I hadn't even heard of Charles Schwab. I did a google image search and it doesn't appear that the "voice bubble" is part of their logo, it seems that they use this element for titles etc. I was not inspired by this company. I was thinking more along the lines of "word of mouth", one friend telling another about this service/site. Feel free to contact me, if you need modifications.
I tried some different elements because I thought the highlight could possibly look better if it were more rounded. I also changed the square dots (on the letters "i" and the period) by circles. Feel free to let me know if you would like variations.