Ethereum holds on to key support of $2,333 and breaks through the one-year downtrend line
Ethereum is currently trying to defend the recovery level of $2,333 after breaking through a year-long downtrend line in August. Of the past 12 trading days, the U.S. spot Ethereum ETF recorded net inflows in 10 trading days. Since late August, net capital inflows into the fund have exceeded $1 billion. As prices consolidate below the resistance level of $2,833, the size of open interest is close to $33.6 billion.
On September 10, the trading price of Ethereum was approximately US$2,434, down approximately 2.5% during the day. The market entered a narrow range of shocks above the price recovered in late August. This trend suggests that ETH is in a consolidation stage after prices have exceeded the downtrend line that guides the entire downtrend cycle from 2025 to 2026. During this period, the U.S. spot Ethereum ETF received funds injected on most trading days, and open interest in the derivatives market also rebounded to near previous cycle highs.
Trend line flips: From resistance to support
Ethereum broke through a year-long downtrend line in August and is defending that position. The chart shows that during its decline in 2025-2026, Ethereum has always followed a downtrend line anchored at the September 2025 high of nearly $4,949. Prices have followed this trend line downward for nearly a year. In August, prices broke through that line and were tested back from the other side, and have remained above since. When prices close firmly above this line, the trend line, which originally served as the ceiling on the downward trend, turns into the floor. This shift in role is the cornerstone of the current shock range.
Playing a key role is the 0.236 Fibonacci retracement level at US$2,333. The Fibonacci retracement is used to measure the depth of the market's correction in previous markets, where the tool bar extends from a June low of $1,525 to a high of $4,949. Each pullback level generated matches the true reaction point on the chart rather than just a decorative indicator. Recovering $2,333 is crucial because it was the top suppression level during the decline. Turning former resistance into support is the key to distinguishing a real recovery attempt from a short-term rebound.
Why the spot ETF became a solid backing for the bottom of $2,333
According to data from Farside Investors, the spot Ethereum ETF provided stable buying support throughout the consolidation period. In the 12 trading days from August 24 to September 9, the fund only experienced net outflows in two days, and the rest of the time was net inflows. BlackRock's ETHA accounted for most of the demand, and Fidelity's FETH and Grayscale's products also contributed on multiple trading days. In contrast, the two negative trading days on September 2 and September 8 had shallow outflows.
- Positive days: 10/12
- Negative days: 2/12
- Total inflow: US$1.11 billion
- Total outflow: US$72.5 million
- Net flow during the period: + US$1.04 billion
Net flow during the period exceeded US$1 billion. This passive, price-insensitive buying behavior absorbs selling pressure regardless of the pattern of the day's K-line, which largely explains why the $2,333 level remained solid even on a down-trading day like September 10.
Open interest contracts are near cyclical highs, trading volume falls back
On September 10, open interest in the Ethereum derivatives market was close to $33.6 billion, returning to near the peak of the previous cycle. Open interest contracts rise while prices remain range volatile, indicating that traders are adding positions to participate in consolidation rather than leaving without closing positions.
However, trading volume moved in the opposite direction. The surge momentum that drove the August breakthrough has gradually dissipated and shifted into subsequent horizontal consolidation. Trading volume shrinks during range swings, which usually means that the market is digesting previous movements rather than preparing to reverse. But it also means that the next real breakthrough requires new participants to enter the box limit.
The $2,833 ceiling determines whether recovery or suspension
Current prices are surrounded by two key levels. Below is the recovered $2,333, and the first line of defense inside is $2,399. Above is $2,833 where the 0.382 retracement level is located, the next resistance block and the point bulls hope to break through at the daily close. A breakthrough of $2,833 would be a key signal to confirm that the market has exceeded the scope of a "mitigating rebound." Further up,$3,237 at the 0.5 level and $3,641 at the 0.618 level mark areas where heavy selling occurs in the short trend, and if prices rise to that level, these positions will become heavy supply areas. And below the floor,$1,970 and $1,830 during spring and summer consolidation form the next safety net.
What happens if it falls below US$2,333
As long as the daily close remains above $2,333, the structure remains constructive, and the near-term goal is to test $2,833. If the daily closes back below $2,333, especially below $2,399, the August breakthrough will be questioned and the path to $1,970 will be reopened. Monday's 2.5% decline was accompanied by a correction in the overall market rather than a sell-off unique to Ethereum. On the same day, Bitcoin traded at approximately US$76,994, down 2.49% in 24 hours and 2.35% weekly, indicating that Ethereum's trading performance was due to widespread risk aversion pressure rather than a rupture of its own chart structure.
From the technical perspective, Ethereum's fundamental calendar has also become clear. The Ethereum Foundation released a unified roadmap on September 7, committing Layer 1 to achieve full quantum resistance by December 2029, and adjusting the scope of the upcoming Hegota upgrade to ensure that the timetable is maintained. For tokens currently trading in the technical range, this roadmap sets the long-term context, and both the capital flow and chart level will ultimately be priced.

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