How to Tell If a Crypto Bull Run Has Started
BTC is up 20.9% in 7 days to $78,413, ETH is up 26.9%, and the Fear & Greed Index reads 65 (Greed). A crypto bull run is a sustained multi-month uptrend across most of the market, not a single green week.
How to Tell If a Crypto Bull Run Has Started
BTC is up 20.9% over the past seven days, sitting at $78,413. ETH is up even more, 26.9% over the same stretch, at $2,456. Search interest in "has the crypto bull run started" has spiked hard this week, and it's an obvious question to ask when the whole market turns green at once.
A crypto bull run is a sustained period, usually months rather than weeks, where prices across most of the crypto market trend upward, driven by rising demand, improving sentiment, and capital rotating from cash into risk assets. One strong week doesn't qualify. Neither does a single coin pumping on its own news. What separates a bull run from a short-term squeeze is breadth and duration: does the move hold, and does it spread beyond BTC?
TL;DR
- BTC is up 20.9% over 7 days to $78,413; ETH is up 26.9% to $2,456 over the same window.
- BTC dominance sits at 59.2%, meaning BTC still holds the majority of total crypto market cap even as ETH outpaces it this week.
- The Fear & Greed Index reads 65 (Greed) and BTC's RSI(14) is 57.1 (Neutral), not yet at the overheated extremes that usually mark a bull run's later stage.
- A single green week is not a bull run. Multi-month breadth across BTC, ETH, and altcoins is the actual signal.
- CryptoEngine's active LONG signal, entered August 19 at $69,221, is up 13.3% since entry as BTC has continued to climb.
What is a crypto bull run?
A crypto bull run is a market-wide uptrend that lasts for months, not days, where the majority of tracked assets are rising together and trading volume is expanding alongside price. It's a market condition, not a single price candle.
The word "run" matters. A bull run implies continuation. BTC jumping 10% in a day because of a single ETF headline isn't a bull run on its own, it's a catalyst. Whether that catalyst turns into a run depends on what happens in the weeks after: does buying pressure persist, does the move spread to other assets, and does the pullback after the initial spike hold above the prior range instead of erasing it.
What signals suggest a bull run is underway right now?
Three things line up when a real bull run is forming, and it's worth checking each one rather than reacting to price alone.
Breadth beyond BTC. When only BTC is rising and altcoins are flat or falling, that's BTC-specific demand, not a market-wide trend. Right now ETH is actually outperforming BTC, up 26.9% over 7 days versus BTC's 20.9%. That's a meaningful signal. When capital starts rotating into ETH and other large-caps at a faster pace than BTC, it usually means risk appetite is broadening, not concentrated in the safest crypto asset.
Sentiment that's rising but not maxed out. The Fear & Greed Index reads 65 right now, which is Greed, but it's not Extreme Greed (80+). Early-to-mid bull runs tend to show sustained Greed readings with occasional pullbacks to Neutral. When the index gets stuck above 80 for extended periods, that's usually a late-stage signal, not an early one.
Dominance direction. BTC dominance at 59.2% tells you how much of total market cap sits in BTC versus everything else. A bull run's early phase is often BTC-led, with dominance holding steady or rising as capital moves into crypto broadly through BTC first. As the run matures, dominance tends to decline as capital rotates further out into ETH and altcoins looking for higher returns. ETH's 7-day outperformance this week is an early hint that rotation may be starting, though one week alone doesn't confirm a dominance trend shift. I'd want to see it hold for another two or three weeks before calling it a pattern.
How long do crypto bull runs last?
There's no fixed timeline, and anyone giving you an exact date is guessing. Historically, crypto bull markets have unfolded over many months rather than weeks, with multiple legs up interrupted by sharp corrections along the way rather than one uninterrupted climb. What tends to repeat isn't a specific duration, it's the shape: an initial breakout, a period of consolidation that tests whether buyers defend the new range, and then further legs higher if that range holds.
That's why a single week of gains, even a strong one like this past week, doesn't answer the "how long" question. What answers it is whether the next pullback holds above the pre-breakout range or erases the move entirely.
There's no single data point that confirms a bull run, so it helps to think in phases and what each one usually looks like across sentiment, dominance, and momentum:
| Phase | Fear & Greed | BTC Dominance | RSI Behavior | What It Suggests |
|---|---|---|---|---|
| Early | Neutral to Greed (40-65) | Rising or stable | Breaks above 50 from below | BTC leads, breadth is still limited |
| Mid | Greed (60-80) | Starts declining | Sustained 55-70 range | Capital rotates into ETH and large-caps |
| Late | Extreme Greed (80+) | Falling sharply | Repeated overbought (70+) readings | Altcoin speculation accelerates, risk of sharp pullback rises |
| Correction | Drops from Greed toward Fear | Often spikes as capital flees to BTC | Falls from overbought back toward Neutral | Broad market gives back gains, BTC outperforms on the way down |
Right now, Fear & Greed at 65 and RSI at 57.1 place BTC somewhere between the early and mid phase in this framework, with ETH's outperformance this week fitting the "capital starts rotating" pattern of a mid-phase transition. That's a read on current conditions, not a guarantee of what happens next.
