Wall Street's record breakouts unravel as investors dump recent winners: Chart of the Day

The S&P 500's record breakout has reversed. Most of its stocks still finished the week higher.

The S&P 500 ( ^GSPC ) lost roughly 2% this week, with selling accelerating into Friday. It finished near 7,659, back below the August high it finally cleared earlier this month.

New records were supposed to open the door to another advance. Buyers couldn't keep it open.

The index reached nearly 7,845 on Oct. 6, briefly exceeding its August peak near 7,817. Friday's close left that breakout underwater.

That's the setup for a bull trap — a move above an established high that reverses, catching investors who bought the breakout.

The pattern is repeating across some of the market's biggest names.

The Nasdaq Composite ( ^IXIC ) lost roughly 4.5% this week, reversing its recent breakout above earlier summer and September highs.

The Technology Select Sector SPDR Fund ( XLK ) and Nvidia ( NVDA ) also broke above records set months earlier. Both have since fallen back below those peaks.

Palantir ( PLTR ) took nearly a year to reclaim its November record. Its brief victory quickly unraveled , and Friday's close confirmed a correction — leaving the stock down roughly 11% for the week.

The selling is landing hardest on many of the stocks investors had rewarded most.

Eighteen of the S&P's 20 biggest weekly decliners ranked among its 100 strongest performers from March 30 through Oct. 6, according to Yahoo Finance calculations.

Dell ( DELL ) and Hewlett Packard Enterprise ( HPE ) both more than tripled during that earlier advance. Both lost over 20% this week.

Yet buyers haven't abandoned the market.

Roughly 72% of S&P constituents finished the week higher. The Invesco S&P 500 Equal Weight ETF ( RSP ) gained roughly 0.5%. By giving each company roughly the same weight, it reduces the influence of the biggest stocks — showing how their losses can obscure gains elsewhere.

The reversal in leadership is striking. The 100 strongest S&P stocks from March 30 through Oct. 6 lost roughly 5% on average this week. The 100 weakest gained roughly 4%.

The immediate repair job is reclaiming roughly 7,800 on the S&P and 27,200–27,300 on the Nasdaq — then holding those levels.

Buying beyond the former leaders is giving the market some support. If that participation holds, it could help the indexes recover. If it fades, the failed breakouts would become a broader warning.

Internal AI tools helped analyze interview transcripts, research, and draft this post. Humans reviewed, edited, and fact-checked this post before publication.

Jared Blikre is the global markets and data editor for Yahoo Finance. Follow him on X at @SPYJared or email him at jaredblikre@yahooinc.com.