DislikedIf you were talking about obvious highs and lows where orders congregate i could see your point. You really think XX bank gets a large order from a corporate client, or Paul Tudor Jones wants to make a trade and they quickly go check the open of the last hour candle?
I disagree, so i must just be autisticIgnored
However, they probably do not say "last hour opened at 1.3221. Rather they look at the color, size and shape of the candle just like you and me. So yes, they pay attention to an arbitrary construct (the candlestick) and one of the 4 key key parts of the candle stick is the open.
As for you being autistic... I hope not for your sake. But seriously, the comment was to underscore the reality that a massive order will not be dumped "randomly" on the market with no consideration for tactics. And if they are looking at a candle stick chart, the open will have more weight than the second immediately following it.