What to Expect from AT&T's Q4 2018 Earnings(Continued from Prior Part)## AT&T’s scaleAs of January 7, AT&T (T) was the second-largest wireless carrier with a market capitalization of $224.8 billion. Meanwhile, Verizon’s (VZ), T-Mobile’s (TMUS), and Sprint’s (S) market caps were $234.4 billion, $58.1 billion, and $25.8 billion, respectively. Market capitalization represents a company’s market value at a particular time, which is its shares outstanding multiplied by its stock price.## AT&T’s forward PE ratioAT&T’s stock price has declined significantly in 2018. This trend has made AT&T stock cheaper. As of January 7, AT&T has a forward PE ratio of 8.64x for fiscal 2019, and its estimated PE ratio for fiscal 2020 is 8.49x. The forward PE ratios for Verizon, T-Mobile, and Sprint are 12.03x, 17.07x, and 113.24x, respectively, in fiscal 2019. On this multiple basis, AT&T stock is trading at a discount to its competitors.## AT&T’s forward EV-to-EBITDA ratioAs of January 7, AT&T has estimated EV-to-EBITDA (enterprise value-to-earnings before interest, tax, depreciation, and amortization) ratios of 6.58x and 6.59x, respectively, for fiscal 2019 and fiscal 2020. The forward EV-to-EBITDA ratios for Verizon, T-Mobile, and Sprint are 7.14x, 6.73x, and 4.36x, respectively, in fiscal 2019.Continue to Next PartBrowse this series on Market Realist: * Part 1 - Will AT&T Continue Its Earnings Growth in Q4 2018? * Part 2 - What to Expect from AT&T’s Revenue Growth in Q4 2018 * Part 3 - Will AT&T Be Able to Deliver EBITDA Growth in Q4?