ETH 15-minute short-term rally up 0.62%: Glamsterdam upgrade narrative and institutional buying driving the rebound

On July 26, 2026, 22:00–22:15 (UTC), ETH saw a short-term surge of 0.62% within 15 minutes, with a price range of 1,926.06–1,940.3 USDT and an amplitude of 0.74%. In the prior 24 hours, ETH rose by about 3.43%, peaking at 1,940.5 USDT. Overall, it showed a rebound pattern, but order book depth was extremely thin—only 1 level of effective resting orders—liquidity was exceedingly scarce, so the strength of consensus behind the rally shouldn’t be overstated.

The main drivers behind this sudden move are two positive factors: the planned disclosure of Ethereum’s next-generation protocol upgrade, GlAmsterdam, and ongoing institutional accumulation. The GlAmsterdam upgrade plan will raise the gas limit floor to 200 million, focusing on scaling the base layer and providing medium- to long-term fundamentals support for ETH, strengthening market confidence in Ethereum’s technical evolution. At the same time, spot ETH ETFs recorded significant inflows. Notably, well-known trader Arthur Hayes recently accumulated about 3,914.84 ETH through multiple market makers (average price: $1,908.86). His on-chain activity is verifiable, and institutional allocation demand hasn’t diminished.

Second, the exchange’s ETH inventory has fallen to a multi-year low of about 15.1 million coins (over 21 million a year ago). Recently, more than 658k ETH flowed out from top platforms, so supply contraction could provide potential price support. However, short-cycle technicals show overbought signals: both the 15-minute and 1-hour RSI are in the overbought zone. The 4-hour level remains bearish, with ADX at only 15.1, suggesting the medium-term trend direction isn’t clear. Funding rates have spiked to above 0.2%, leading to pin-insert liquidation blowups for shorts. In the derivatives market, long/short competition is intense. In addition, inflation pressure from global oil prices approaching $100 pushes capital toward safe-haven assets like BTC, leaving altcoins under overall pressure.

Current volatility risk is high. Traders should watch the $1,940 resistance area and the $2,000 psychological level above. For support, focus on $1,909 (Arthur Hayes’ average cost line). If the price breaks below $1,775, it may trigger liquidations of about $552 million in long positions. In an environment with extremely shallow order book depth, even a small amount of capital can amplify price swings, so short-term technical pullbacks are possible. It’s recommended to monitor key indicators such as changes in exchange ETH net inflows, spot ETF fund flows, and the funding rate trend.