CluenexWhat is the FOMC and when does it meet?
The Federal Open Market Committee (FOMC) is the 12-voting-member group that sets the federal funds rate target, the main US short-term interest rate. It holds 8 scheduled meetings a year, and the dates are published in advance on federalreserve.gov.
Most meetings last two days. The policy statement is released at 2:00 PM ET on the second day, and the Fed Chair holds a press conference at 2:30 PM ET. The Fed can also call unscheduled meetings in a crisis, as it did in March 2020.
Four meetings a year (March, June, September and December) also publish the Summary of Economic Projections, which includes the "dot plot." Each dot is one official's anonymous forecast for the future federal funds rate.
What is the pre-FOMC drift?
The pre-FOMC drift is the finding that US stocks have tended to rise in the hours before scheduled FOMC announcements. Lucca and Moench of the New York Fed reported an average excess return of about 49 basis points (0.49%) in the 24 hours before announcements, over 1994 to 2011.
That is an average across many meetings. Some meetings saw stocks fall in that window, and the gap between the average and any single meeting was large.
The cause is debated. Ideas include investors reducing hedges ahead of the news and a general drop in perceived uncertainty. Since the paper was published, a number of studies have found the effect smaller or harder to capture, which is common when a pattern becomes widely known and trading costs are counted.
A 0.49% average gain on a $10,000 position is about $49 before costs and taxes. It is too small and too uneven to build a plan on.
Why is the 2 PM announcement so hard to trade?
The market reacts to the surprise, not to the decision. If futures traders already assigned a 95% chance to a hold, the hold itself contains almost no news.
What can move prices is the wording of the statement, changes in the dot plot, and the Chair's tone. Automated trading systems read the statement and trade within fractions of a second. An individual investor clicking a button cannot compete on speed, and spreads often widen at that moment, which raises trading costs.
How do you know what the market already expects?
The CME Group publishes the FedWatch tool, which converts federal funds futures prices into probabilities for each meeting outcome. If it shows 90% for a hold, the hold is priced in.
The useful question is not "will the Fed cut?" but "is the outcome different from what futures imply?" A 10% outcome happening tends to move markets far more than a 90% outcome happening.
What does the press conference add?
The 2:30 PM press conference often changes the story because the Chair explains the committee's thinking and answers questions on future moves. Markets sometimes reverse the initial 2:00 PM reaction during it.
There is no fixed rule about which direction it goes. Treat the first move as unreliable and the day's close as a better read of what the market took from the news.
What happens to options around FOMC meetings?
Implied volatility is the market's price for expected future swings, built into option prices. It tends to be elevated going into a high-profile event and to fall once the uncertainty is resolved, which traders call volatility crush.
Buying a put or call just before the meeting means paying that elevated price. If the stock then moves only a little, the option can lose value even when the direction was right.
Example with simple numbers: an option bought for $3.00 before the meeting might be worth $2.20 afterward if implied volatility drops and the stock barely moves. That is a loss of $0.80 per share, or $80 per contract (100 shares), with no wrong call on direction. The size of the drop varies by event and market conditions, so check the actual option prices rather than relying on a rule of thumb.
Selling options before an event has the opposite risk: a big surprise can cause losses larger than the premium collected. Options are not suitable for everyone, so read the options disclosure document from the Options Clearing Corporation before trading them.
What does the dot plot change?
The dot plot shows where officials expect rates to be at the end of the next few years. When the median dot moves up, it suggests higher rates for longer. When it moves down, it suggests faster cuts.
The market compares the new dots with what futures already implied. A big gap in either direction is what tends to produce a large reaction, regardless of the actual rate decision that day.
The Fed publishes each projection table on federalreserve.gov, so past dot plots are easy to check against how stocks behaved that day.
When do these patterns fail?
They fail often. Pre-meeting drift is an average over many years, not a rule for next Wednesday. Post-meeting trends depend on whether the news was a true surprise, and surprises are by definition hard to forecast.
Common mistakes:
- Treating a hold as good news. If a hold was expected, it is not news.
- Buying options right before the meeting and ignoring volatility crush.
- Assuming the first move at 2:00 PM is the day's real direction.
- Ignoring other events on the same day, such as inflation or jobs data, that can overwhelm the Fed.
- Counting backtest results without trading costs, taxes and the wider spreads around the announcement.
Cluenex's own work on chart-style patterns found no reliable directional edge in them, which is a useful reminder that a pattern that looks tidy in hindsight may not hold up going forward. The same caution applies to calendar patterns.
What this means for you
For a person with a regular job and a brokerage account, an FOMC meeting is a reason to check, not a reason to trade.
- Look at the meeting date and the FedWatch probabilities so you know what is expected.
- Avoid placing market orders in the minutes around 2:00 PM ET, when spreads can be wide. Limit orders give you control over price.
- Do not buy short-dated options on the day before a meeting without understanding volatility crush.
- If your portfolio would be hurt by one Fed decision, the issue is the size of your position, not the timing. Review position sizing and diversification.
- Keep regular contributions on schedule. Dollar-cost averaging does not require predicting any single meeting.
For the bigger picture of how rates feed into share prices, see how Fed rate decisions affect stock prices.