 Packers would like to get ahead of the market and improve margins, but must also purchase cattle to supply demand. This requires them to be rather aggressive in the cash market. Some cash activity will likely take place today, as tomorrow is Independence Day. However, most business was done late Friday last week, and this week could be the same. Cattle supplies are tight and will remain that way for quite some time. Consumer demand remains exceptional and is not following the usual decrease in the summer.