• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia

Trendingnow

1

Corporate America has been draining the world's water. Matt Damon's new campaign calls on Gap, Starbucks, and Amazon to help give it back

2

When SpaceX starts trading, some 'shareholders' will discover they own nothing at all

3

Current price of oil as of June 12, 2026

1

Corporate America has been draining the world's water. Matt Damon's new campaign calls on Gap, Starbucks, and Amazon to help give it back

2

When SpaceX starts trading, some 'shareholders' will discover they own nothing at all

3

Current price of oil as of June 12, 2026
Finance

After a rough September, investors can expect one thing for October: volatility

Anne Sraders
By
Anne Sraders
Anne Sraders
Down Arrow Button Icon
Anne Sraders
By
Anne Sraders
Anne Sraders
Down Arrow Button Icon
October 1, 2021, 2:49 PM ET
Video Poster

The S&P 500 is having flashbacks—to March 2020. Though September was by no means as painful for investors as last year’s bear market plunge, the S&P 500 closed out the month 4.8% down, its worst monthly performance since last March. And amid a cocktail of headwinds, investors may be wondering if they should batten down the hatches for October.

Around the Street, October “is known for some spectacular crashes and many expect bad things to happen again this year,” LPL Financial’s chief market strategist Ryan Detrick wrote in a Thursday note. “1929, 1987, and 2008 all come to mind when we think about this month.”

While there were clearly myriad factors playing into it this year, September was consistent with its reputation as one of the worst months of the year for stocks. Now entering October with red screens, should investors worry there’s more pain ahead?

“I think the kind of volatility we saw in September could easily persist in October,” Liz Ann Sonders, chief investment strategist at Charles Schwab, told Fortune. So far to kick off the new month, trading has been slightly choppy, with the S&P 500 dipping in the red before recovering to trade over 1.1% higher as of afternoon trading.

Others like Bank of America equity and quant strategist Savita Subramanian are wary, too. In September, Bank of America’s “Sell Side Indicator,” the firm’s “contrarian measure of Wall Street’s bullishness on stocks, declined to 58.5%.” That dip in bullishness “resonates with our cautious market view, especially heading into the [third quarter] earnings season, where multiple companies have already issued disappointing guidance amid a worsening inflation environment,” she wrote in a Friday note.

Indeed, LPL’s Jeff Buchbinder argues “earnings is the big near term risk” given how many companies have warned of supply chain issues, he told Fortune. Meanwhile, although he notes there’s a “low probability” of this happening, Bunchbinder suggests that “if it looks like the Democrats aren’t going to get anything done” in October regarding passing an infrastructure package, “we can see that as a risk to markets because investors have priced in some of that spending,” he suggests—even if failing to pass it could mean some relief in terms of tax increases in the near term.

In addition to earnings, other potential areas of concern for strategists like Schwab’s Sonders include inflation and the upcoming jobs report. “The worst case scenario, of course, is if we don’t see an easing of these inflation pressures and you start to see even worse data from either the labor market … or broad economic data, that would sort of cement the concerns about at least a short-term stagflationary environment,” she said. Sonders also points to the debt ceiling—and whether there may be a heightened risk of a rating agency downgrading U.S. debt—as a potential worry this month (Washington avoided a government shutdown at the eleventh hour on Thursday, but the possibility that the U.S. could default on its debt still looms).

A ‘misunderstood’ reputation?

However, setting aside this year’s macro factors, October’s reputation for being a rough month may not be all that deserved in recent years historically-speaking. “The truth is this month is simply misunderstood, as historically it is about an average month,” LPL’s Detrick wrote in the Thursday note. In fact, as he pointed out on Twitter, October has been the fourth-best month of the year for the S&P 500 in the past 10 and 20 years, and the fifth best in post-election years (of which 2021 is one).

Get ready to hear about some spectacular crashes during the month of October.

This month is simply misunderstood.

The past 10 and 20 years this is the 4th best month of the year for the S&P 500.

Since 1950 it ranks 7th and during a post-election year 5th. pic.twitter.com/uWWenrUaNA

— Ryan Detrick, CMT (@RyanDetrick) September 30, 2021

Meanwhile Buchbinder, for one, is relatively optimistic about the state of the macro picture going into the final quarter of the year, pointing out that “we’re still in an economic expansion, where you’re seeing slower, but still solid, GDP growth.”

