But it sort of does imply that. Here's the reasoning -- There's a liquid market of a lot of shares trading hands at $40+. Anybody who bought a share at $26 knows he or she can sell today for $40+. To a first approximation, choosing not to sell at $40 has roughly the same effect as choosing to buy at $40. If the price is supported at $40+, that's at least very suggestive evidence that enough buyers could have been found at that price in the first place.