Downside-Protected Stock Collar
Trade some upside to protect a concentrated stock position from collapse
- Difficulty
- Expert
- Time to result
- ~days to results
- Steps
- 5
- Confidence
- 96%
A stock collar protects a concentrated position by combining two options trades around the shares. The holder buys puts, which establish downside protection, and sells calls, which surrender gains above a chosen level. Premium received from the calls can offset some or all of the cost of the puts. Cuban used this structure after Broadcast.com was acquired for Yahoo stock: because Yahoo was public, options were available, and he applied the hedge to his entire position. The mechanism exchanges uncertain unlimited upside for a bounded range of outcomes, reducing the chance that paper wealth disappears in a market crash. Execution is technically, legally, and tax sensitive, so the framework is a risk-management model rather than a do-it-yourself recommendation.
Origin
After Yahoo acquired Broadcast.com with public stock, Cuban sold calls and bought puts across his position before the dot-com bubble burst.
Core principles
- 01Paper wealth is exposed until downside is controlled
- 02Protection can justify giving up part of the upside
- 03Calls can help finance protective puts
- 04The hedge should cover the risk intended to be protected
How to run it
- 1
Quantify concentration risk
Measure how much wealth depends on one stock and the loss that would be unacceptable.
Pro tip Model the effect of a severe price decline on total net worth.
Watch out Do not treat current market value as secured cash.
- 2
Set the protected range
Choose the downside floor to protect and the upside level you are prepared to give away.
Watch out A tighter floor or higher cap may materially change option costs.
- 3
Buy protective puts
Acquire puts sized and dated to protect the intended portion of the stock position.
Watch out Mismatched quantities or expiries can leave exposure unprotected.
- 4
Sell covered calls
Sell calls against the shares to collect premium while accepting a cap on upside.
Pro tip Evaluate the put and call as one risk range rather than isolated trades.
Watch out The shares may be called away above the strike.
- 5
Validate and monitor
Have qualified advisers verify the structure, then monitor expiries, corporate actions, taxes, and counterparty exposure.
Watch out Options strategies can create complex legal and tax consequences.
In the wild
Cuban received public Yahoo shares when Yahoo bought Broadcast.com. He sold calls, giving up part of the upside, and used puts to protect the downside across his entire position. When the dot-com bubble burst, the hedge preserved the value that many other paper fortunes lost.
→ The concentrated acquisition proceeds were protected through the market collapse.
Common mistakes
Protecting only a token fraction
A hedge that covers too little of the concentrated position does not solve the core capital-preservation problem.
Ignoring the upside cap
Selling calls funds protection by giving away gains above the strike; that trade-off must be acceptable in advance.
Executing without specialist advice
Option sizing, tax, liquidity, and contractual restrictions can materially alter the result.
Is it for you?
Best for
It is best for sophisticated holders of a concentrated public-stock position who prioritize capital preservation.
Not ideal for
It is not ideal for investors who lack options expertise, hold illiquid shares, or cannot accept capped upside and professional costs.
From the transcript
“So I could sell calls which gave up part of the upside but allowed me to buy something called puts which protected my downside.”
“And so I sold calls, bought puts, that's called a hedge.”
“And I did it for my entire position.”
From the episode
Episode 486: Mark Cuban: Why Most Entrepreneurs Hire Wrong (And Go Broke)
Mark Cuban