Despite the weak finish, October has been a strong month for stocks. The S&P 500 has gained 5.5% for the month of October, which saw the market rebound from an early autumn drawdown. In September, concerns about supply chain constraints and rising bond yields pushed stocks lower.

Several factors enabled stocks to rebound this month. Bond yields have paused in their larger ascent. Companies have mostly beat earnings estimates. And while risks still remain—yields aren’t necessarily finished rising and supply chain constraints aren’t easing much—retail investors bought the dip.

“They [retail investors] saw the 5% [market decline] and so when they see the opportunity to buy down 5% they step in and they do that,” said John Ham, wealth advisor at New England Investments & Retirement Group.  

Big Tech earnings put the issue of shortages on center stage on Friday.

Apple

(ticker: AAPL) stock fell 2.1% after the company reported a profit of $1.24 a share, in line with estimates, on sales of $83.4 billion, below expectations for $84.9 billion. The company said supply-chain constraints due to chip shortages were worse than expected. iPhone sales were $38.9 billion, below expectations for $41.5 billion. 

Amazon

(AMZN) stock dropped 2.9% after the company reported a profit of $6.12 a share, missing estimates of $8.92 a share, on sales of $110.8 billion, below expectations for $111.6 billion. The company said labor shortages, higher shipping costs, and other rising expenses are eating into profits. Management also guided for current quarter sales of $135 billion at the midpoint of its range, below analysts’ expectations for $142 billion. 

Even if Apple and Amazon stocks were having a better day, the stock market would still look fairly weak. Just over half of S&P 500 stocks were in the red, according to FactSet. 

This comes as the yield curve—the difference in yield between long-dated and short-term debt—declined. The 10-Year Treasury yield slipped to 1.56% from hitting 1.61% earlier. The 2-Year yield held at 0.5%, where it has mostly sat since Tuesday. Higher short-term rates indicate markets anticipate a Federal Reserve rate hike sooner rather than later, which could lower long-term economic demand and inflation. Some on Wall Street have recently flagged the falling yield curve as a potential risk to monitor.

In cryptocurrency markets, Ethereum—the leading crypto asset after Bitcoin—hit an all-time high above $4,400, according to data from CoinDesk.

Here are six stocks on the move Friday:

Chevron

(CVX) gained 0.9% after the company reported a profit of $2.96 a share, beating estimates of $2.21 a share, on sales of $44.7 billion, above expectations for $40.5 billion. 

Starbucks

(SBUX) stock dropped 7.4% after the company reported a profit of $1, beating estimates of 99 cents, on sales of $8.1 billion, below expectations for $8.2 billion. 

Newell Brands

(NWL) stock rose 5.1% after the company reported a profit of 54 cents a share, beating estimates of 50 cents a share, on sales of $2.79 billion, above expectations for $2.78 billion. 

Caterpillar

(CAT) stock rose 0.3% after getting upgraded to Buy from Neutral at UBS. 

Synchrony Financial

(SYF) stock rose 0.3% after getting upgraded to Buy from Neutral at Citigroup. 

U.S. Steel

(X) soared 12% following third-quarter earnings Thursday that smashed expectations and an announcement that the company would raise its dividend.

Write to Jacob Sonenshine at jacob.sonenshine@barrons.com