There is an algorithm that consistently sells Bitcoin every Tuesday at 5 a.m. UTC. It has not missed a single week in the past six months. The earliest signs of selling pressure usually begin around 3 a.m.. If you don’t watch the hourly charts, you might hardly notice, because this selling pressure is almost invisible on the daily chart. But the most obvious action occurs at 5 a.m.. At this time, the selling volume suddenly amplifies. Even more strikingly, the trading volume during this Tuesday 5 a.m. hour is on average 36% higher than at the same time on any other day of the week. This indicates that the entities (or systems) behind it are not casually unloading a few BTCs, but executing large-scale sell-offs at a fixed weekly time in a deliberate manner.

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More noteworthy is that the Tuesday 5 a.m. hourly candlestick has been closing lower for 12 consecutive weeks. The truly strange part is—before Bitcoin peaked at 126K in October 2025, there was no statistical advantage at this time; price movements were roughly random noise, with no clear bias. But since Bitcoin’s top, it’s as if a switch has been suddenly flipped at 5 a.m. every Tuesday. Since then, this time slot seems to have been “activated.” Over the past three months, not a single genuine green hourly candle has appeared. If this were just random, the probability of 12 consecutive down closes would be about 1 in 5,000. That’s increasingly hard to explain as mere coincidence.

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What really makes me suspect that it’s not human sellers is another detail: the weekly declines are almost identical each time. Regardless of Bitcoin’s price at the moment, the drop is similar.
• Last October, it was at 120K
• Last week, it was at 65K
And the average decline during this period is consistently close to:
-0.38%
Almost like copy-pasting, week after week, the decline magnitude remains similar. Human traders wouldn’t typically sell in such nearly identical proportions across a market spanning over 50% in price. But algorithms would.

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Even more sinister is that this pattern isn’t just a one-time “dump and done.” After the 5 a.m. downward candle closes, the price often makes a very confusing move: it bounces back slightly. The rebound is small, usually only 0.02% to 0.09%, occurring roughly between 6 a.m. and 7 a.m.. But this small bounce is enough to mislead many into thinking:
• “Is the selling pressure over?”
• “Are the bulls regaining control?”
• “Is it time to buy the dip?”

The problem is—this rebound is likely just a trap. Starting from 7 a.m., the selling pressure often continues, extending through the London session and into the pre-market hours in the US (UTC 13:30). The selling becomes quieter and less obvious, but the downward trend persists. As a result, there’s an 80% chance that when the US markets open, BTC will be lower than it was at 5 a.m.. In other words, it’s not a quick spike that ends everything; it’s a pattern of initial dumping, a fake rebound, and then a slow bleed.

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And this selling logic affects more than just that one hour. Since October last year:
• There’s a 70% chance that Tuesday will wipe out Monday’s gains.
In other words:
• If Monday closes higher,
• The probability that Tuesday closes lower remains as high as 70%, or even higher.

To put it more vividly:
Monday “sets the stage,” Tuesday “takes it down.”

Over the past six months, data shows:
• The probability that Tuesday is the “weekly high” point is only 11%.
• The probability that Monday is the “weekly high” is as high as 42%.

This suggests that the market often pushes sentiment and prices up on Monday, only to see them dumped on Tuesday, as if someone is clocking in to do the job precisely. It repeats almost every week.

Who is behind this? Honestly, I don’t know.
I don’t know if it’s:
• ETF rebalancing
• Market makers hedging
• Or some more systematic institutional selling behavior

But what I do know is that the pattern is very clear:
• Selling pressure begins around 3 a.m.
• Peaks at 5 a.m..
• A fake rebound occurs around 6 a.m..
• Then the price continues to decline into the New York open.

And—
It has not missed a single Tuesday in three months.
So, regardless of who is behind it, if this mechanism remains unbroken—
The next Tuesday at 5 a.m. UTC will likely see it happen again.