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Weekly NewsletterSeptember 21, 2026

This Week on Wall Street – Week of September 21st

The meetings that matter most this week are diplomatic. The General Debate of the United Nations General Assembly convenes Tuesday in New York, with the war between the United States and Iran and the regional proxies it has drawn in dominating the agenda.

This Week on Wall Street – Week of September 21st
This Week on Wall Street
 
This Week on Wall Street
Week of September 21, 2026
The meetings that matter most this week are diplomatic. The General Debate of the United Nations General Assembly convenes Tuesday in New York, with the war between the United States and Iran and the regional proxies it has drawn in dominating the agenda. Crude has spent four sessions giving back risk premium on expectations that a path toward de-escalation surfaces during high-level week, with Brent slipping toward $100 after trading above $105 earlier this month. The counterweight arrived over the weekend, when Saudi Arabia issued air-raid alerts for Riyadh for the first time since the spring, along with warnings for Red Sea port hubs. The Strait of Hormuz remains effectively shut either way, so the physical supply constraint does not turn on the tone of the talks. President Trump hosts Xi Jinping in Washington on Thursday, their second meeting this year, with the governance of artificial intelligence expected to sit alongside trade on the agenda. Neither event produces a figure markets can price, and both can set the direction for the week.
The question in the rates market is no longer whether policy tightens but how quickly. The Fed lifted its target range a quarter point last week, and the projections released alongside the decision did more work than the decision itself, with nearly every participant now penciling in at least one further increase before year end. The repricing that followed concentrated in short maturities, where the policy signal lives, while the ten-year held right around 5%. The gap between two-year and ten-year yields has narrowed accordingly. What the market does not yet have is evidence on how the economy absorbs a higher cost of money, and this week offers only glancing looks at it. Thursday brings jobless claims, which have stayed low without much hiring behind them. Friday brings the final September read on consumer sentiment, where the preliminary survey showed year-ahead inflation expectations moving higher. Expectations tend to feed into wage and pricing behavior over time, so a confirmation there would read as more than a sentiment wobble.
Underneath the rates story sits a market that has barely moved. The extra yield investors require to hold speculative-grade corporate debt rather than Treasuries stood near 2.8 percentage points in mid-September, against a long-run median closer to 4.5. Credit has held near the tight end of its range through an oil shock, a closed shipping chokepoint and the opening of a tightening cycle. Some of that is arithmetic, since all-in borrowing costs have risen with government yields even with the risk premium unchanged. Some of it is demand, with investors still willing to fund below-investment-grade issuers at slim concessions. The reason it matters is transmission. Policy is meant to work partly by making credit dearer and harder to come by, and spreads this narrow suggest that channel is not yet carrying much of the load, a point Fed officials have made in describing financial conditions as loose. Credit has also tended to move ahead of equities, which makes it a useful place to watch for a first sign that higher rates are biting.
S&P 500 Performance at the Start of a Tightening Cycle
Grouped bar chart of S and P 500 price return after the initial rate hike of each Federal Reserve tightening cycle since 1994, showing declines in the first three months in five of six cycles and gains twelve months out in five of six
Across the six cycles since 1994, the index was lower one month after the first hike in five of six cases, and still lower three months in. Five of the six were higher at the one-year mark, with 1997 the outlier on the upside and 2022 the only cycle negative a year out. Values are read from the published series and are approximate.
Source: LPL Financial, via The Daily Shot
Economic Releases This Week
MondayNone
TuesdayNone
WednesdayManufacturing and Services PMI (Flash)
ThursdayInitial Jobless Claims, New Home Sales
FridayConsumer Sentiment (Final)
Stories to Start the Week
Policy
Trump vows to create ‘AI Force’ and appoint czar amid calls to regulate technology's development
as calls grow to regulate how the technology develops
Technology
Meta's AI Agent Has a Trust Problem
a look at where user trust in the agent falls short
Company
Paramount Settles States' Antitrust Suit, Clearing Way for Warner Megadeal
with the state suits resolved, the path to the Warner deal opens
Energy
A Safer Way to Bet on Nuclear
on lower-risk approaches to nuclear power exposure
Real Estate
Apartment Landlords Have a $2 Trillion Debt Problem That Is Only Getting Worse
on the scale of the debt load facing apartment owners
What is Newton?
Our Newton model determines the highest probability of future price direction using advanced algorithmic and high-order mathematical techniques on the current market environment. It scores securities over multiple time periods on a 0–20 scale (0 worst, 20 best). Trend and level both matter. A name moving from 18 to 16 still signals a strong level, with slight exhaustion in the trend.
0–8 declining    9–13 neutral    14–20 strong
EquitiesTrendThis WkLast Wk
Large Cap1413
Emerging Markets1211
Mid Cap1013
Small Cap88
Foreign Developed79
Fixed IncomeTrendThis WkLast Wk
Floating Rate Bond128
Long-Term Bond94
High Yield Bond85
Corporate Bond76
Short Term Bond74
Intermediate Term Bond74
SectorsTrendThis WkLast Wk
Communications1414
Health Care135
Technology1211
Materials117
Consumer Cyclical910
Consumer Defensive84
Financials712
Real Estate76
Industrials56
Energy49
Utilities06
Market SegmentsTrendThis WkLast Wk
Large Growth1413
Large Value99
Small Growth810
Mid-Cap Growth79
Small Value611
Mid-Cap Value68
Notable Newton Moves This Week: Readings improved at the top of the equity table, with Large Cap and Large Growth both moving into the strong band at 14. Fixed income firmed from low levels across the board, Floating Rate Bond to 12 from 8 and Long-Term Bond to 9 from 4, though four of the six categories remain in the declining band. Health Care was the largest single move anywhere in the model, jumping to 13 from 5, with Materials also up to 11 from 7. The declines were concentrated in rate-sensitive and cyclical reads, Utilities falling to 0 from 6, Financials to 7 from 12 and Energy to 4 from 9, while Small Value slid to 6 from 11.
Technical trading models are mathematically driven based upon historical data and trends of domestic and foreign market trading activity, including various industry and sector trading statistics within such markets. Technical trading models, through mathematical algorithms, attempt to identify when markets are likely to increase or decrease and identify appropriate entry and exit points. The primary risk of technical trading models is that historical trends and past performance cannot predict future trends and there is no assurance that the mathematical algorithms employed are designed properly, updated with new data, and can accurately predict future market, industry and sector performance.

