Modestly negative day to finish the week - Immunity Bio falls over 13%.

There were 18 stocks that lost ground today and eight that went up with one flat. The overall result was an average loss of 1.9%.

Immunity Bio lead the way down with a loss of over 13%. NanoViricides also had a double digit loss of 10%. 

Both PDS and VIB suffered losses of over 5%.

The only one stock to buck the negative trend in a big way was Gritstone, gaining a solid 8%.