Understanding history helps us understand the present.
On 8/11, PLUG announced a $300 million public offering with the stock closing at $11.31. The closing price of the offering was $10.25; an 8% discount over the announcement price. The stock price dipped to $10.11 the day after the announcement, or about a 10% drop.
Six trading days after the announcement, the stock closed at $13.65 or 20% higher than it did the day the public offering was announced.
If we were to follow the same pattern: The offering price should be about $23 and, in six trading days, the stock would close at $30.
I could live with that.