I'm not sure whether this logic indeed applies. I have no experience with irregular trading hours and whether order types get modified.
%% I assume that's in US dollars; my IBD data shows CSCO price May 9,10 hi $34.26-low $33.58. You may get by using a market order, with CSCO i have done stuff like that[ swing- position, medium time frame....BUT NOT first 15 minutes NasdaQQQ +open post market+ premarket, Here 4 M. It was around 50 dma so OK buy/sell , but i seldom use market order or post+premarket. If you are selling CSCO to close a position + looks like you are; you could have entered a good till canceled @ 50 day moving average limit order , price Looks like you did a market if touched order or market order?? if you are not in US dollars call your broker. Or you typed like i did first time on this post, full of errors.LOL