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Buy the Dip or Brace for a Selloff? Wall Street Can't Agree

By Daniel Hartley · August 21, 2026 · 9 min read

On August 21, three of Wall Street's biggest voices split hard on where the S&P 500 goes next: HSBC's Max Kettner and BofA's Michael Hartnett flagged slowing US growth and Treasury yield risk, while Citi told clients to buy the dip. This post breaks down the mixed views and shows how to track your own portfolio against the benchmark so you can act on data instead of headlines.

Why is Wall Street split on the S&P 500 right now?

Wall Street is split because analysts are weighing the same data and reaching opposite conclusions about growth versus valuation. On August 21, HSBC's Max Kettner and BofA's Michael Hartnett warned that decelerating US growth could pressure risk assets, while Citi argued that any pullback in the S&P 500 is a buying opportunity.

These are not contradictory facts. They are different time horizons and different risk tolerances applied to the same market. Understanding each camp's logic helps you decide which lines up with your own plan.

What did HSBC and BofA actually warn about?

HSBC's Max Kettner and BofA's Michael Hartnett warned that two forces could pressure risk assets into the fall: cooling US economic momentum and the risk that the Treasury's plan to hold down long-term yields fails to work as intended.

The growth slowdown angle

The growth concern is that a softer labor market and slowing consumer spending eventually hit corporate earnings. If earnings growth stalls while the S&P 500 trades near record valuations, the math gets uncomfortable. Hartnett has a long history of flagging crowded positioning as a contrarian risk.

The Treasury long-yield problem

The second warning is about Treasury yields. If the Treasury cannot keep long-end yields contained, borrowing costs across the economy rise. Higher long yields compress the multiple investors are willing to pay for stocks, and that pressure hits growth names hardest. We covered the mechanics of Treasury buybacks and their ripple effects in our breakdown of why Treasury buybacks move gold and Bitcoin.

What is Citi's case for buying the dip?

Citi's case is that a resilient economy and healthy earnings make any S&P 500 pullback a chance to add exposure rather than reduce it. The bank's logic leans on historical base rates: dips inside an uptrend have more often than not been followed by new highs.

The buy the dip thesis rests on a few pillars:

The risk with buying the dip is timing. Without a defined level and a plan, "buy the dip" quietly becomes "catch the falling knife." That is where tracking your own numbers against the benchmark matters more than any forecast.

How do you reconcile these mixed Wall Street views?

You reconcile mixed views by ignoring the verdict and copying the discipline: define your levels in advance, then react to what the market actually does. Forecasts from HSBC, BofA and Citi are inputs, not instructions.

A practical framework for a split-opinion market:

  1. Know your benchmark gap. Measure how your portfolio moves relative to the S&P 500 so you know if you are more or less volatile than the index.
  2. Set your own levels. Decide the prices where you would add, trim, or protect, before emotion enters.
  3. Automate the watching. Let alerts monitor those levels so you are not glued to a screen through midterm headline swings.
  4. Separate signal from noise. A single strategist call is noise until price confirms it.

If you are using PortfolioTrackr, you can benchmark your total portfolio against the S&P 500 directly and see your relative performance across every holding, whether those positions are in US stocks, crypto, or UAE markets like the Abu Dhabi Securities Exchange and Dubai Financial Market.

How to track your portfolio against the S&P 500 benchmark

Track your portfolio against the S&P 500 by comparing your total return and volatility to the index over the same period, so you can tell skill from beta. A portfolio tracker is software that consolidates your holdings across accounts and shows performance, allocation, and benchmark comparison in one place.

What benchmarking actually tells you

Benchmarking answers three questions a broker app usually cannot:

This is exactly where consolidated tracking beats a manual sheet. We walk through the tradeoffs in our comparison of a portfolio tracker versus a spreadsheet, and the short version is that live benchmarking is painful to maintain by hand.

Connecting accounts is optional

You do not need to link a brokerage to benchmark your portfolio. PortfolioTrackr supports manual entry, voice, text, CSV import, and broker screenshots on every plan. If you do want automatic syncing, it connects through 95 stock exchanges, 67 currencies, and 35 brokers via the SnapTrade bridge, plus direct integrations with Alpaca, Bybit, and Interactive Brokers. Our guide to connecting a brokerage account to a portfolio tracker covers the setup.

How to set volatility alerts for a choppy market

Set volatility alerts by choosing the price levels that matter to your plan and letting the tracker watch them for you through market hours. In PortfolioTrackr, prices are monitored continuously through the trading session, and an alert fires as soon as your level is reached.

Alerts report status against your own levels. They do not give advice. You will see messages like these:

The point is to remove the emotion. When Hartnett publishes a bearish note or Citi says buy, your levels are already defined, and the alert simply tells you the market touched one.

ViewFirmCore worry or thesisWhat to watch
CautiousHSBC (Kettner)Slowing US growthEarnings revisions
CautiousBofA (Hartnett)Treasury long-yield risk10-year yield trend
ConstructiveCitiBuy the dip in S&P 500Support levels holding

What role do the November midterms play?

The November midterms add a layer of headline volatility, but history suggests markets often stabilize once election uncertainty clears. Election years historically bring choppier trading in the months before the vote as policy outcomes stay unresolved.

For a multi-asset investor, the midterm angle matters less than positioning. A few practical notes:

If you hold names driven by specific catalysts rather than the macro, benchmark drift can mislead you. Our look at how insider buying and selling signals work is a reminder that stock-specific data often matters more than the index tape.

The bottom line

The bottom line is that HSBC, BofA and Citi cannot agree on the S&P 500, and you should not wait for them to. The cautious camp is right that slowing growth and Treasury yield risk are real, and the constructive camp is right that dips have historically rewarded buyers.

Your edge is not picking the winning forecast. It is defining your own levels, benchmarking honestly against the S&P 500, and letting alerts do the watching so you respond to price instead of headlines. PortfolioTrackr is built for exactly that kind of prepared, unemotional tracking across stocks, crypto, and UAE markets.

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Frequently asked questions

Should I buy the dip in the S&P 500 right now?

That depends on your plan, not on any single forecast. Citi favors buying dips while HSBC and BofA warn on growth and yields. The disciplined approach is to define your entry levels in advance and let alerts tell you when price reaches them, rather than reacting to headlines.

How do I compare my portfolio to the S&P 500?

Compare your total return and volatility to the index over the same period using a portfolio tracker. PortfolioTrackr benchmarks your entire portfolio against the S&P 500 directly, showing relative performance across US stocks, crypto, and UAE markets so you can tell skill from broad market movement.

What are Michael Hartnett and Max Kettner warning about?

On August 21, BofA's Michael Hartnett and HSBC's Max Kettner warned that slowing US growth and a possible failure of the Treasury's plan to contain long-term yields could pressure risk assets into the November midterms. Higher long yields compress equity valuations, hitting growth stocks hardest.

How do volatility alerts work in a portfolio tracker?

Volatility alerts monitor your chosen price levels and notify you when they are reached. In PortfolioTrackr, prices are watched continuously through market hours and the alert fires as soon as a level is hit. Alerts report status against your own levels and do not give buy or sell advice.

Do I need to connect my broker to track against a benchmark?

No, connecting a broker is optional. PortfolioTrackr supports manual entry, voice, text, CSV import, and broker screenshots on every plan. You can benchmark against the S&P 500 without linking any account, and add automatic syncing later through SnapTrade or direct broker integrations if you want it.

Daniel Hartley
Daniel Hartley writes about the fundamentals of portfolio tracking at PortfolioTrackr: profit and loss, position sizing, and turning a messy multi-broker setup into one clear picture for everyday investors.