TD Ameritrade 2019 Proxy and Annual Meeting of Stockholders

Appendix A TD AMERITRADE HOLDING CORPORATION RECONCILIATION OF NON-GAAP FINANCIAL MEASURES (Unaudited) Non-GAAP Diluted EPS (1) Fiscal Year Ended Sept. 30, 2018 Diluted EPS Fiscal Year Ended Sept. 30, 2017 Diluted EPS Diluted EPS - GAAP $ 2.59 $ 1.64 Non-GAAP adjustments: Amortization of acquired intangible assets 0.25 0.15 Acquisition-related expenses 0.78 0.17 Income tax effect of above adjustments (0.28) (0.12) Non-GAAP diluted EPS $ 3.34 $ 1.84 The term “GAAP” refers to generally accepted accounting principles in the United States. (1) Non-GAAP diluted earnings per share (EPS) is a non-GAAP financial measure as defined by SEC Regulation G. Non-GAAP EPS excludes the after-tax effect of amortization of acquired intangible assets, because management does not believe it is indicative of our underlying business performance, and acquisition-related expenses, because management believes these costs are not representative of the costs of running the Company’s on-going business. Non-GAAP diluted EPS should be considered in addition to, rather than as a substitute for diluted EPS. A-1 TD Ameritrade 2019 Proxy Statement