Book 1 (Updated July 29, 2026)

Page 133: in the second example, under the table, change significance level of 1% to significance level of 5%.

Page 156: in the formula for historical return of a portfolio, the subscript should by t-1

Book 2 (Updated July 13, 2026)

Page 66: Change $2.20 to $2.42:

D3 = $2.42 × 1.10 = $2.662

Book 3 (No Updates)

No content updates at this time.

Book 4 (No Updates)

No content updates at this time.