Buying the dip is an investment strategy in which an investor deliberately purchases securities — stocks, index ETFs, or mutual fund units — following a short-term price decline, with the expectation that the decline is temporary and the underlying uptrend will resume, making the lower price an attractive entry point. The strategy is rooted in the contrarian principle of acquiring assets at a discount to recent prices, capitalising on the panic or risk aversion of other investors who sold during the dip. Buying the dip is most effective in structurally strong bull markets where temporary corrections are followed by trend resumption — as seen in India's post-COVID recovery rally where every correction in Nifty 50 between 2020 and 2022 presented profitable buying opportunities. The critical risk is distinguishing a temporary dip (a healthy pullback in an ongoing uptrend) from the beginning of a sustained downtrend or bear market — buying the dip in a structurally deteriorating market can lead to averaging down into a losing position. Successful dip buying requires analysis of whether the decline is driven by external macro factors (temporary) or fundamental company or sector deterioration (potentially structural). In Indian mutual fund SIPs, buying the dip is institutionalised — SIP investors automatically accumulate more units when markets fall, building a lower average cost without requiring active trading decisions.