I call the "Earnings Report" levels "KEY LEVELS".
The summation of every DJIA stock is represented by each data point listed here and has been useful for defining important for the overall market.
If the market is above the KEY LEVEL, look for support when it falls to the KEY LEVEL. If the market is below the KEY LEVEL, look for resistance when the market rises to the KEY LEVEL.
For today, the level is 7 points under the close of May 4. 17644.
The number wont change until the next company reports .
8:31AM 5/5/2016 17651 DJIA