The run from March 2020 to now is like the run into the March 2000 top. Google is exhibit A in this move. It had a very bullish trend in place from the 2008 low. The stock did about a 12x from than 2008 low before the pandemic hit. It then proceeded to double from its pre-pandemic all-time high amid the Fed-induced euphoria. The move looks crazy on the log chart and it looks like a classic bubble on the linear chart.
Normally, a trendline break is a good bearish setup for the short-term, but nothing to get excited about. It wouldn't carry much predictive value. I'd be nervous about a fakeout move. Two things are different this time. One, the market downturn seems to be starting, not finishing. I see higher probability, but no guarantee, of a bigger loss even in a short-term blip of a pullback. Two, the extreme move that preceded it. When a bubble pops, it doesn't go from extreme to normal. RCA in 1929, the Nasdaq in 2000, the Nikkei in 1989, the Shanghai Composite in 2015 all look similar because when bubbles pop they go down the same way they went up. If this turns out to be a decisive break of the trendline, then it is a very significant break for the rest of the stock market.
The trendline is at $2693 and change today...please not that despite the headline and that I do think the end game is unfolding here, as a trade Google might not be done yet. I can and do reverse positions quickly based on price action.
Update: Here's a zoom on the price. The move out of this area is going to be powerful in either direction. If the broader market stabilizes and moves higher, I will exit my puts.