SPX is between 61.8% retrace zone and 200 SMA. It could also do a 50 SMA support test. My feeling is if it breaks above 200 SMA you should see massive covering which could somewhat deplete the short rocket fuel stockpile we are sitting on.
On the topic of SPX MACD, I have been wondering for years about these megaphone structures that form over long periods of time. Its almost like a resonance pattern that builds up amplitude as it proceeds. So again here is the current record breaking case, with 3 trips to the support line. If I had to guess I would say the larger the drop in MACD to support, the more elastic tension is stored and released in the rebound. So #1 (being small) did not make it very far up, and #2 (being larger) made it farther. I would say #3 (ginormous) is more like #2, only 3 times bigger. MACD 9 EMA now is meandering around the MACD line just like 2 did. It did not stop the index from traveling higher the last time.