The last public offering by Tesla (accompanied by a major buy announcement by Elon Musk) was spectacularly successful in that it didn't halt the upward trajectory of the stock and may have helped by eliminating major issues (the federal loan, debt overhang, the pace and scope of the supercharger rollout, capital requirements for the model X rollout). Tesla still has significant critical uses for new capital like securing the funding for the gen III model and global deployment of superchargers and service facilities. Another $1 billion round would dilute a lot less than when the stock was at $90. Since half of it wouldn't go to paying off debt, it would go a long way to securing Tesla's plans for the next several years. Should Tesla take advantage of the market's enthusiasm for it's prospects by raising the new capital needed to fund it's near term global plans?