Fiserv shares fell 44% Wednesday (Oct. 29) and as much as 6.7% Thursday (Oct. 30) after the company cut its full-year earnings outlook and announced some strategic changes.By completing this form, you agree to receive marketing communications from PYMNTS and to the sharing of your information with our sponsor, if applicable, in accordance with our Privacy Policy and Terms and Conditions .Complete the form to unlock this article and enjoy unlimited free access to all PYMNTS content — no additional logins req ...