Definition
Resistance is a chart area where prior selling or reduced buying has repeatedly slowed or reversed upward price movement within the selected timeframe.
In market context
Technical analysts draw resistance from previous highs, ranges, trend lines, moving averages, or other observed structures, so different analysts may choose different levels. A move above the area can be interpreted as a breakout, while failure can preserve the range. Resistance is not a physical barrier or guaranteed reversal price, and rapid execution around a widely watched level can create gaps and slippage.
Source
Use the primary source for fuller regulatory or market context.
