From the link:
Anyway, the market after a break of its December/January uptrend line, took another shot and manage another high on SPY (among other index ETFs) last week but dropped back down below the January high (332.95) to close at 332.20 Friday.
Not such a big deal except the NYMO after the rally off a double-bottom earlier in the week (see the white line with the red dots on the chart below) fell with the price weakness to turn the all important NYSI (longer-term breadth) negative.
That’s an automate sell on its own but there’s maybe more…
For the more and a chart: