A simple way to create capital is to set aside a certain portion of your income at regular intervals, for example 10% of your salary, and invest this money. Usually it is convenient to do this once a month, but other options are also possible: once a fortnight, once a quarter - whatever suits you.
Beginning investors often worry about which securities to buy when adding to their portfolio, and at what exact moment to buy them. But there is a simple strategy that helps you not to think about it.
The bottom line is that you regularly buy the same assets with the same amount of money - and it doesn't matter what happens in the stock market.
For example, you have assembled a portfolio for yourself: 60% in stocks and 40% in bonds. For simplicity, let's imagine that the SPY fund plays the role of stocks - stocks of large U.S. companies, and bonds are the AGG fund, consisting of U.S. corporate and government bonds. This is not a recommendation, just an example.
You set yourself a date for replenishment: for example, every first Monday of the month. And you decide that you are ready to invest, for example, $333 every month.
On the appointed date, you deposit $333 into your brokerage account. With $200 you buy SPY, and with $133 you take AGG. You do this every first Monday of the month, and it doesn't matter if the market is growing or there is a crisis. If the securities have fallen in price, you buy more securities for the same amount, if they have risen in price - less.
This strategy is called averaging even investment. The disadvantage of this approach is that it is boring. The plus side is that with this strategy you do not have to be afraid of an unexpected fall in securities. An unexpected drop can happen even the day after you buy the securities - so be it: in case of a drop, you will just buy more securities for the same money.
You can do something different and combine portfolio replenishment with rebalancing. In this case, you use the money you contributed to buy securities so that SPY's share in the portfolio becomes 60% and AGG's share becomes 40%. For example, if SPY gets very cheap in a crisis, you will spend all or almost all of your contribution to buy shares of this fund. Then your portfolio will almost always be in line with your investment plan.
It doesn't matter how often you replenish your portfolio - every two weeks, once a month or quarter. The main thing is to invest regularly and do it no matter what. And to reach your goal faster, try to gradually increase your contributions. If you invested $333 per month in the first year, try investing, for example, $417 per month in the next year, then $500 and so on.
If you already have a large amount of capital that you want to invest, this is not the case. It makes little sense to invest only part of the capital every month and keep the rest under the mattress waiting for the next month. On average, it is more profitable to invest everything at once. If you are afraid of a crisis, make a portfolio that is not too risky - with a large share of safe bonds.
To build a large capital, you need to invest additional money on a regular basis: for example, the same amount every month in the same assets. You can also choose another period, such as a quarter, but a month is usually the most convenient.
If you can increase your contributions over time by at least the rate of inflation, that's good. If you can greatly increase the amount of money you contribute to the portfolio, even better.