TECHNICAL ANALYSIS (by Intraday Dynamics)
What Is an Island Reversal?
S&P 500 Index Hourly HLC
The S&P 500 gapped into lower trade on Tuesday and the cash index now has a large 7-day, island top on the hourly chart. (The daily SPY shows the same large island.) The hourly reached oversold conditions in Tuesday’s trade. Prices gapped under a steep trendline and tested the last breakout area, and pulled up just short of support at 5180. A continued breakdown under 5180 should test 5155 with potential to pivotal short-term support at 5129/5125. Daily closes under 5125 can carry to 5045/5038 with counts to 4977 and critical short-term support of 4909/4905. A breakdown under 4905 sets up a move to 4587. Closes under 4587 give counts to 4378 with potential to daily support at 4168/4160.
SPY Daily H-L-C

Resistance
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Support
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Charts courtesy of CQG, Inc., and Trading View