IQFeed supplies unfiltered data. Because of this no tick is filtered out as a result you may see loads of undesirable ticks SHUT (purple light-weight) means that some major problem happened and also the plugin will never make an effort to reconnect instantly. Also, slightly delayed data is obtainable https://andybcazw.liberty-blog.com/29053157/an-unbiased-view-of-amibroker-data-feed