Courts are less likely to be a time is of essential clause that is too broad – instead of reasonable assurance that the contract is being respected, the court may interpret the clause as a sanction, and courts do not impose penalty clauses. Similarly, the variability of the value of shares creates a reason for punctuality during a share purchase transaction. This type of transaction involves the purchase of the shares of a target company, which exposes a buyer to the risk of fluctuations in the prices of the target shares. In the absence of an explicit period of the essential clause, that risk would be absorbed by the contracting parties and, ultimately, would affect the purchase price. TOE clauses contained in an applicable contract are applicable under national contract law. Therefore, a party wishing to impose this condition should ensure that the contract explicitly indicates the date of its conclusion and that it contains a clear warning that failure to enter into on that date results in non-payment; any ambiguous language can be used to deny the intended effect. . . .