What constitutes a successful "lowball"

What constitutes a successful lowball? One that gets accepted.

sisyphus: A successful lowball and a good deal are two very different things. A successful lowball may just be symptomatic of an absurd asking price.

Anyway, in tracking successful lowballs, I usually look for a closing price at least 15% below a stale ask, or 10% below a fresh one. Keep in mind that the bid-ask spread in these situations is often much larger that the final discount. Public records only reflect the figure upon which the buyer and seller agreed, after negotiations that usually involve some degree of difference-splitting.

The asking price at the time of the bid is the denominator. Original and intermediate asking prices are irrelevant. Prior advertised reductions are the stuff of price-chopping, not lowballing.