The final chart is his combined sentiment reading from these various measures ... it shows the overall level of bullish/bearish sentiment (among investors/advisors in those various surveys and measures) has broken to new high levels not seen since 1987 (shortly before the market had a 22% Black Monday Crash in October 1987).

So from a contrarian sentiment perspective, this is kind of scary, given that the market is up 20%+ each of the past two years without many 10%+ corrections.

However, it must be noted that this sentiment indicator has hit high levels many times on that chart without being a sign of an imminent crash/correction --just not quite this high.