English to Spanish Bus/Financial Finance (general) Investment service company

Context: Order Execution Policy

"In this case the Company has the right to execute the order at
the next best available price. This may occur, for example, at times of rapid price movement if
the price rises or falls in one trading session to such an extent that under the rules of the
relevant exchange, trading is suspended or restricted, trading session start moments, during
volatile markets where prices may be moving significantly up or down and away from declared
price and during NEWS TIME."

Attempt:
" Esto se puede dar, por ejemplo, en momentos de movimientos rápidos de precios, si los precios suben o bajan en una sesión hasta el punto de que, bajo las normas del mercado en cuestión, se suspenden o restringen las operaciones, la sesión tiene momentos en los mercados volátiles en los que los precios pueden subir o bajar de manera significativa con respecto al precio declarado y durante el ??????. "

I cannot really know what it means... "working hours"? I do not really know...