Buy the Rumor, Sell the News?
September 8, 2025
The Federal Reserve is meeting this week. A rate cut is almost a certainty—market-implied odds are around 92% for three cuts by year-end. The only real question is how many cuts we’ll actually see.
Now, we can debate whether these cuts are warranted. After all, the S&P 500 is at all-time highs, junk bonds are at all-time highs, semiconductors are at all-time highs… you get the point. I’ve written about all of these in past notes.
Given this backdrop, you must ask yourself: What would surprise the market?
I could venture a few guesses, but that’s not what we do here. The data and the trends will answer that question for us. If you want to pin me down, the biggest surprise would be fewer than three cuts by December.
Rates
Interest rates are falling across the curve—from 2s to 30s. The recent trend is clearly to the downside. In other words, there’s little reason to believe we won’t see a cut this week.

Source: Optuma
Inflation Expectations
In past notes, we’ve discussed how the 2-Year Yield has been trading well below the Effective Fed Funds Rate, giving the Fed “air cover” to cut. Additional cover comes from inflation expectations. The ratio of the iShares 0–5 Year TIPS Bond ETF (STIP) to the iShares Core U.S. Aggregate Bond ETF (AGG) has broken lower after failing to make a new high in May. In short, investors are becoming less concerned about inflation.

Source: Optuma
S&P 500
For the fifth time in six weeks, the S&P 500 closed higher—well above the rising 60-day moving average and the key 6,100 level. Note the use of the word “well.” The current 60-week Z-score for the index is 2.099, meaning the S&P 500 is more than two standard deviations above our preferred measure of long-term trend.
Is this a signal? Not on its own. But it’s interesting as we move into a “Fed Week.”

Source: Optuma
Final Thoughts
Stocks are strong—there’s no arguing that. The Fed is expected to cut this week, and likely two more times before year-end. So, where’s the surprise? That’s the real question.
Will this be a textbook case of “buy the rumor, sell the news”? We’ll find out soon enough.
Dan Russo, CMT
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