But, along the lines of Schwab’s Sonders’ thinking, that doesn’t mean the month will necessarily be smooth sailing: LPL data also shows that “no month has seen more 1% moves (up or down) than October, with some of the largest 1-day moves (both up and down) taking place this month,” per LPL research. (They note that it’s been 21 years since October didn’t close “at least up or down 1%.”)

Ultimately, those like Bunchinder suggest thinking about October as “a volatile month consistent with history, but one where we think fundamentals have good chance of pushing stocks higher between now and Halloween.”

Subscribe to Fortune Daily to get essential business stories straight to your inbox each morning.

About the Author
Anne Sraders
By Anne Sraders
LinkedIn iconTwitter icon
See full bioRight Arrow Button Icon

Latest in Finance

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • World's Most Admired Companies
  • See All Rankings
  • Lists Calendar
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Finance

A deal to the end the U.S.-Iran war could be finalized within 24 hours. Tehran wants to charge ships crossing Hormuz ‘for services rendered’
Middle EastIran
A deal to the end the U.S.-Iran war could be finalized within 24 hours. Tehran wants to charge ships crossing Hormuz ‘for services rendered’
By The Associated PressJune 13, 2026
19 minutes ago
ravi
CommentaryWeather and forecasting
I spent 8 years flood-proofing a city. Capital markets are running out of time to take El Niño seriously
By Ravi S. BhallaJune 13, 2026
3 hours ago
herrin
CommentaryInfrastructure
America just committed $1.2 trillion to fix its infrastructure. We’re still flying blind
By Gregg HerrinJune 13, 2026
4 hours ago
Jamie Dimon says remote work breeds ‘rope-a-dope politics’ and stunts young workers’ growth
Successchief executive officer (CEO)
Jamie Dimon says remote work breeds ‘rope-a-dope politics’ and stunts young workers’ growth
By Marco Quiroz-GutierrezJune 13, 2026
5 hours ago
Gen Z fled San Francisco for Texas and Florida. Now they’re turning ‘welcomer cities’ into the next big tech towns
Real EstateGen Z
Gen Z fled San Francisco for Texas and Florida. Now they’re turning ‘welcomer cities’ into the next big tech towns
By Sydney LakeJune 13, 2026
5 hours ago
Inside the race to rebuild America’s fuel supply chain for a ‘second nuclear age’
EnergyNuclear
Inside the race to rebuild America’s fuel supply chain for a ‘second nuclear age’
By Jordan BlumJune 13, 2026
8 hours ago

Most Popular

Corporate America has been draining the world's water. Matt Damon's new campaign calls on Gap, Starbucks, and Amazon to help give it back
Environment
Corporate America has been draining the world's water. Matt Damon's new campaign calls on Gap, Starbucks, and Amazon to help give it back
By Catherina GioinoJune 9, 2026
4 days ago
When SpaceX starts trading, some 'shareholders' will discover they own nothing at all
Investing
When SpaceX starts trading, some 'shareholders' will discover they own nothing at all
By Jim EdwardsJune 12, 2026
1 day ago
Current price of oil as of June 12, 2026
Personal Finance
Current price of oil as of June 12, 2026
By Joseph HostetlerJune 12, 2026
1 day ago
American taxpayers have spent $33 billion on sports stadiums. They got fewer seats—and higher prices
Success
American taxpayers have spent $33 billion on sports stadiums. They got fewer seats—and higher prices
By Catherina GioinoJune 11, 2026
2 days ago
U.S. energy secretary says 7 million barrels of oil exiting Persian Gulf daily, but Chevron CEO rebuts the claim
Energy
U.S. energy secretary says 7 million barrels of oil exiting Persian Gulf daily, but Chevron CEO rebuts the claim
By Jordan BlumJune 12, 2026
19 hours ago
Anthropic disables Fable and Mythos AI models after U.S. government bars it from giving foreigners access
AI
Anthropic disables Fable and Mythos AI models after U.S. government bars it from giving foreigners access
By Jeremy KahnJune 13, 2026
10 hours ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.