How about the situation where both currency increase like what happen last day do you have speculation for that . There is possible scenario to those investors is moving to other crypto currency even before the snapshot of XRP and sold it in highest price in favor for them to make a gain. They don't wait for snapshot because they know what will happen to XRP after that more of the holders will sell it you can even predict that before snapshot more of the people invested in xrp is because they want to recieve a free tokens and plan to sell it after.