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Topic · Portfolio Management & Risk

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Portfolio Construction

54 articles · 3 checkpoints · 48 deeper reads · 3 reference notes

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  1. Once you can also hold cash, the whole efficient frontier collapses to a single best mix of risky assets plus a dial. That one mix is the tangency portfolio, and the straight line running through it is the capital market line.

  2. If you can rebalance continuously and your appetite for risk does not change with how rich you are, the optimal fraction of your wealth to hold in a risky asset is a single constant, edge divided by risk aversion times variance, no matter your horizon or your bank balance.

  3. The best portfolio to hold and the best portfolio to trade into are different things. Putting trading costs inside the optimizer, rather than subtracting them afterwards, produces a no-trade region and a partial-adjustment rule instead of a chase.

Then the rest

Reference notes3 short entries