This program allows you to select which years to use in making the seasonal.

The black line is the seasonal, the gray lines are the seasonal plus or minus one standard deviation and the blue line is the nearest open spread (as you can see in the chart's legend). The standard deviations have been smoothed to remove daily fluctuations.

1. Pick the commodities and the months. The contracts are aligned so that Commodity 1 expires before Commodity 2. For example, if Dec corn versus Mar corn are selected, the following alignment results:

   Dec Corn_1994 / Mar Corn_1995

   Dec Corn_1995 / Mar Corn_1996

   .

   .

   .

   Dec Corn_2003 / Mar Corn_2004

   If the months are switched, a different alignment results:

   Mar Corn_1995 / Dec Corn_1995

   Mar Corn_1996 / Dec Corn_1996

   .

   .

   .

   Mar Corn_2003 / Dec Corn_2003

2. Select the position. If Commodity 1 is long, then Commodity 2 is short, and vice-versa.

3. Select the numbers of contracts.

4. Enter the unit moves if these are different than the contracts you are trading (these inputs display only for intercommodity spreads).

5. Select the chart type. The jpegs are faster; the applets are interactive (zooming in is possible and there are data popups).

6. Select the spreads to include in the seasonal.

   If you want to:	Example:	Using a Mouse and Keyboard:
   Select multiple items which are contiguous (next to each other)...		Hold down the SHIFT key and click on the top and bottom choices of the range of your selection. All choices in between will be selected.
   Select multiple items which are non-contiguous (not next to each other)...		Hold down the CTRL key (COMMAND key for Apple Macintosh) and click on all your selections. Click again to de-select any choice.

7. Press "Get Chart".

This is a limited set of commodities available to nonsubscribers. Subscribers can access data for over 40 commodities.