The guidance was also released without a "P" flag which signifies price sensitive information.
The tribunal found Geneva to be in breach of rule 3.1.1 and 3.16.2(c) and ordered that Geneva pay a financial penalty of $65,000, pay the costs of NZX and the tribunal, and be publicly censured.
In a statement to the exchange, Geneva Finance said it did not agree with the tribunal's decision in principle.
"It is the board's view that this decision by the tribunal limits the time available to directors to give proper consideration to an unaudited forecast prepared
by management, prior to approving that forecast to be released to the market.
"Geneva takes its responsibilities and continuous disclosure obligations seriously and will not appeal the decision."
The Geneva board said it remained focused on building on its expected 21 per cent pre-tax profit increase for the September 21 half-year and increasing shareholder wealth.