What's driving the move

It's rare to see a move of this magnitude with so many simultaneous catalysts. It didn't start with spot buying alone.

US Treasury buyback surprise: An unexpected expansion of the US Treasury's bond buyback program pushed yields lower and sent capital broadly into risk assets. Commentators at investingLive.com, including Eamonn Sheridan, note that weaker yields combined with dollar weakness make BTC more attractive as a store of value — an argument that echoes the narrative around gold during periods of real rate cuts.

ETF flows as accelerant: US spot Bitcoin ETFs have now recorded net inflows for at least two consecutive trading days. The $297.5 million on August 17 followed by $189.3 million on August 18 indicates that institutional buyers didn't wait for a correction — they bought the breakout. Spot Ethereum ETFs contributed an additional $71.4 million on August 18, confirming that this is not a purely Bitcoin-driven episode.

Liquidation cascade amplified the rally: When BTC broke through the $68,000–$69,000 zone, it triggered forced closures of short positions built up over the summer months. CoinGlass data shows that $1.13 billion in BTC shorts were liquidated within 24 hours, mechanically pushing the price higher and generating momentum buying from technical traders.

Risk-on regime confirmed: The DXY (dollar index) came under pressure during the same period, and 2-year US Treasury yields pulled back following the buyback news. These cross-market signals paint a consistent picture: capital is rotating out of defensive cash positioning and into risk assets — crypto included.

Bitcoin's dominance held around 57% during the rally, initially signaling a BTC-led move. Altcoin breadth followed with a delay of a few hours — a pattern typical of genuine bull episodes rather than dead-cat bounces.

«When Bitcoin's price stabilizes or rallies, it reassures investors, which in turn prompts capital to flow into altcoins» — a principle that played out with textbook precision in this episode

Key figures

$71,900
BTC price
+8%
24h change
$2.7B
Total liquidations
62/100
Fear & Greed
$1.41 trillion
BTC market cap
+$200B
Market increase (24h)
$297.5M
BTC ETF inflows (Aug 17)
57%
BTC dominance
$2,270
ETH price
+17%
24h change
$72
HYPE price
+22%
HYPE 24h change
Bitcoin surges 8% past $70,000 — crypto market adds $200 billion in 24 hours - Bilde 1

Altcoin overview

Ethereum (ETH) is the big winner among large caps with a gain of over 17% to $2,270 — a multi-month high. Spot ETH ETF inflows of $71.4 million on August 18 suggest that institutional interest is no longer exclusive to BTC. The ETH/BTC ratio rose noticeably during the session, hinting that altseason rotation may be underway.

Hyperliquid (HYPE) was the percentage winner among larger tokens with +22% to $72. The token is closely tied to DeFi trading volume, and increased market activity broadly provides direct tailwinds for the protocol's revenues and token demand.

XRP had a more modest price reaction but managed what analysts had set as the minimum requirement: holding the $1.00 support level. A break below this would have sent a negative signal to a segment of the market already price-sensitive after prolonged legal uncertainty.

Solana (SOL), Uniswap (UNI), Aave (AAVE), Chainlink (LINK), and NEAR Protocol all posted solid daily gains according to market data, with no single token standing out dramatically on the downside. Broad participation across DeFi, Layer-1s, and oracles is a positive sign for overall market health.

Altcoin breadth — the fact that all major segments participated in the rally — is the strongest confirmation that this is more than an isolated Bitcoin bounce
Bitcoin surges 8% past $70,000 — crypto market adds $200 billion in 24 hours - Bilde 2

Technical picture

Bitcoin broke through the critical $69,000–$70,000 zone that had acted as resistance since June. This is a key sentiment boundary; $70,000 is psychologically significant and has historically attracted both momentum buyers and profit-taking pressure.

Support: $68,500 (former resistance, now first line of defense), $66,000 (50-day moving average, estimated), $64,000 (analyst Symbiote's short-term downside target in the event of a reversal).

Resistance: $72,000–$73,000 (volume profile from the May peak), $74,500 (seasonal top zone from Q1 2024).

RSI on the daily timeframe is approaching overbought territory (estimated 68–72 depending on the source), which is not in itself a sell signal in a trending market, but does increase the probability of consolidation or a brief pullback over the next 24–48 hours.

Open interest rose sharply during the rally. High OI combined with a strong price surge can indicate that leveraged longs are now heavily positioned — making the market more vulnerable to a squeeze in either direction.

If BTC holds $70,000 at the US close today, the breakout is technically confirmed. If it loses this level intraday, we risk a rapid return toward the $64,000–$66,000 zone

ETH technical: $2,270 is now the first resistance level. Support at $2,100 (psychological) and $1,980 (previous consolidation low).

What to watch

Price levels:

  • BTC $70,000 as new support — this is make-or-break for technical confirmation of the breakout
  • ETH $2,270 resistance — a break above could open the door to the $2,500 zone
  • BTC $74,500 to the upside — the next historical resistance zone

Upcoming events:

  • FOMC meeting minutes (due shortly) — the market will read any dovish tilt as a green light for further risk appetite
  • US Treasury policy: Any signals regarding further buyback operations will affect the yield curve and therefore risk appetite
  • ETF flows day three: Two days of solid inflows is positive, but institutional momentum must be confirmed over a longer period to validate the trend
  • BTC options expiry: Large options expirations can create volatility around strike price levels — check Deribit for exposure around $70,000–$72,000
  • Altcoin momentum: Will the ETH/BTC ratio hold, or will we see a classic rotation back into BTC if the rally stagnates?
Analyst Symbiote warns: «A painful reversal back toward $64,000 or even below $50,000» cannot be ruled out if BTC fails to hold $70,000 — a reminder that momentum and fundamentals still exist in both directions

Sources: CoinGlass (liquidation data), Bloomberg/ETF issuer data (ETF flows), investingLive.com/Eamonn Sheridan (macro context), CryptoPotato (market overview), Glassnode (dominance and on-chain)