For months, Republican donors viewed Marco Rubio as a growth stock. After his bull run in Wednesday’s debate, investors are buying.

It started even before the debate in Boulder ended. Donors who had been getting calls from Rubio’s Colorado campaign chairman for two months were suddenly emailing him. Seven donors he’d been working couldn’t convey their messages fast enough: I’m in.

“The movement in donors and activists is significant and palpable,” said Josh Penry. “People saw Marco last night and they saw a conservative and they saw a winner. The people who always liked him but doubted his polish now see a guy on stage they can see next to Hillary Clinton.”

What Penry felt in Colorado was happening nationwide. In the hours after the debate, Rubio’s campaign saw its online fundraising numbers skyrocket.