TIPS is an leading indicator, according to Russell Napier, and it is one of the few leading indicators that have been shown to pre-empt market movement (most of the time).
In this comparison daily chart of TIPS and the S&P500 (orange line),you can see the recent lead but TIPS, and it is now under a Sell signal, with technicals pointing to the end of the bullish rally. And yet the S&P500 is weakening, stalling and just about to roll over.
TIP is about to breakdown a trendline, and MACD is also rolling over into the bearish territory, soon. A thought to consider...