From Quantifiable Edge:
The pre-market indications are for a gap down of about 1% as I write this around 8:20am EST. With tomorrow being a Fed Day I decided to see how the market has performed other times it has seen large gaps down on the day prior to a Fed Day. This first study looks at performance from open to close on the day of the gap down.
Note that the only instance that did NOT gap down at least 1% was the last one on 12/12/11. Instances are low. Initial returns are mixed with a mild bearish tilt.
Now let’s see what happens if we hold through the Fed Day....MORE