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When to start investing in an index fund? Wait for a bear market, use dollar cost-averaging, or another approach?
The fact that you are choosing index fund means you are surely not one of those investors who can correctly judge dips. But buying on dips is still important. You can use a method called Dollar Value Averaging. It is better than Dollar Cost Averaging. Just make sure you apply a lower limit and an upper limit to be more predictable. Suppose you have 10000 to invest. Use limits like minimum 200 investment when index is high, maximum 600 investment when index is down and when index gives normal returns, invest 400. Do this for about 2 years. More than 2 years is not recommended. I myself use this method and benefit a lot.