The purchase also released Enel from a condition of the joint venture that required Enel to float a portion of its holding in Wind in 2003.

Вот, значит, какая ситуация. Запуталась, помогите пожалуйста..........

Контекст:
The Wind Group was formed as a joint venture between France Telecom and Italy's electricity company Enel following the 2001 merger of the mobile company Wind and the fixed network operator Infostrada. Enel bought France Telecom's 26.7% stake in Wind for €1.5 billion in 2003. The purchase also released Enel from a condition of the joint venture that required Enel to float a portion of its holding in Wind in 2003.

float может иметь много значений, включая "продать публично", "предложить на продажу неограниченному кругу лиц".

Что именно имеется в виду здесь - станет ясно только если аскер даст контест