Daily Brief
As of Thursday, Aug 20 close

Friday, August 21, 2026

S&P 500 -0.84%Nasdaq -0.72%Our 523 -1.21% · 127 up, 390 down

LayersOther -7.2%Power Generation -4.1%Power Systems -3.5%Cooling -1.7%Construction -1.6%Servers & Compute -1.2%Services & Investment -1.1%Silicon Design -1.0%Networking -0.9%Utilities & Energy -0.6%Natural Resources -0.6%Chip Making -0.6%Software & Design -0.1%Operators +2.0%

MoversMARA +15.5%BTBT +13.9%HIVE +11.0%·GWH -42.9%NLST -13.1%AMRC -12.5%
← Back to latest brief

Written before the market opens. Every price and move in this brief is as of the close on Thursday, Aug 20; company pages show live prices. The Buildout is a website built on agentic AI tools, currently in beta, and could have factual errors.

The tape

Equities were lower Thursday — SPY closed at $762.60, down 0.84%, and QQQ closed at $710.93, down 0.72%. Our 523-stock AI infrastructure universe underperformed modestly, averaging a 1.21% decline with 390 names lower, 127 higher, and 6 flat. Operators led at +1.96%; the two-stock Other segment lagged at -7.21%, followed by Power Generation at -4.07%. MARA (Marathon Digital Holdings, Inc.) was the standout, up 15.5%, while GWH (ESS Tech, Inc.) fell 42.9% to pace decliners. Today's calendar: SHMD (SCHMID Group N.V. Class A Ordinary Shares) reports. Next week, NVDA (NVIDIA Corporation) and SNPS (Synopsys, Inc.) headline Wednesday's slate, joined by DY (Dycom Industries, Inc.) and PLAB (Photronics, Inc.); IREN (IREN Limited), CSIQ (Canadian Solar Inc.), and MRVL (Marvell Technology, Inc.) report Thursday.

What's happening

Zayo signed a long-term fiber supply agreement with Corning. GLW (Corning Inc) and Zayo said the agreement is tied to AI infrastructure demand. The deal locks in optical fiber supply for Zayo as network operators and data center builders expand high-capacity connectivity; it is a direct signal that fiber procurement remains a priority in the AI buildout.

Brookfield Renewable plans C$750 million of green bond issuance. BEP (Brookfield Renewable Partners L.P.) said it will issue C$750 million of green bonds. The capital raise supports the company's renewable development pipeline and provides another funding indicator for clean power capacity additions in North American infrastructure markets.

Supply chain read-through · News
The Zayo-Corning long-term fiber supply agreement points to sustained optical buildouts for AI connectivity. Optical component and connectivity specialists such as LITE (Lumentum Holdings Inc.) and CLFD (Clearfield, Inc.) could see follow-on demand as carriers and data center operators lock in fiber supply.
Brookfield Renewable's green bond raise could support renewable capacity additions, which in turn may benefit grid equipment and power infrastructure names such as GEV (GE Vernova Inc.) and ETN (Eaton Corporation plc).
On watch

SHMD reports today with no consensus estimate in our system. The print is a current-quarter datapoint for the company; we will review the filing for any backlog, order, or AI-infrastructure commentary.

CHRN (ChronoScale Corporation) reports Monday with consensus EPS of -$0.0626. The print is a current-quarter datapoint for the company; we will review the filing for any forward-looking commentary.

NVDA reports Wednesday with consensus EPS of $2.09. This is a central AI silicon datapoint — data center GPU demand, advanced packaging and HBM availability, and forward order commentary will matter across chipmaking, memory, and networking names. SNPS also reports Wednesday; consensus EPS is $3.67. As an EDA vendor, Synopsys gives a read on design activity for AI accelerators, custom silicon, and advanced packaging.

IREN reports Thursday with consensus EPS of -$0.55401. The operator's update on data center capacity, power purchase agreements, and AI cloud services will be a read on the operator segment. CSIQ also reports Thursday with consensus EPS of -$1.01, and MRVL reports Thursday with consensus EPS of $0.931; Marvell will be watched for data-center networking and custom silicon commentary.

DY reports Wednesday with consensus EPS of $4.70, PLAB reports Wednesday with consensus EPS of $0.4033, and P (Everpure, Inc.) reports Wednesday with consensus EPS of $0.58. Dycom is a direct read on fiber and network construction; Photronics offers a photomask demand signal; and P is a smaller-cap print we will monitor for any AI-infrastructure commentary.

Go to our Earnings Hub for full coverage and previews
The week ahead

S&P Global Composite PMI (Aug) leads the macro calendar this week.

Macro calendar
Fri 21
S&P Global Composite PMI (Aug)
S&P Global Services PMI (Aug)
S&P Global Manufacturing PMI (Aug)
Mon 24
Chicago Fed National Activity Index (Jul)
Tue 25
Fed Barkin Speech
S&P/Case-Shiller Home Price YoY (Jun)
New Home Sales (Jul)
CB Consumer Confidence (Aug)
API Crude Oil Stock Change (Aug/21)
Wed 26
MBA 30-Year Mortgage Rate (Aug/21)
Personal Income MoM (Jul)
Corporate Profits QoQ (Q2)
Durable Goods Orders Ex Transp MoM (Jul)
Durable Goods Orders MoM (Jul)
PCE Price Index YoY (Jul)
Core PCE Price Index MoM (Jul)
PCE Price Index MoM (Jul)
EIA Crude Oil Stocks Change (Aug/21)
EIA Gasoline Stocks Change (Aug/21)