Question about PCGS Coin Facts.

PCGS Coin Facts shows auction results. Are these hammer prices or do they include the buyer premium?
Worry is the interest you pay on a debt you may not owe.
"Paper money eventually returns to its intrinsic value---zero."----Voltaire
"Everything you say should be true, but not everything true should be said."----Voltaire
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Comments
I'm sure each auction company/site has its own API, so the answer might vary. The listings I recall pulling in the past included the buyer's premium FWIW.
All of the results I've seen included the buyers' premium. There might be exceptions, but I have not noted them.
Thanks all.
Worry is the interest you pay on a debt you may not owe.
"Paper money eventually returns to its intrinsic value---zero."----Voltaire
"Everything you say should be true, but not everything true should be said."----Voltaire