Vacation next year
Short horizon, little room for a market decline.
Investing
Time horizon is how long until you expect to need the money. It changes how much investment risk a goal can reasonably tolerate.
Investing 101 • 10
It matters because losses are harder to absorb when the spending date is close.
It does not guarantee a positive result, but it changes how urgent short-term price movements are.
Short horizon, little room for a market decline.
Long horizon, more time before the money is needed.
Your ability and willingness to tolerate losses still matter, along with diversification and the purpose of the money.
Remember this
The closer the goal, the less room you usually have for a large loss at the wrong time.