A merry & shrewd investing community |
Best Of BRK.A |
CAGR = (1.35 × 0.9 × 1.20 × 1.15)(1 / 4) = 13.8%. Comparing the CAGR of your equity over 7+ years to the CAGR of the S&P500 index, over the same period, is the metric by which shrewdness is measured. 1/15 = 6.6%.1/15 = 6.6%. Unlike bonds, EPS tends to keep up with inflation, so the future yield based on today's price is generally much higher over time.10,000 × 1.09 × 1.09 × 1.09 ... repeating 20 times, and denoted 10,000 x 1.0920.Zero × [Your Net Equity] = Zero will always equal zero. Third, the math is surprisingly underwhelming. A $100,000 portfolio returning 10% over a decade gets you to $260,000 on your own. Adding 20% margin (at 7% interest) only nudges that to $286,000 - calculated as: (Normal Return) + (Return from the Margin Debt with a 7% Margin Rate) = (100,000 × 1.1010) + (20,000 × (1.10 - 0.07)10). That extra $26k is not life-changing — it's just a "marginal" tip for the decade of bankruptcy risk you carried. Finally, look at the asymmetry: if you're a great compounder, you'll be rich anyway without the debt; if you aren't, margin just amplifies your funeral. It's a tool that grows your downside exponentially while barely moving the needle on your win. More questions? Investing Beginners is waiting for you with a wonderful community of like-minded investors who will help you out—or visit the Berkshire Hathaway board to share ideas with a group of seriously experienced investors.
- Manlobbi
Best Of BRK.A | Best Of | Favourites & Replies | All Boards | Followed Shrewds | Open Questions | Moving a community | Privacy