TICK repeatedly strikes -1000 as the indicator signals the end of a deep correction. The 3rd strike corresponds directly to a 6-month low that Nasdaq hits just before it ejects into a strong rally. Unfortunately modern markets don't always respond to these classic turning points. Recent corrections have sent the indicator closer to -1500 before a significant reversal. Always look for several tests at deep TICK extremes to confirm a major shift in buying or selling pressure.