Buffett's Sister Lost Heavily Selling Puts During 1987 Crash
A post recounts how Warren Buffett's sister, Doris, sold uncovered put options to generate income after Black Monday and suffered losses when the Dow fell 22.6%, and promotes an article on Charlie Munger's 25 rules for avoiding costly decisions.
Original post · 1 min read
After Black Monday, she owed $2M.
Doris needed income. The shares paid no dividend.
A broker suggested uncovered put options. She collected premiums for promising to buy stocks if prices fell.
Then the Dow dropped 22.6% in one session.
The positions could not be closed fast enough.
Charlie Rose asked why she had not called the world's most famous investor before entering the trade.
"I thought he'd be so disapproving."
Do not create income by taking a risk that can wipe out the capital underneath it.
Charlie Munger spent decades studying exactly why smart people still make decisions like this.
The article below organizes Munger's 25 Rules for Avoiding Costly Decisions into a practical checklist.
Lima @limalemonnnCharlie Munger’s 25 Rules for Avoiding Costly Decisions — In 2005, 81-year-old investor Charlie Munger revised a lifetime of observations into 25 psychological tendencies that explain why intelligent people make ruinous decisions.
Every person making an

