RuleOne

← Learn · Module: Psychology and practice

272 · Options Mistakes and Risks

2020-06-30 · 31 minEventReduce basisStory

In one sentence: Phil argues that a falling price is not a loss until the value of the business falls, using Buffett's Burlington Northern buying and Alan Meacham's letters, then warns about options after a young investor's death tied to a confusing weekend account balance.

Key ideas

How it maps to RuleOne

Buffett, Munger and Graham links

Words to know

Try this

Using a company you'd like to own, write a four-tranche plan with prices. Then open /holdings/ or a spreadsheet and work out your account's paper loss if only the first two tranches fill and the price falls another 20%. Decide in advance what fact would make you sell, so the dip alone doesn't.

If a market loss ever feels unbearable, please talk to someone you trust or a local crisis line; no position is worth that.

Check yourself

  1. Four equal tranches at $80, $70, $60 and $50: what's the average cost?
    AnswerWith equal dollars per tranche the average cost is the harmonic mean, about $63. Phil rounds to "60, 65 bucks".
  2. Why isn't a falling price a loss in Rule #1 terms?
    AnswerThe loss happens if the business value falls or you sell. If value stays far above price, the drop is an opportunity.
  3. Why was the options account scary?
    AnswerThe trade settled while markets were closed, so the account showed a huge negative balance before the offsetting stock sale on Monday.

Short quotes

"If you don't know what you're doing with options, please don't do them." (Phil, ~27:30, auto-transcribed)

optionsbull put spreadmark to markettranche buyingfund manager incentivesburlington northernalan meachamconcentrationemotionsrisk

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AI study notes from an automatic transcript. Names and figures may be misheard, and quotes are short excerpts for study. Not investment advice.