The chart of Interactive Brokers
IBKR
compared with S&P futures.
We can see that the 2 prices move in tandem for the most part except for a period between mid till late 2018 where a significant drawdown of the SPY was preceded by a V top (inverted V) pattern where IBKR's price moves up in a straight-line run then drops almost as quickly as it ascended.
If this same pattern were to repeat in 2021, we could expect a looming market correction.
IBKR
compared with S&P futures. We can see that the 2 prices move in tandem for the most part except for a period between mid till late 2018 where a significant drawdown of the SPY was preceded by a V top (inverted V) pattern where IBKR's price moves up in a straight-line run then drops almost as quickly as it ascended.
If this same pattern were to repeat in 2021, we could expect a looming market correction.