Two ways round. Above, a position you record: Cubit stamps the prices that were live at that instant and measures it against both ends from then on. Below, a position you invent, where you move the rulers instead — because the point only lands when you can watch a column flip while the position does nothing at all.
6 rulers · one request, one instant · nothing custodied · no transaction signed · a ruler that cannot be read is shown as absent, with the reason — never as its last price
⚠ nothing is bought, sold or held here. This records a quantity so it can be measured, and stamps the prices that were live at the moment you recorded it — a position opened against a ruler that cannot be read right now is refused, because it would have no honest opening measure and could only be guessed at later.
⚠ these two sliders move the RULERS while the position stays where you put it. The point is what happens to the columns when nothing happens to the position.
each of these is one division from the canonical figure — never from another column