Why is the historical low price negative

$Hang Seng Index (800000.HK)$ $HSI Futures Current Contract (HSIcurrent.HK)$ The day before yesterday's review mentioned that the estimated previous top of 23,700 was not the peak. Yesterday it immediately broke through, and the increase was unexpectedly close to 1,000 points, as the short-term trading underestimated the extent of the rise. Therefore, many positions were previously entered in a bearish way, but in the end, the bears exited with stop losses at the close.Today, after hitting the high near 24,000 in the early session and entering bearish positions, the index fell sharply by nearly over 600 points, immediately recouping yesterday's losses significantly.Moreover, today it broke the new high again, reaching a maximum of 24,076, but by the end of the market, it fell back by about 70 points, producing a bearish candle. The current trend has not yet been broken, but from the previous low until now, it has risen close to 6,000 points. It is believed that those with positions can continue to hold until there is a clear trend reversal for profit-taking. Those without positions can wait for a pullback to get in. Actually, it is hoped for a quick pullback, as it allows for entry and also provides a healthy breath.Currently, the outlook remains the same as before. It is believed that even if there is a pullback, it shouldn't be too deep. However, if Futures fail to stabilize and close below 22,350, there may still be room for decline. The chance of Futures falling below 21,400 in the short term should be low, so it is considered that if a significant pullback occurs, it presents a good opportunity to incrementally go long. Recently, there has been a consistent approach to not hold positions overnight, only focusing on immediate trades, as there is no high chasing and no casual short selling.
Support and resistance can be referenced based on spot prices.
Support levels are 23150, 23250, 2...