What happens after Bitcoin's biggest 1-hour pumps?
After big 1-hour pumps, Binance Bitcoin was up a day later 52.28% of the time vs 52.04% for all hours. Compare drops, years, Ethereum and Solana.
After Binance Bitcoin's biggest 1-hour pumps, price was higher 24 hours later in 52.28% of 3,988 cases. For all hours it was higher 52.04% of the time. The middle 24-hour move was +0.13% after a pump and +0.08% for an ordinary hour. So a big pump told us almost nothing about the next day. After a big drop the same share was 56.16%. These are past cases, not a forecast.
For the same test on sudden drops, see What happens after Bitcoin drops suddenly in one hour?.
What counts as a big 1-hour pump?
First we find a market's typical hourly move: the middle size, ignoring direction, of its hourly price changes over the last 720 hours (30 days). A pump is an hourly rise of more than 3 times that. This is not a rare "three-sigma" event. It only says the hour was unusually large for that market at that time.
We only know a pump after the hour ends. So every result starts at the close of the pump hour, not at its low.
The median is the middle result when you sort all the moves. We compare each result with all other eligible hours of the same market.
How did Bitcoin do after a pump, compared with a drop?
This is Binance BTCUSDT, a perp (a futures contract that never expires), from September 2019 to October 2026. There were 3,988 pump hours and 3,846 drop hours with a full 24-hour window. The table shows how often price was higher, with the median move in brackets.
| Look-ahead | After a pump | After a drop | All hours |
|---|---|---|---|
| 12 hours | 50.95% (+0.03%) | 54.86% (+0.19%) | 51.46% (+0.04%) |
| 24 hours | 52.28% (+0.13%) | 56.16% (+0.32%) | 52.04% (+0.08%) |
| 48 hours | 53.56% (+0.22%) | 55.54% (+0.41%) | 52.41% (+0.16%) |
After pumps, the share higher sat within 1.16 points of the all-hours share at every length. At 12 hours it was a little lower. After drops, price was higher more often by roughly 3 to 4 points. See what happens after Bitcoin drops suddenly for that side.
The spread was wide in both cases. Here is the range of the middle 80% of 24-hour moves, from the 10th to the 90th percentile.
| 24 hours later | 10th percentile | 90th percentile |
|---|---|---|
| After a pump | −3.29% | +4.30% |
| After a drop | −3.53% | +4.22% |
| All hours | −3.07% | +3.51% |
So does Bitcoin dump after a pump? Not more than usual. After a pump, one case in ten fell by more than 3.29%, against 3.07% for an ordinary hour. Pumps came with somewhat wider outcomes than an ordinary hour, in both directions.
Do pumps come alone, or in groups?
In groups. A big pump often has more big hours near it, so the cases overlap. Binance BTCUSDT had 3,988 pump hours. When we keep only pumps at least 24 hours apart, 1,387 remain.
| 24 hours later | Cases | Higher | Median move |
|---|---|---|---|
| All pump hours | 3,988 | 52.28% | +0.13% |
| Pumps at least 24 hours apart | 1,387 | 51.33% | +0.09% |
| All hours | 61,612 | 52.04% | +0.08% |
Spacing them out put the result a little below an ordinary hour. For the 48-hour look, spacing pumps at least 48 hours apart left 905 cases, 54.03% of them higher, with a median of +0.24%. For 12 hours, 1,973 cases were 49.62% higher. None of this is far from normal, and the counts are not 3,988 separate tests. Big hours bunching together is a general habit of crypto prices; see volatility clustering.
Did the answer change by year?
Yes, in both directions. Here is the 24-hour result for each year on Binance BTCUSDT. 2019 is a partial year, starting in September.
| Year | Pump hours | At least 24 hours apart | Higher after a pump | All hours higher |
|---|---|---|---|---|
| 2019 | 114 | 41 | 42.98% | 42.45% |
| 2020 | 691 | 214 | 55.28% | 58.03% |
| 2021 | 479 | 187 | 55.32% | 52.32% |
| 2022 | 514 | 184 | 49.22% | 46.88% |
| 2023 | 679 | 211 | 52.28% | 52.79% |
| 2024 | 564 | 203 | 55.32% | 53.75% |
| 2025 | 515 | 193 | 47.96% | 51.35% |
| 2026 | 432 | 154 | 51.39% | 51.15% |
The pump column ran above all hours in 5 years and below in 3. In 2025, price was higher after only 47.96% of pumps, against 51.35% for ordinary hours. In 2021 and 2024 it was higher after 55.32%. That kind of swing from year to year is why we do not call any one number a rule.
What about Ethereum, Solana and Coinbase?
