Rally means a significant rise or increase in the prices of indexes, stocks or other securities. A rally is a general market phenomenon and it can occur during a Bull or a Bear market known as Bull market rally or Bear marker rally, respectively.
What are the features of a market rally?
Some features which define a rally are :
a. A rally can be sustainable or short lived but it is usually followed by sideways movement or decreasing prices
b. Rally also depends on available liquidity, category of sellers, general economic trajectory etc
c. Short term rallies can be news based, event based or due to demand supply mismatch
d. Some large buyers jumping in can also result in short term rallies