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Market warning

Everyone’s talking about a crash. Almost nobody has a plan. Here are the 3 questions to answer this week.

Fear is back, and the Fed decides in 9 days. A crash call is a guess. A plan is three answers: what kind of market this is, how exposed you are, and what you’ll do if it turns.

David | Senior Analyst @ Exent Research Desk5 min read

The S&P 500 since 1999: three falls that started as a dip

Shaded: from the record close to the lowest close that followed. Log scale, so equal drops look equal.

−49%2000–02−20%2018−25%2022Now ???Record, Oct 6, 2026
+21%The VIX fear gauge, in one dayTo 20.0 on Oct 16
−4.5%The Nasdaq this weekIts worst week since June
−2.0%The S&P 500 from its recordRecord Oct 6, close Oct 16
≈45%Of the S&P 500 rides on AIGoldman Sachs count; about half by ours

Ten days after the S&P 500 set a record, fear came back fast. On Friday, October 16, the VIX, Wall Street's fear gauge, jumped 21% in a day to 20. The Nasdaq ended its worst week since June. The crash headlines followed.

Most of those headlines make a call. A crash call is a guess: it needs the timing right, and nobody knows the timing. A plan works either way. It comes down to three answers, and the week of the Fed is the time to have them.

Question 1 of 3

Is today Risk ON or Risk OFF?

A market regime is the kind of market you are in. It is not a forecast for next week. It is a read on the conditions under the prices today.

In a Risk ON market, money is flowing into stocks, borrowing is easy and dips tend to get bought. In a Risk OFF market, money is pulling back, credit gets tight and dips tend to run deeper and last longer. The same 2% drop means something different in each.

In a Risk ON market

Money is flowing, credit is calm, the trend is up

  • A dip is more likely to be just a dip
  • Selling into it can lock in the loss
  • Investors stay invested and keep their core

In a Risk OFF market

Money is leaving, credit is cracking, the trend has turned

  • A dip can turn into a long fall, like 2000–02 or 2022
  • Investors cut what is most exposed
  • They keep cash ready to buy back lower

Look again at the chart at the top. Each of those three falls began at a record, and in the first weeks each looked like an ordinary dip. The S&P 500 went on to fall 49%, 20% and 25%.

That is why question 1 comes first. It is also the one most investors only answer in hindsight, after the damage is done.

Question 2 of 3

How exposed am I?

The S&P 500 weights each company by its size, so the biggest companies move it most. As of October 16, the ten biggest positions in the largest S&P 500 fund were all AI-linked companies, and together they were 38.5% of it.

Add the chipmakers, data-center builders and AI software firms further down the list, and the AI share is about 45% by Goldman Sachs' count and about half by ours. That exposure is easy to miss, because much of it sits inside funds. An investor who holds an S&P 500 fund and a few AI stocks can own the same companies twice.

How much of the S&P 500 rides on AI

Share of the index's value, Oct 16

  • The 10 biggest companies, all AI-linked38.5%
  • AI-linked, Goldman Sachs count≈45%
  • AI-linked, Exent count≈51%
  • Everything else, Exent count≈49%

Where AI exposure hides

Three places to look, in stocks and in funds

  • Stocks held directly: the AI companies in a portfolio
  • Index funds: about half of an S&P 500 fund rides on AI, 38.5% in its top 10 alone
  • Overlap: the same company held twice, once directly and once inside a fund

The week of October 12–16 showed what that means. The tech-heavy Nasdaq fell 4.5%. The Dow rose 0.7%. Same market, same week, very different results, depending on how much AI each one held.

Question 3 of 3

What will I do if it turns?

This is the answer most plans skip. A rule written down on a calm day is easier to follow on a scary one. Here are three simple rules many investors use, and how each one reads in a Risk ON week and in a Risk OFF week.

