Generally the "topping off" price of a stock, often referenced in day trading. The stock can, but usually does not, rise above this "resistance level".
Example: If XYZ has support level of 93, and is at 92.50, it's a good indication to sell. It could still rise, but likely won't rise above 93.
Also referred to as "resistance level" or "resistance" in stock trading and in a day trading system. Here is an example of what we found in the trading room.
The inverse of resistance is the stock support level.
Related terms: trendline, downtrend, uptrend