Introduction

Published

March 19, 2025

What is this?

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Compound growth

TODO: Figure

The Compound Annual Growth Rate (CAGR), using the sampling frequency of \(\ell=252\) trading days per year, is

\[ r_\mathrm{CAGR}(t) = \left( \frac{a(t)}{a(t_{0})} \right)^{\ell/(t - t_{0})} - 1 \]

The portfolio problem

  • TODO

Active vs passive investing

  • Trading vs investing
  • Dollar Cost Averaging (DCA)
  • Brinson, G.P., Hood, L.R., & Beebower, G.L. (1986). Determinants of portfolio performance. 1
  • Brinson, G. P., Singer, B.D., & Beebower, G.L. (1991). Determinants of portfolio performance II: An update. 2
  • Hood, R.L. (2005). Determinants of portfolio performance: 20 years later. 3

1 Brinson, Hood, & Beebower (1986).

2 Brinson, Singer, & Beebower (1991).

3 Hood (2005).

Figure 1.1: Annualized returns of holding the S&P500 (source: awealthofcommonsense.com).

Why isn’t technical analysis discussed here?

TODO:

  • “Technical analysis” is mostly bullshit
  • Aronson (2007)