ZEC – Privacy coin representative currently priced around $3,600–$3,700 (recent surge followed by slight pullback). Support/Stop-loss: short-term $340–$350 (strong support, stop-loss if broken); secondary $300–$310; deep support $258–$280 (medium-term accumulation zone). Recommended stop-loss below $330–$340 (risk 5–8%).

Resistance/Take profit: short-term $382–$420; mid-term $450–$500; optimistic $600+ (near historical highs). Partial take profit: first level $400–$420, second level $450+, trailing follow-up.
Indicators: RSI neutral to slightly high (beware of overbought), MACD momentum weakening but trend still bullish. Under the privacy narrative + sector rotation, if BTC is stable, ZEC tends to follow the rally. Suggest light positions around $350 on pullback, reduce holdings when BTC drops.

2. Mainstream coins (BTC/ETH/SOL/ADA/XRP/LTC/LINK, etc.) – Base position in BTC: $71k–$72k oscillating. Support $68k–$70k (reference for stop-loss), resistance $74k–$80k. The trend dominates the entire market, altcoins need BTC to be stable.
ETH: around $2,180–$2,210. Support $2,050–$2,100, resistance $2,300–$2,500. Supported by DeFi/L2 narratives, medium-term bullish but short-term choppy.
SOL: high-performance representative. Support at $140–$160 (depending on current), resistance over $200. Highly correlated with meme coins (like BONK), SOL tends to follow the rally.
ADA/ALGO/ATOM/AVAX/NEAR/SUI: Layer 1 public chains. ADA supports psychological level, AVAX/NEAR/SUI have strong AI + high throughput narratives. Generally RSI neutral, consider retracement to MA support (e.g., 0.618 Fib), stop-loss if breaking key lows by 5–10%. Take profit in stages at 20–50% gains.
XRP/TRX/TON: Payments / cross-border. XRP often affected by regulatory news, support stable, easy to rebound.
LINK/ONDO: RWA / oracle. Institutional narratives, ONDO tokenized assets strong, take profit based on narrative hype.

Operation: Mainstream coins make up over 50% of the portfolio for preservation. When BTC drops below $68k, reduce altcoin holdings overall.
3. DeFi / AI / Other medium-term altcoins (AAVE/ARB/APT/ICP/FET/RENDER/TAO/UNI, etc.) AAVE: DeFi leader, currently around $105–$110. RSI previously oversold, rebounded, support at $94–$100, resistance $115–$135. Stop-loss below $95, take profit in stages at $120/$140.
ARB/APT/ATOM/HBAR/ICP: Layer 2 / public chains. ICP/Aptos/Sui are high-performance, TAO (Bittensor) strong in AI decentralized computing, RENDER GPU rendering aligns with AI trends. Support at recent lows or MA, stop-loss 8–12%, target 30–100%+ gains driven by narrative (high beta).
FET/FIL/ETC/DOT: AI / storage / established projects. Can explode during sector rotation, combine with volume-based trading.

These coins are similar to ZEC, with medium-high volatility: BTC stable + sector hot when following, set stop-loss at key support levels if broken.
4. Meme coins / high-volatility meme group (BONK/PEPE/SHIB/DOGE/FARTCOIN/PIPPIN/PNUT/TRUMP/GIGGLE, etc.) Meme sector is highly emotional, recent pumps in TRUMP/FARTCOIN, PIPPIN has retraced significantly. Volatility can reach 20–50% daily, suitable for small positions with quick entry and exit. BONK/PEPE/SHIB/DOGE: veteran meme coins on Solana/Ethereum. Support at psychological levels or recent lows, tight stop-loss (5–8%), quick take profit (10–30% gains or trailing). Driven by Solana or community hype.
FARTCOIN/PIPPIN/PNUT/TRUMP: emerging / PolitiFi. FARTCOIN/TRUMP surged then consolidated, PIPPIN retraced, needs observation. Support at sell pressure zones, very strict stop-loss (exit if breaking lows), take profit when good, avoid FOMO.
Others like ASTER/KITE/GRASS/HYPE: emerging high-risk meme coins, similar high risk. Volume + RSI<30 oversold buy, >70 sell.

Meme strategy: less than 10% position, combined with ZEC privacy or SOL ecosystem rotation. During overall alt season, meme coins can 10x but also risk zero, strictly set stop-loss.