I like #18 better than #17. The stock chart in the "G" is kind of working, but not completely. Can you play around with that a little. Stock charts these days are usually line charts and not bar charts, so the bar chart looks a little antiquated.
Thanks for your suggestions. I tried to find another type treatment, but I can not find the best proportion in different way.
Here are another font variations. I made it neater than the previous one. #54 and #55 The different from both of them in the corner side. Sharp edge on #54 and rounded corner on #55.