Cash arrives.

A stock drops 8%.

And suddenly there is a compelling reason to buy.

But before I buy any individual US stock, I start with a far less exciting question…

Is the SP500 or Nasdaq actually displaying momentum?

Because if the SPX is flat, rolling over, or unable to hold a trend, I am generally not interested in adding fresh single-stock risk.

Why?

Most retail investors massively overrate alpha and underrate beta.

They spend three nights researching a company, read the earnings transcript, build a spreadsheet, and decide they have found something the market has missed.

Then broad passive flows go quiet.

The index drifts lower.

Their wonderful company gets sold anyway.

That is not a failure of your research. It is a failure to understand what is moving the market around you.

Individual stocks do not trade in a vacuum. When large pools of capital are flowing into US equities, good stocks tend to get help. Momentum broadens. Breakouts hold.

When those flows are flat, every position has to fight much harder for oxygen.

The retail advantage is being able to hold beta when it is working, then manage that exposure with enough discipline that one ugly reversal does not turn a sensible position into a bag you explain to your wife at dinner.

So sometimes the right move is to do absolutely nothing.

Watch the SPX.

Wait for momentum to return.

Keep your capital intact while everyone else convinces themselves activity is the same thing as progress.

The overriding point here is simple: your stock selection matters far more when the market is willing to reward risk.

I wrote more about why beta matters so much for retail investors here: why beta outperforms alpha for retail investors

David Belle

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