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by mantasm 2579 days ago
The company becomes equally less valuable after a buyback.

Consider a company with value of $1000, with 100 shares outstanding. Each share is $10. Buying back 10 shares, the company spent $100, so the company is now worth $900 and has 90 shares outstanding. Each share is still $10.

This is the basic model that shows share price should be unaffected by buybacks, but there are other effects. The buyback could signal to investors that the company is unlikely to be inefficient with capital, so investors would value the company at $910 instead of $900.

Alternatively, in a demand/supply model of shares, the buybacks could have exhausted some of the supply of shares, so the valuation for the company settled on by the rest of the market is higher.

There's no clear answer here, but reality is probably somewhere between these models.

2 comments

> Consider a company with value of $1000, with 100 shares outstanding. Each share is $10. Buying back 10 shares, the company spent $100

How would you buy 10% of the outstanding stock of a real company and pay exactly the market price for the entire block? On a public exchange, you'd need to bid higher than the market price for someone to sell you a block that big (otherwise it wouldn't be worth their while to sell).

If you're buying in the public market, other sellers will see that some party is willing to pay above the market price for this stock. They'll raise their own ask price as a result. In private, off-exchange sales, you'll be dealing with seasoned investors (family offices, hedge funds etc) where they're likely to know your situation, and you'll almost definitely pay a premium to acquire that stock.

I think you may be confusing market cap with share price. Market cap does not generally increase with buybacks, only share price does.