Common mistakes traders make during a bull run
Chasing green candles without a plan. Watching BTC run 20.9% in a week creates real pressure to buy immediately, at whatever the current price is, with no stop-loss or exit plan. That's how people end up buying the local top of a leg up right before a pullback. A trade taken without a defined stop-loss isn't a plan, it's a reaction to FOMO.
Confusing one asset's pump with a market-wide run. A single altcoin spiking 40% because of its own news doesn't mean a bull run has started. Check whether the move is broad (multiple large-caps moving together, rising volume across the market) before treating it as a trend rather than an isolated event.
Ignoring how far price has already moved. After a 20.9% weekly move, the risk/reward of a fresh entry is different than it was a week ago. RSI at 57.1 still has room before hitting overbought territory, but that room shrinks with every additional leg up. Position size should account for how extended the move already is, not just the direction.
CryptoEngine's signals build the stop-loss and entry-timing question into every call rather than leaving it to gut feel. The current active LONG entered at $69,221 on August 19, well before this week's move, with a defined stop-loss set at entry.
How it all fits together
None of these signals work in isolation. RSI at 57.1 tells you momentum is positive but not yet extended. Fear & Greed at 65 tells you sentiment has shifted toward optimism but hasn't reached the extremes that usually precede a sharp correction. BTC dominance at 59.2%, combined with ETH's stronger 7-day performance, hints that capital may be starting to rotate beyond BTC. That's usually what an early-to-mid bull run transition looks like.
Put together, that's a market showing real strength without the classic late-cycle warning signs. CryptoEngine's active LONG signal, up 13.3% since its August 19 entry, was triggered by an uptrend breaking above resistance before this week's acceleration. That kind of structural confirmation tends to matter more than a single strong week on its own. If you want a deeper look at how sentiment extremes factor into entry timing, our RSI and Fear & Greed signal timing guide covers that in more detail, and our guide to BTC dominance explains how dominance shifts play out during rotation phases.
Frequently Asked Questions
Has the crypto bull run started? BTC is up 20.9% and ETH is up 26.9% over the past 7 days, with Fear & Greed at 65 (Greed) and BTC dominance at 59.2%. That combination is consistent with an early-to-mid bull run phase, but a single strong week isn't confirmation on its own. The next pullback holding above the pre-breakout range would be a stronger signal.
How long will the crypto bull run last? There's no fixed duration. Historically, crypto bull markets have played out over many months with multiple legs higher interrupted by sharp corrections, rather than a single continuous climb. The more useful question than "how long" is whether each pullback along the way holds its range.
What's the difference between a bull run and a short squeeze? A short squeeze is a fast, sharp move driven by traders with losing short positions being forced to buy back, and it usually fades within days. A bull run is sustained over months and shows up across most of the market, not just in one asset's price spike.
Does rising BTC dominance mean a bull run is starting or ending? It depends on the phase. Rising or stable dominance early in a run usually means BTC is leading and capital hasn't broadened out yet. Falling dominance later in a run usually means capital is rotating into ETH and altcoins as the trend matures. A sudden dominance spike during a downturn often means capital is fleeing back to BTC as a relative safe haven.
What RSI level signals a bull run is getting overheated? Sustained RSI readings above 70 usually indicate overbought conditions, and that's when traders tend to tighten stops rather than open new positions. BTC's current RSI of 57.1 is neutral, meaning there's room for further upside before hitting that zone, though that can change quickly during a fast move like this week's.
Bottom line
A crypto bull run is a market-wide, multi-month trend, not a single green week. BTC's 20.9% 7-day gain, ETH's 26.9% gain, Fear & Greed at 65, and RSI at 57.1 line up with an early-to-mid bull run pattern, not a confirmed multi-month run yet. The signal to watch isn't this week's candle. It's whether the next pullback holds.
If you'd rather have entries and stops calculated from this kind of structural read instead of reacting to green candles in real time, see how CryptoEngine's signals track these conditions.
Disclaimer: This article is for educational purposes only and does not constitute financial advice. Past performance does not guarantee future results. Always do your own research before making trading decisions.
Market data via CoinGecko.