This might be a simple configuration setup depending on the environment that the Stock Ticker is using. The JAWS frames functionality can be set up to speak every time something changes in the Frame. Unfortunately, some JAWS Frames usually rely on the JAWS cursor, which can be unresponsive in some modern applications.
So first use the minus key in the NumPad and see if the JAWS cursor can find the spot. Then you need to create a frame
Frame Get Bottom Right. control + Shift + ]
Place the cursor where you want the bottom right corner of the frame to be and then press this keystroke. If the top left corner has already been defined, this activates Frame Viewer to give the frame a name and other characteristics.
Frame Get Top Left. control + Shift + [
Place the cursor where you want the top left corner of the frame to be and then press This keystroke. When This keystroke is pressed twice quickly, it will position the new frame on the current control and start the Frame Viewer.
One of the characteristics of frames is to speak on changing content.