The 10ma of NYSE new highs minus new lows does a good job of confirming rallies and corrections. The MACD of the $NYHL also works well. At the moment the MACD is trying to turn up but the 10ma is still headed down. The fact is it is headed down in spite of a 3 day rally, which suggests the rally has problems. If the 10ma and the MACD both turn up while the market holds up above the March low, then we could begin to consider that the larger uptrend has resumed.