SIP refers to the Systematic Investment Plan is an investment strategy wherein an investor needs to invest the same amount of money in a particular mutual fund at every stipulated time period.
Investing in SIP enables an investor to take part in the stock markets without actively timing them and he/she can benefit by buying more units when the price falls and fewer units when the price rises.
STP refers to the Systematic Transfer Plan whereby an investor is able to invest lump sum amount in a scheme and regularly transfer a fixed or variable amount into another scheme.
In case of a volatile market, STP helps the investors to periodically transfer funds from one scheme (source scheme) to another (target scheme) and help them save the effort and time by compressing multiple instructions required for redemption from one scheme to invest in the other into a single instruction.Transfers are usually made from debt funds to equity funds if the market is doing well and vice versa if the market is not performing well.
SWP refers to the Systematic Withdrawal Plan which allows an investor to withdraw a fixed or variable amount from his mutual fund scheme on a preset date every month, quarterly, semi-annually or annually as per his needs.
An investor can customize the cash flows as desired; he can either withdraw a fixed amount or just the capital gains on his investments. SWP provides the investor with a regular income and returns on the money that is still invested in the scheme.