Portfolio standard deviation

Mistake here. Look to this
Today we calculated our portfolio standart deviation using historical data. Our result - 30%. Wide market deviation - 64%. So we can say that our portfolio is less risky than S&P Index fund investments. By the way yesterday we saw good earnings from Oracle. Thats a good sign for our technology stakes. Our technology stakes export a lot of products abroad, so weak dollar for last quarter have to support their earnings.

Evaluation portfolio's investments ideas

Our portfolio is in small positive zone now, but we are rather confidence about its future nice perfomance. Saying that investment ideas on what portfolio is build now are working. We saw that our portfolio feeling much better on good trendive days where we can saw big changes in S&P. Until today we saw only 3-5 those days on June.
I want to acknowledge that we did some mistake with thin stock. This mistake are in risk managment area. We have some think stocks like DW, TECUA, VOXX. If we would have news on it which will push stock much , we will have big problems to cover our more than 1000 shares stakes if we will need it coz avarage trading volume on this stocks are somelike 100k , etc.