I think in light of today's bloodbath, it's worth giving this an update to say that my comment at the beginning of December has been mostly correct. My blurb about this being the time to try shorting TSLA with a 3-6 mo timeframe is still in the air. We haven't gotten one clear moment where the market has all "looked down" at the same time, but we've clearly installed a downtrend up through the D timeframe with mean reversion to long-term trend implied on the W.
SPX had one last rally back to highs over Xmas but the rest of the market hit its absolute peak in November.
There was a moment back in Nov-Dec where the VIX futures curve went into full backwardation for a day - something that had happened only 4 times since the post-2001 recovery, and the market has been mostly correct in those instances to predict that the market was on the verge of a lot more pain. It was around that time that the Fed finally threw in the towel on trying to wait out transitory inflation and started talking very hawkish.
World events have happened in the intervening months, but I'd argue that we were priced for absolute perfection that was pretty much impossible anyway, on a backdrop of the Chinese real estate bubble finally popping and the window closing on either loose major central bank policy or major new fiscal spending. Where was further liquidity to run up assets supposed to be coming from? It already had taken an annual flow into US equities larger than the prior entire net flow since 2009 to grind SPX up through most of 2021.
...so it was always going to be something, somewhere in the world that wasn't going to play out as perfectly as had been priced in.
That we got a war of conquest in Europe with related sanctions alongside further major COVID waves... well, I guess I would call those only loosely causal. The main casual factor was simply that prices got too disconnected from reality.
With the exceptions of exactly Black Monday and the 1mo 2021 COVID crash, and on the other end at 3 years for 1921, every bear market in US equities history has taken ~1-2 years to fall from peak to trough. One could make a rational argument that markets might make these overall moves faster on average now in the digital era than historically, but we have a low sample size for that.
I would say my main question right now is "which W trend does NQ stop at?" ~10 k is the mean for the uptrend that we bounced in 2020 and represents a shorter and faster expansion since 2017. ~6500 is the predicted mean for entire uptrend since 2009 and at -60% would be fairly consistent with other US equities bubble pops. Both would be good inflection points for at least a bear market rally.
When you start to game out what would have to happen to break down ~6500, well, we should be able to point to something concrete that's starting to break in the financial system by then. It's certainly on the table. We hit 1929 / Nikkei 1989 absurdity in the post-pandemic parabola.
Bubble popping patterns are unusually harsh and reliable in overall shape - because the end stage of bubbles is the point when new retail who've never seriously followed markets get in last, such that when things pop, it's their first rodeo and they collectively react pretty much the same way previously generations of humans reacted to the same scenario. Doesn't mean you get to be lazy when you trade them, but it does mean that if you're disciplined enough about risk management to survive the elevated short-run volatility, that there is a buffet of alpha to eat from.
Anecdotally, the non-trader mostly-passive retail I know in my life are still talking about buying dips and telling each other that QQQ is "on sale". Retail has been buying the dips so far in a big way. Sentiment has a long way to go.