While the Nasdaq 100 Index (NDX) is busy making new all-time highs, so is the NDX:VXN ratio (VXN is the Nasdaq 100 Volatility Index), as shown on the following two Monthly charts.
What is different about these two, is that the NDX:VXN ratio has run up against major resistance (the top of its long-term uptrending channel, while the NDX has a long way to go before it does the same.
With reference to the ratio chart, a drop and hold below the 460 level (127.2% external Fibonacci retracement level) could forecast a drop down to, potentially, major support at 380 (100% Fib retracement level plus bottom of long-term channel) on this chart, or lower.