Stock Market Today: S&P Up 7 Straight Months, But September Looms

The S&P 500 closed August higher, but this relentless bull market is about to butt heads with a seasonal streak-buster.

September 2021
(Image credit: Getty Images)

The stock market closed out August with a mellow session that left the major indexes little changed Tuesday. But the S&P 500 still managed to mark its seventh consecutive monthly gain.

There was little new economic data to stir traders. The S&P CoreLogic Case-Shiller US National Index showed that American home prices rocketed 18.6% year-over-year in June – the largest such increase since the index was created in 1987. However, the Conference Board showed consumers were less confident than expected in August, with a reading of 113.8 coming in well below the consensus estimate of 123.0.

"Over the past year or so, confidence has risen sharply, coming off the trough at the start of the pandemic, and was approaching pre-pandemic highs. Both [the Michigan and Conference Board] surveys were saying the same thing," says Brad McMillan, chief investment officer for Commonwealth Financial Network. "Then something started to change. Two months ago, the Michigan number pulled back a bit, before dropping sharply last month. The Conference Board number stayed high, but that disconnect said that something was likely going on and that the numbers were likely to converge again at some point, either up or down.

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"Well, it didn’t take that long – and the answer was down. This morning, the Conference Board reading was down sharply, meaning that the Michigan number is the better indicator and that confidence has indeed started to slump. We may well be looking at a change in trend on consumer confidence."

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Stocks mostly flipped between small gains and losses and broadly finished mixed. The S&P 500 was off just 0.1% to 4,522, giving it a 2.9% gain for August – that extended its monthly win streak to seven, which the index has accomplished just 14 other times since 1950.

The Dow Jones Industrial Average (-0.1% to 35,360) also finished with a monthly gain, of 1.2%, as did the Nasdaq Composite (down marginally to 15,259), up a hefty 4.0% in August.

Other news in the stock market today:

  • The small-cap Russell 2000 finished in the black, advancing 0.3% to 2,273.
  • Work-from-home darling Zoom Video Communications (ZM (opens in new tab), -16.7%) plunged on Tuesday after the company managed to beat second-quarter earnings expectations but signaled that growth is normalizing – prompting a number of price-target reductions among the analyst crowd. "The company is seeing an uptick in customer churn in the <10 employee cohort, with headwinds expected to persist through the year," says Oppenheimer's analyst team, which rates the stock at Perform (equivalent of Hold). "We believe the next 2-3 quarters could present challenges as a new usage 'steady state' is established, and we expect the shares to come under pressure in the near term as shareholders realign their expectations."
  • "Big Four" bank Wells Fargo (WFC (opens in new tab), -5.6%) also struggled today amid a Bloomberg report indicating that it hasn't sufficiently put its misconduct-plagued past behind it. Specifically, "the Office of the Comptroller of the Currency and the Consumer Financial Protection Bureau have warned the firm they may bring new sanctions over the company's pace in fulfilling those obligations, according to people with knowledge of the situation," Bloomberg reports. The bank has been working for years to institute better internal controls and repay victims in the wake of multiple scandals, most notably the opening of millions of accounts on behalf of clients who did not provide consent.
  • Worries about a drop in refinery demand in the wake of Hurricane Ida weighed on U.S. crude oil futures, which dropped 0.8% to $68.68 per barrel.
  • Gold futures improved 0.3% to $1,818.10 per ounce.
  • The CBOE Volatility Index (VIX) improved by 1.8% to 16.48.
  • Bitcoin declined 2.8% to $47,295.56. (Bitcoin trades 24 hours a day; prices reported here are as of 4 p.m. each trading day.)

stock chart for 083121

(Image credit: Getty Images)

Watch Out! This Next Month's a Doozy

September is nigh, and apples and pumpkin spice aren't the only things in the air.

The S&P 500 is up 20.4% in 2021 and has set 53 new all-time highs along the way, breaking the 1964 record – but it faces the seasonal brick wall that is September.

"Although this bull market has laughed at nearly all the worry signs in 2021, let's not forget that September is historically the worst month of the year for stocks," says LPL Financial Chief Market Strategist Ryan Detrick. "Even last year, in the face of a huge rally off the March 2020 lows, we saw a nearly 10% correction in the middle of September."

"The S&P 500 hasn't had so much as a 5% correction since last October and with stocks up more than 100% since March 2020, investors should be open to some potential seasonal weakness. The good news is we remain in the camp that stocks will continue to go higher and investors should use any weakness as an opportunity to add to core equity holdings."

One way you can double the benefits of a temporary dip is to buy dividend payers – not only do you get a better entry point, but lower prices also help fatten your yield on cost. So if you're eyeballing high-quality, high-yield stocks (opens in new tab), or persistent payers like these monthly dividend stocks and funds (opens in new tab), September might present you with a sweeter opportunity.

Same goes for these real estate investment trusts (REITs), which are required to dole out most of their earnings in the form of dividends, typically resulting in loftier yields than most other market sectors. Check them out.

Kyle Woodley
Senior Investing Editor,

Kyle is senior investing editor for As a writer and columnist, he also specializes in exchange-traded funds. He joined Kiplinger in September 2017 after spending six years at, where he managed the editorial staff. His work has appeared in several outlets, including U.S. News & World Report and MSN Money, he has appeared as a guest on Fox Business Network and Money Radio, and he has been quoted in MarketWatch, Vice and Univision, among other outlets. He is a proud graduate of The Ohio State University, where he earned a BA in journalism.