Tick Indices
Classic Tick Index from NYSE is a broadcasted real-time market breadth data. It is a market timing tool.
Tick indices we used here are customized Tick Indices created from specialized baskets of stock indices components.
The S&P 500 Tick16 on the front page is one of them.
Comments
How are defining extreme tick selling? I’ve noticed that we had some big spikes at around 10:30 and 12:25 EST.
Mildly negative in % of components having negative tick + 2 std dev of negative net accumulated tick reading in something like Tick1K