Disclosure: Investing involves risk, including the possible loss of principal and fluctuation of value. Past performance is no guarantee of future results. This newsletter is not intended to be relied upon as forecast, research or investment advice, and is not a recommendation, offer or solicitation to buy or sell any securities or to adopt any investment strategy. The opinions expressed are as of the date noted and may change as subsequent conditions vary. The information and opinions contained in this letter are derived from proprietary and nonproprietary sources deemed by Waterloo Capital to be reliable. The letter may contain "forward-looking" information that is not purely historical in nature. Such information may include, among other things, projections and forecasts. There is no guarantee that any forecast made will materialize. Reliance upon information in this letter is at sole discretion of the reader. Please consult with a Waterloo Capital financial advisor to ensure that any contemplated transaction in any securities or investment strategy mentioned in this newsletter aligns with your overall investment goals, objectives and tolerance for risk. Additional information about Waterloo Capital is available in its current disclosure documents, Form ADV, Form ADV Part 2A Brochure, and Client Relationship Summary report which are accessible online via the SEC's Investment Adviser Public Disclosure (IAPD) database at www.adviserinfo.sec.gov, using SEC # 133705. Waterloo Capital is neither an attorney nor an accountant, and no portion of this content should be interpreted as legal, accounting or tax advice.
About This Series

Last Week on Wall Street

Last Week on Wall Street is Waterloo Capital's weekly market recap, published every Monday morning to keep advisors and clients informed on the most significant developments from the prior trading week. Each edition synthesizes equity market performance, fixed income moves, macroeconomic data releases, and notable corporate earnings into a concise, actionable read — cutting through the noise so our readers can focus on what actually matters for long-term wealth management.

Our research team tracks the S&P 500, Dow Jones Industrial Average, NASDAQ Composite, and 10-year Treasury yield as primary benchmarks, while also covering sector rotations, commodity swings, and policy shifts from the Federal Reserve and Washington. When major cross-asset moves occur — such as the historic gold selloff covered in this edition — we dig into the mechanics and the likely ripple effects on diversified portfolios, helping clients contextualize volatility without reacting impulsively.

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Waterloo Capital's investment research is grounded in fundamental analysis and long-term thinking. We believe that disciplined, evidence-based investing — anchored in each client's specific goals, risk tolerance, and time horizon — consistently outperforms reactive decision-making driven by short-term headlines. Our weekly commentary is designed to inform, not alarm: we put market moves in their proper historical context so that clients can hold conviction in their financial plans through periods of uncertainty.

As an SEC-registered investment advisor headquartered in Austin, Texas, with offices across the Southwest and Southeast, Waterloo Capital serves high-net-worth individuals, families, and institutions. Our advisors use proprietary research like this weekly recap as one input among many — alongside in-depth portfolio reviews, tax planning, and estate strategy — to deliver comprehensive wealth management tailored to each client relationship. To learn more about how our investment philosophy and ongoing market research can serve your financial future, contact our team directly.

Investment Disclosure: The information contained in this article is provided for informational and educational purposes only and does not constitute investment advice, a recommendation, or an offer or solicitation to buy or sell any security. Past performance is not indicative of future results. All investing involves risk, including the possible loss of principal. Waterloo Capital, LP is an SEC-registered investment advisor. Registration does not imply a certain level of skill or training. Please consult with a qualified financial professional before making any investment decisions.

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