Please see my "brief update" comments, that I just posted on the site.
They're really cool-looking. It definitely looks space-aged, and eye-catching. Good job not using the enginering cliche's. The blocks are suitable subtle reflections of some structure, or engineering. That's excellent, and that's all it needs.
Although, the way the blocks are staked up look like a bar chart, to me. As I've mentioned in other comments to other artists, bar charts are not used in the stock market, or with investments. The common symbol that people would associate with the stock market is a 'trendline' or some sort.
And, I appreciate you using some different colors, but red might not be good for a finance-related company. That color is used to symbolize losses, both in charts, and in the text of financial and accounting documents. So, almost any color but red could be used. Maybe try silver or gold?