If you think the smart move is to sell everything during scary markets and jump back in when things look sunny, I have some unfortunate news for you.
Two pieces of market data make this approach far harder than it sounds.
Most Gains Happen in Remarkably Few Days
Here’s the first factoid: on average, about 10 trading days per year account for most of that year’s market gains. That’s roughly 4% of all trading days.
Think about that for a second. If you miss those 10 days because you were sitting in cash waiting for the “right moment,” your annual performance takes a serious hit.
Over a 30-year period, the numbers get even more striking. Missing the best 10 trading days eliminates about 40-60% of your total potential gains. Missing the best 20 days? You’ve just wiped out 60-70% of what you could have earned.
So if you’re planning to time the market, you need to be fully invested during roughly 10 specific days out of 7,500 trading days over three decades. Good luck with that.
Even with all the computing power in the world, consistently predicting which 10 days those will be is virtually impossible. The information you’d need simply doesn’t exist beforehand.
The Best Days Hide in the Worst Weeks
Now here’s where it gets interesting.
You might think the best trading days happen during calm, pleasant markets when everything feels safe and comfortable. That would make timing a lot easier.
Unfortunately, the opposite happens.
Looking at decades of S&P 500 data, 60-70% of the best trading days fall within two weeks of the worst trading days. Nearly half of the best days occur within just one week of major declines.
Read that again. The explosive gains you’re trying to capture happen either right in the middle of, or very close to, the chaos you’re trying to avoid.
The strongest recovery days typically occur when markets feel most dangerous and uncertain. Which is exactly when most people are least willing to invest.
If you’re waiting for blue skies and palm trees before you get back in, you’ve already missed it.
Why Timing Doesn’t Work
Here’s the fundamental problem with market timing: you need to make two correct decisions.
First, you need to know when to get out. Then you need to know when to get back in.
Getting the exit right but missing the re-entry? You’ve accomplished nothing. Actually, you’ve probably made things worse because you’re now sitting on cash while the market starts its recovery without you. And the early recovery days are often explosive.
And doing this correctly, repeatedly, over decades? The track record suggests it’s not happening. Not for professionals with teams of analysts, and certainly not for individual investors.
The problem comes down to how information works in markets. The clarity and precision you need to make perfect timing decisions only exists in hindsight or the movies.
What About Overvalued Or Bubble Conditions?
Does this mean you should be 100% invested all the time, no matter what?
No. That’s not what I’m saying.
When valuations get extreme, when you’re watching obvious frothy or bubble stock market behavior, reducing your equity exposure and holding some cash makes sense. I’ve done it myself.
The trick lies in recognizing that identifying overvaluation and timing the exact correction are two different problems.
Markets can stay overvalued a lot longer than you think. What looks expensive can get more expensive. Eventually, the decline comes, but predicting exactly when? That’s the hard part.
It’s like those roller coasters that keep climbing higher and higher, then dip just a little, climb more, dip again, making you think “this is it” multiple times before the actual big drop finally happens. If you bail out too early, you miss the continued climb. If you wait for absolute certainty, you miss the opportunity.
What Actually Works
For most investors, staying consistently invested through full market cycles beats trying to jump in and out at perfect moments.
You can still use valuation to inform your position sizing and asset allocation. You just don’t use it to make dramatic all-or-nothing timing calls.
Volatility isn’t something to fear and avoid. Embrace it! Profit from it. It’s the price of admission for long-term equity returns. Those scary periods you want to escape? They’re often right before the strongest gains.
At Compounders Stock Market Academy, we teach frameworks for managing risk and position size that are easy to implement, without getting all tangled up in impossible market timing.
Time in the market beats timing the market. I know that sounds like a bumper sticker, but it’s backed by decades of data showing how returns actually distribute.