Something unusual is happening on Wall Street.
The Nasdaq just closed at a fresh record high, gaining 1.05% to 27,477.31.
The S&P 500 added 0.66%, finishing at 7,773.95 and sitting close to its own record.
QQQ also gained 0.88%.
On the surface, everything looks bullish.
But there is another number investors should be watching:
The US 10-year Treasury yield just moved above 5.3%.
It reached around 5.32%, its highest level since 2002. 
Normally, higher long-term yields create a problem for growth stocks.
Why?
Because when Treasury yields rise, investors can earn more from relatively low-risk government bonds. At the same time, higher borrowing costs can pressure companies and make future earnings less valuable when discounted back to today.
That should be particularly relevant for expensive technology stocks.
Yet the Nasdaq is still making records.
So what is holding it up?
1️⃣ Earnings are doing the heavy lifting
One argument is that this rally isn’t simply about investors paying higher and higher valuations.
Corporate earnings — particularly among the biggest technology companies — remain a major source of support.
Nvidia, Microsoft, Meta and other mega-cap names helped drive Monday’s advance, while investors are looking ahead to the next round of quarterly earnings. 
If earnings continue to grow quickly enough, investors may be willing to tolerate higher bond yields.
That’s an important distinction.
A stock market can potentially absorb higher rates if profits are growing faster.
2️⃣ The Fed expectations have changed
The weaker-than-expected US jobs data has also changed the rate outlook.
Markets have sharply reduced expectations for an October Fed hike, which has helped support equities even as the long end of the Treasury curve remains under pressure. 
In other words, investors may be thinking:
Higher long-term yields are a problem — but an immediate Fed hike may be less of a problem.
That has given growth stocks some breathing room.
3️⃣ But the bond market is sending a warning
This is the part I find most interesting.
The 10-year yield isn’t rising because investors suddenly became more optimistic about bonds.
Higher yields reflect concerns around inflation, government borrowing, heavy Treasury issuance and elevated energy prices. 
And higher borrowing costs are already starting to affect corporate America, particularly companies with weaker credit profiles or large refinancing requirements. 
So the question isn’t whether 5.3% yields matter.
They do.
The question is when they start mattering enough to change equity behaviour.
📊 THE BATTLE AHEAD
Right now, the market seems to be choosing:
Strong earnings > higher yields
But that equation could change.
If earnings estimates keep rising, the Nasdaq may continue to absorb higher rates.
If earnings disappoint while the 10-year remains above 5%, investors could suddenly start asking whether record valuations still make sense.
And that’s where the market gets interesting.
A record Nasdaq and a 5.3% Treasury yield can coexist.
But they probably can’t ignore each other forever.
For me, the next few weeks are less about whether the Nasdaq can hit another record and more about whether earnings growth can stay strong enough to justify owning equities when bonds are offering increasingly attractive yields.
The market is clearly betting that earnings will win this battle.
But which side would you back right now — 📈 strong earnings or 📉 rising bond yields?
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