It was a slow day today on the PSE as the US markets remained shut due to the Labour Day. CEZ closed at its intraday low on thin volume. (520 CZK, -0,74%) traded in a narrow range; (1 060 CZK, -2,03%) broke soft support level at CZK 1,070. Komercni banka closed higher thanks to an international buyer, (1 005 CZK, -0,79%) more or less unchanged. (654 CZK, 6,41%) extended its Friday gains on ongoing short squeeze following better than expected cash-flow situation.