing the chart of an individual company to the chart of an average to determine the legitimacy of a move, a tactic known as confirmation.
For instance, if the Dow Jones industrial average hits a new high, historically it is not sustainable unless the Dow Jones transportation average also hits a high, or confirms the breakout status of the Dow itself.
If both the industrials and the transports hit new highs, Cramer feels secure in blessing the move as legitimate.
Other indicators that Cramer watches are the banking index, the housing index, the semiconductor index and the ETF that encompasses large retailers.
"I like to see all of these indexes move up in sync before I truly bless a market move," the "Mad Money" host said. "You get all of these indexes rolling higher, and you have to put the maximum amount of chips on the table."
The inverse is also true. If there is a move up without confirmation from a majority of the indexes, then the whole rally could be fake and should not be trusted. Cramer saw this occur right before the 2008 financial crisis, when there was no participation from the financials, retail or tech.
Additional factors Cramer considers are stocks' advances and declines, which indicate if a rally is too concentrated. He likes to see a market with good participation from many different groups.
Cramer also looks at the new-high-to-new-low ratio, since stocks that make the new high list are worth watching. It is not easy to get on the list, so any company hitting new highs must be doing exceptionally well, be part of a strong sector, and be privy to stronger geopolitical forces pushing it higher, he said.
"You may not be a technician, but you need to know what the charts are saying and you need to know how to read the internals to verify a real move or a phony one," Cramer added.
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