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Daily Market Brief · Market · 2026-10-09

Market brief, October 9: S&P 500 rises 0.6% as telecom tower reits stocks rally

The S&P 500 rose 0.6% on Friday. Elsewhere, the Nasdaq-100 rose 0.5%, the Dow rose 0.9% and the Russell 2000 (small caps) rose 0.5%. The average S&P 500 stock rose 0.6%, in step with the index.

Telecom tower reits stocks rallied together (median +9.3%): Crown Castle +15.6%, American Tower +9.3%, SBA Communications +7.4%. MarketWatch reported “Dow rallies 269 points on gains for shares of Amazon.com Inc., Cisco”1.

Microsoft (+2.4%) added the most, about 0.1 of a percentage point, followed by Amazon (+3.3%), Alphabet (+1.0%). Those three account for about 53% of the index's move. Working the other way: Apple (-1.3%), T-Mobile US (-13.3%), Nvidia (-0.4%).

Breadth: 309 S&P 500 stocks rose and 188 fell; 15 set a 52-week high and 7 a 52-week low.

Torvanta's read: The S&P 500 is in a calm uptrend, above its 200-day average, and the engine's correction-risk gauge reads low. The index trades at 23.5 times trailing earnings; its earnings yield is 0.9 points below the 10-year Treasury.

Biggest S&P 500 movers and why

Crown Castle (CCI)
The biggest one-day gain in at least 10 years of data; down 7% this year; 15% below its 52-week high. Next report: Oct 21.
+15.6%
Moderna (MRNA)
Next report: Oct 29.
+14.0%
Humana (HUM)
As Barron's reported “Humana Stock Surges After Key Medicare Advantage Plan Gets Higher Rating”2. The biggest one-day gain since July 30, 2025; up 70% this year; at a 52-week high. Next report: Nov 6.
+11.3%
American Tower (AMT)
The biggest one-day gain since November 10, 2022; up 7% this year; 4% below its 52-week high. Next report: Oct 22.
+9.3%
SBA Communications (SBAC)
The biggest one-day gain since April 2, 2026; down 4% this year; 17% below its 52-week high. Next report: Nov 2.
+7.4%
T-Mobile US (TMUS)
After merger and acquisition news3. The biggest one-day drop in at least 10 years of data; down 25% this year; 34% below its 52-week high. Next report: Oct 21.
-13.3%
AT&T (T)
After merger and acquisition news3. The biggest one-day drop in at least 10 years of data; down 8% this year; 22% below its 52-week high. Next report: Oct 21.
-10.9%
Verizon (VZ)
After merger and acquisition news3. The biggest one-day drop in at least 10 years of data; up 8% this year; 19% below its 52-week high. Next report: Oct 20.
-9.8%
HP (HPQ)
The biggest one-day drop since June 2, 2026; up 41% this year; 15% below its 52-week high. Next report: Nov 23.
-6.9%
Charter Communications (CHTR)
Down 50% this year; 61% below its 52-week high. Next report: Oct 29.
-5.8%

Key numbers

MarketCloseDayYear to date
S&P 500 (SPY)778.6+0.6%+15.1%
Nasdaq-100 (QQQ)751.3+0.5%+22.7%
Dow (DIA)516.1+0.9%+8.6%
Russell 2000 (small caps) (IWM)278.9+0.5%+14.1%
Average S&P 500 stock (equal weight) (RSP)213.0+0.6%+12.5%
10-year Treasury yield (as of Oct 8)5.2%-6 bp+104 bp
2-year Treasury yield (as of Oct 8)4.8%-2 bp+128 bp
VIX (expected volatility) (as of Oct 8)15.4+0.3+0.5
Oil (WTI, $ per barrel) (as of Oct 6)96.2+0.1+39.0

Indexes are tracked by their exchange-traded funds. Rates, volatility and oil are the latest daily readings from the Federal Reserve Bank of St. Louis (FRED).

On deck: S&P 500 companies reporting Monday, October 12

CompanySectorWhen
FedEx (FDX)IndustrialsAfter the close

What this means

Three months: the S&P 500 against its average stock
-2%+0%+2%S&P 500 +4%Avg stock +0%Jul 13Oct 9

A narrow market: the S&P 500 weights companies by size, so a few giants move it, while the average stock is the plain mean of all 500. Over these three months the 10 largest companies account for about 81% of the index's gain. Biggest contributors: Microsoft, Nvidia, Apple Inc., Palantir Technologies, Amazon.

Today by sector (median stock)
Health Care+1.2%Real Estate+0.8%Info. Technology+0.8%Utilities+0.4%Industrials+0.4%Cons. Discretionary+0.2%Cons. Staples+0.0%Energy-0.1%Financials-0.1%Materials-0.4%Comm. Services-0.6%

Headlines that mattered

Sources

  1. MarketWatch, Oct 9, 2026: Dow rallies 269 points on gains for shares of Amazon.com Inc., Cisco
  2. Barron's, Oct 9, 2026: Humana Stock Surges After Key Medicare Advantage Plan Gets Higher Rating
  3. CNBC, Oct 8, 2026: SpaceX deal to acquire spectrum license hammers shares of AT&T, Verizon and T-Mobile
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