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

Why the rest of April could be rocky for stocks

Anne Sraders
By
Anne Sraders
Anne Sraders
Down Arrow Button Icon
Anne Sraders
By
Anne Sraders
Anne Sraders
Down Arrow Button Icon
April 19, 2021, 3:21 PM ET

So far in April stocks have had a great month, with the S&P 500 and Dow Jones industrial average notching all-time highs. But things may be about to take a rockier turn for investors from here on out.

That’s in part because, although April generally tends to be one of the best months for the stock market, historically most of those gains are racked up in the first half of the month, per LPL Financial data.

April is a great month for stocks, but be aware historically most of gains happen the first few weeks.

Not to mention how the second half of each month so far this year has been way weaker than the first half. pic.twitter.com/fsxOCAXrUL

— Ryan Detrick, CMT (@RyanDetrick) April 18, 2021

Indeed, LPL’s Ryan Detrick tells Fortune that “this year, we’ve seen the pattern play out the first three months of really strong equities [in] the first half of the month and then some weakness the second half of the month,” and that “the last 10 days or so of April are kind of a little more rocky,” he says. What’s more, he notes that “the worst six months of the year historically is May through Halloween, and that is obviously on the horizon after just a record-breaking 12-month rally.”

Adds Detrick: “The calendar could potentially be one of investors’ biggest near-term worries.”

That would certainly be a turnaround from what has been a smooth stretch for investors, with volatility (as measured by the VIX index, or fear gauge) falling to pre-pandemic levels. That has prompted some firms like UBS to caution that, “with markets continuing to hit record highs, some investors are concerned that the recent decline in volatility may not last,” predicting “periodic bouts of higher volatility in the near term,” UBS Global Wealth Management chief investment officer Mark Haefele wrote in an April 9 report.

But more than that, those like Detrick note there’s so much bullishness all around that that might be its own warning sign: “The No. 1 concern, at least for me, is just everything is really good.” With strong economic data coming out and an expected “blowout” Q1 earnings season kicking off, “the contrarian in me wonders how much of this good news is priced in,” Detrick says. That’s why he wouldn’t be surprised if stocks saw a correction (technically a 10% selloff) or two in the coming months.

Meanwhile with investors pushing stocks up to all-time highs, valuations keep soaring (the S&P 500’s trailing P/E is a heady 33 times earnings). That in itself is making some analysts and market watchers alike wary.

So far on Monday, stocks are down across the board, with the S&P 500 down roughly 0.6%, the Dow off around 0.4%, and the Nasdaq over 1.1% lower in afternoon trading.

But neither the historically weaker seasonality nor the prospect of higher volatility in the near term are putting analysts off their bullish longer-term expectations. “It’ll be scary when it happens,” argues Detrick, “but investors need to start preparing for it…and use it as an opportunity to get things a little cheaper, which again is the name of the game in [what] we still think is an upward bull market.”

More must-read finance coverage from Fortune:

  • Why you can expect Coinbase to have a very hard time justifying its $61 billion market cap
  • Why a million and one startups all seem to do the same thing now
  • Commentary: No, we are not in another housing bubble
  • COVID’s educational impact: 25% of students postponed college
  • These analysts make the “bull” case for Coinbase’s stock
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

hathaway
Arts & EntertainmentHollywood
‘The Devil Wears Prada 2’ broke the box office. It may also be the last great victory for Hollywood’s IP machine
By Nick LichtenbergMay 9, 2026
1 hour ago
joaquin
Commentary250 Years of Innovation
Johnson & Johnson CEO: America’s innovation advantage starts with health 
By Joaquin DuatoMay 9, 2026
2 hours ago
Investors are betting big on senior housing. There’s just one problem—the baby boomers they’re chasing can’t pay the rent
Real Estatebaby boomers
Investors are betting big on senior housing. There’s just one problem—the baby boomers they’re chasing can’t pay the rent
By Sydney LakeMay 9, 2026
2 hours ago
Qualcomm’s CEO is working with ‘pretty much all’ major AI players on top-secret devices—and powering OpenAI’s first push into hardware
AIQualcomm
Qualcomm’s CEO is working with ‘pretty much all’ major AI players on top-secret devices—and powering OpenAI’s first push into hardware
By Eva RoytburgMay 9, 2026
3 hours ago
tyler
EconomyRecession
This economist studied 400 years of recessions. His bleak conclusion: stop trying to predict them
By Nick LichtenbergMay 9, 2026
3 hours ago
‘If he tells you he can beat me, I’ll sue!’: Inside the $9 billion friendship between the CEOs of Amex and Delta
C-SuiteFinance
‘If he tells you he can beat me, I’ll sue!’: Inside the $9 billion friendship between the CEOs of Amex and Delta
By Shawn TullyMay 9, 2026
4 hours ago

Most Popular

California farmers must destroy 420,000 peach trees after Del Monte closes its canneries and cancels more than $550 million in long-term contracts
North America
California farmers must destroy 420,000 peach trees after Del Monte closes its canneries and cancels more than $550 million in long-term contracts
By Sasha RogelbergMay 7, 2026
2 days ago
A Michigan farm town voted down plans for a giant OpenAI-Oracle data center. Weeks later, construction began
Magazine
A Michigan farm town voted down plans for a giant OpenAI-Oracle data center. Weeks later, construction began
By Sharon GoldmanMay 6, 2026
3 days ago
'Blue dot fever' plagues musicians like Post Malone, Meghan Trainor, and Zayn as a growing list of artists cancel tours due to lagging ticket sales
Arts & Entertainment
'Blue dot fever' plagues musicians like Post Malone, Meghan Trainor, and Zayn as a growing list of artists cancel tours due to lagging ticket sales
By Dave Lozo and Morning BrewMay 7, 2026
2 days ago
Current price of oil as of May 8, 2026
Personal Finance
Current price of oil as of May 8, 2026
By Joseph HostetlerMay 8, 2026
1 day ago
The CEO of Maersk, which ships 14% of everything you buy, said the Iran war is adding $500 million in monthly costs it's trying not to pass down
Energy
The CEO of Maersk, which ships 14% of everything you buy, said the Iran war is adding $500 million in monthly costs it's trying not to pass down
By Sasha RogelbergMay 8, 2026
20 hours ago
Airbnb CEO Brian Chesky warns two types of people won’t survive the AI era: ‘pure people managers’ and workers who resist change
Success
Airbnb CEO Brian Chesky warns two types of people won’t survive the AI era: ‘pure people managers’ and workers who resist change
By Emma BurleighMay 7, 2026
2 days 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.