What does it mean when you invest more in robo advisors during this economic downfall? Does it also mean that you are buying cheaper stocks and more units of stocks?

This is likely based on the concept of dollar cost averaging.

In essence, you keep your capital the same. When the price of an asset drop, you are able to purchase more units.

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Dollar Cost Averaging

However, take note that in order for dollar cost averaging to work, it is assumed that the asset value will rise eventually (Example 3). Otherwise, you will end up losing more money over time (Example 1).

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