We also ran the same test on spot Bitcoin and Ethereum on Coinbase, and on Binance perps. Coinbase and Binance rows are never pooled.
| Market | Pump hours | Higher after a pump | All hours higher | Median after | All-hours median |
|---|---|---|---|---|---|
| Binance BTCUSDT | 3,988 | 52.28% | 52.04% | +0.13% | +0.08% |
| Coinbase BTC-USD | 5,680 | 53.71% | 53.01% | +0.21% | +0.12% |
| Binance ETHUSDT | 3,754 | 52.10% | 52.13% | +0.18% | +0.13% |
| Coinbase ETH-USD | 4,832 | 52.17% | 51.68% | +0.17% | +0.10% |
| Binance SOLUSDT | 2,964 | 53.00% | 49.77% | +0.38% | −0.02% |
Across all 12 markets, the 24-hour share higher after pumps was above the all-hours share in 10 and below in 2, by between −1.16 and +3.24 percentage points. Solana had the biggest gap, and it can look like a pattern. We would not read it that way. It was the largest of 36 comparisons (12 markets, 3 look-ahead lengths), and with pumps at least 24 hours apart Solana's share was 52.61% of 1,072 cases. Some gap will always be the largest.
What do fees do to these results?
This is a cost check, not advice. A long bought at the close of the pump hour, held 24 hours, with a 0.05% taker fee on each side (0.10% in total), had a median of +0.03% on Binance BTCUSDT and was positive in 50.55% of cases. A taker fee is paid when an order trades right away. An ordinary hour gave 49.47% positive. That fill at the closing price is hypothetical, and spread and perp funding are not included.
What does this data not show?
- It does not show why a pump happened. It has no news or order-book data.
- It does not show that the next pump will act the same way. Years differed a lot.
- The 3 times rule is one choice. A different cutoff would give other events.
- The baseline does not control for calm and wild periods.
- The coins are a chosen set that still trades today.
How we measured this
We used hourly Binance perp bars and Coinbase spot bars. For Binance BTCUSDT, data runs from September 8, 2019 to October 19, 2026. At each hourly close we compared the hour's return with the median absolute return of the previous 720 hours, which all had to exist. A pump is a return strictly above 3 times that. Forward moves of 12, 24 and 48 hours start at the pump close, and every hourly close in between must exist. Baselines use all eligible hours of the same market. Missing prices were never filled.
Try this in Comparand
Connect Comparand to your AI app and ask:
- "Get completed hourly bars for Binance BTCUSDT for 2024. Flag each hour that rose more than 3 times the median absolute hourly move of the previous 720 hours, and show the move 12, 24 and 48 hours later." The venue_bars tool returns the open, high, low and close of each completed bar, and it is free. Your agent does the flagging. The tool does not.
- "Find the 10 closest past charts to Binance BTCUSDT's last 48 hourly bars, ending right after the pump." The shape_analogs tool uses only the same coin on the same exchange, and you can set the end time to a past hour with end_utc. Each match shows its own path and its own move 12, 24 and 48 bars later, in bp (100 bp is 1%). It costs $0.01 per search and gives no average or hit rate.
You can try 3 coins free, read the docs, or see pricing. For why a past share is not a promised chance, read why past crypto moves are not a forecast.
The short version
- After Binance BTCUSDT's big 1-hour pumps, price was higher 24 hours later in 52.28% of 3,988 cases, against 52.04% for all hours.
- After big drops it was 56.16%, so the two sides did not mirror each other.
- Pumps cluster: 1,387 cases remain when kept 24 hours apart.
- Ethereum matched Bitcoin. Solana's higher share is not a pattern we would trust.
- Past cases, not a forecast.
Questions people ask
What happens to Bitcoin after a big 1-hour pump?
In the past, almost nothing unusual. On Binance BTCUSDT from September 2019 to October 2026, price was higher 24 hours after 52.28% of 3,988 big hourly rises, against 52.04% for all hours. The middle move was +0.13% against +0.08%.
Does Bitcoin keep rising after a sharp rise?
Not more than usual. After big pumps, price was higher 12 hours later 50.95% of the time, 24 hours later 52.28% and 48 hours later 53.56%. All hours gave 51.46%, 52.04% and 52.41%.
Does Bitcoin dump after a pump?
Not more than usual in these past cases. A day after a big 1-hour pump on Binance BTCUSDT, price was higher 52.28% of the time, about the same as any hour. One case in ten fell more than 3.29%, against 3.07% for all hours.
Is a pump different from a drop?
Yes, in these past cases. After big drops, Binance BTCUSDT was higher 24 hours later 56.16% of the time. After big pumps it was 52.28%, almost the same as an ordinary hour.
Do pumps come one at a time?
No. They cluster. Binance BTCUSDT had 3,988 pump hours, but only 1,387 remain when we keep pumps at least 24 hours apart.
Did Ethereum and Solana behave the same way?
Ethereum did. Binance ETHUSDT was higher 24 hours after 52.10% of pumps, against 52.13% for all hours. Solana looked higher (53.00% against 49.77%), but we do not read that as an effect.