$BTC Today (February 23, 2026), BTC and ETH are experiencing sideways weakness, with 24h declines of approximately 1.5–2.5%, remaining in a low-range box.

**Bitcoin (BTC)** ≈ $66,300–$67,000 (mainstream aggregated price around $66,700)
- Precise long entry points: $66,000–$66,300 (near intraday lows + recent support, formula: current price - 24h volatility×0.6 ≈ 66,700 - 1,200×0.6)
- Aggressive long: Breakthrough of $66,500 with confirmation of small bullish candle
- Precise short entry points: $67,500–$67,800 (intraday highs + short-term resistance, formula: current price + 24h volatility×0.7 ≈ 66,700 + 1,200×0.7)
- Aggressive short: Resistance around $68,200
- Core support: $65,500–$66,000 (breakdown accelerates bearish)
- Core resistance: $68,500–$70,000

**Ethereum (ETH)** ≈ $1,930–$1,950 (mainstream aggregated price around $1,940)
- Precise long entry points: $1,920–$1,935 (near intraday lows + strong support, formula: current price - 24h volatility×0.65 ≈ 1,940 - 50×0.65)
- Aggressive long: Breakthrough of $1,960–$1,980 to go long
- Precise short entry points: $1,970–$1,990 (integer resistance + short-term high, formula: current price + 24h volatility×0.8 ≈ 1,940 + 50×0.8)
- Aggressive short: Fake breakout around $2,000–$2,020
- Core support: $1,850–$1,900 (breakdown turns weak)
- Core resistance: $2,050–$2,100

Mainly sideways, it is recommended to wait for clear breakouts (BTC above 68k / ETH above 2k for bullish; below 65.8k / 1.88k for bearish) before increasing positions. Stop-loss at key levels of 1–1.5%, risk is your own.