Hold the core

Long-term holdings, kept through the noise

Risk ON week
Hold
Risk OFF week
Hold

Trim concentration

A limit per stock or theme, set in advance

Risk ON week
Let it run to the limit
Risk OFF week
Trim back to the limit

Keep cash ready

Money set aside to buy at lower prices

Risk ON week
Use it on dips
Risk OFF week
Hold it for lower prices

The rules are the easy part. The hard part is knowing which week this is. That is question 1 again, and the answer can change within days.

General education on how investors plan, not advice for any one portfolio.

The week of the Fed: the dates to plan around.

  1. Oct 27

    Durable goods orders, new home sales and consumer confidence

  2. Oct 28

    Fed rate decision at 2 p.m. ET, then the press conference

  3. Oct 29

    Q3 GDP and September inflation (PCE)

  4. Late October

    Microsoft, Alphabet, Meta, Apple and Amazon earnings (expected)

  5. Nov 3

    US midterm elections

Before October 28

Three answers, written down

  • Question 1: is today Risk ON or Risk OFF? Check it again after the Fed
  • Question 2: add up the AI share, in stocks and in funds
  • Question 3: one rule each for the core, the biggest bets and the cash
  • Check all three again after Big Tech earnings

What a plan is not.

Everyone says a crash is coming. Shouldn’t I just sell?

A crash call is a guess about timing, and timing is the one part nobody knows.

Selling everything is a plan too, just a risky one. If the market is still Risk ON, selling into a dip can lock in the loss and miss the rebound.

Isn’t it safer to wait until things calm down?

Waiting is also a decision, with its own risk. By the time things feel calm, prices have usually moved.

A plan decides in advance what would change the answer, so the decision isn’t made on the scariest day.

How would I know if the market turns?

Not from one headline, and not from the index itself. It is usually the last place a turn shows up.

That is what a daily Risk ON / Risk OFF read is for: one answer every morning, before the market makes it obvious.

Risk ONRisk OFF

Fear without a plan is panic. Market Intelligence gives the plan its missing input every morning.

Risk ON or Risk OFF, what changed and what it means, plus exposure guidance.

Current regime

Updated every morning

Live
Today: members only
Risk ON or OFF???.?
Risk OFFNRisk ON
Illustrative only. Not real data.
  • Liquidity??.?

    How much money is moving through the financial system — the fuel behind every rally.

  • Capital Stress??.?

    Early-warning signs from credit markets — where trouble shows up before it reaches stocks.

  • Cycle??.?

    Where the economy sits in its cycle — growth, inflation and interest-rate momentum.

  • Sentiment??.?

    How fearful or greedy investors are — the extremes that mark tops and bottoms.

What you get

  • A daily Risk ON / Risk OFF call on the S&P 500
  • When to hold and when to step aside, in plain words
  • Daily macro briefings: rates, inflation, oil and the AI trade
  • Exposure guidance for Risk ON and Risk OFF markets
  • Built from millions of macro data points

Built on institutional‑grade data and leading AI.

The same data sources and models the big desks use, read for you every morning.

  • TradingView
  • FRED
  • Morgan Stanley
  • Goldman Sachs
Exent
  • Claude
  • OpenAI
  • BIS
  • SEC

As seen on Yahoo Finance.

S&P 500 vs Exent Regime performance comparison chart from the article

“Exent AI Beat S&P 500 by 10x Over 8 Years”

Yahoo Finance · June 2, 2026

An eight-year performance analysis of Exent AI’s market regime signal against the S&P 500, as published on Yahoo Finance.

Read full article

Backtested results, as published. Past performance does not predict future returns.

Sources

Advertorial, presented by Exent. This article is for information and education only and is not investment advice, a recommendation to buy or sell any security, or a forecast. Market data is as of the dates shown and changes daily. Past market episodes are shown for context; history does not predict future returns. Investing involves risk, including the possible loss of principal. Exent AI is an informational research platform and is not an investment adviser, broker-dealer or fiduciary.