1. Right-side trading signals and key levels

🔹 Long strategy

• Breakout to long: If $2431 breaks with volume and the hourly close price stabilizes above it → long on the right side, participate in short-term rebounds, stop-loss below $2431;

• Support level for long: Confirm support effectiveness at $2377 on a pullback → light long position, with stop-loss below $2347;

• Left-side ambush: Layout long positions at $2311, with a forced stop-loss if it breaks below $2273.

🔹 Short strategy

• Break down to short: If $2493 breaks down with volume → short on the right side (Note: The original text may contain a typo; according to the context and resistance levels, a reasonable short signal should be a breakdown below the support at $2431, suggested to rely on actual volume);

• Resistance level for short: If it rebounds to $2507 → light short position, with stop-loss above $2549.

2. Multi-timeframe key level analysis

🔹 Hourly level

• Resistance range: $2435 → $2485 → $2508 (with $2435 turning from support to resistance; after breaking, look towards $2485-$2507);

• Support range: $2393 → $2350 → $2311 (with $2377 being a key point for bullish attempts).

🔹 4-hour level

• Key support at $2388, if broken, look towards $2350 → $2313;

• Ultimate risk: If $2311 is lost, there may be a rapid drop towards the $2200 area.

🔹 Fibonacci retracement target

Hourly level 1:1 retracement target at $2242; current trends show ETH may test this level, so caution is needed regarding the depth of retracement.

3. Core logic of operations

1. Resistance pressure: $2435 as former support turned resistance, requires volume confirmation to break; otherwise, it is likely to face pressure and fall back;

2. Retracement risk: If the Fibonacci 1:1 target of $2242 is reached, it may trigger further selling pressure, and long positions must have strict stop-losses;

3. Left-side order discipline: Long positions at $2311 should have $2273 as a defensive line; if it breaks, exit decisively to avoid expanding losses if it drops towards $2200.

4. Risk warning

• The 4-hour level at $2388 serves as a dividing line for bulls and bears; if it is lost, bearish strength increases, and one must shift to a short strategy;

• If ETH tests $2242, observe the effectiveness of support at that level before deciding whether to lay out a rebound long position;

• Recent market volatility has intensified, all operations must be strictly volume-confirmed, do not blindly chase highs or lows.

Note: The market is currently at a critical stage of Fibonacci retracement. It is recommended to closely monitor the breakout situation at $2435 and the support defense at $2311. Use stop-loss orders and do not hold positions!