300308
Pending Latest rating：Buy
Entry zone
646.7 – 670
Near market · as of 2026-10-16
Stop
616.4
initial distance -8.0%
Full size
9.4%
in tranches 40% / 30% / 30%
Support / resistance
670 / 819
ATR(14) 46.7
CloseEntry zoneStop
Triggers
- ArmedFirst tranche: price enters the entry zone3.8%@ 670
- ArmedAdd 1: pullback holds support (confirmed at close, executed next open)2.8%@ 681.7
- ArmedAdd 2: breakout above resistance on volume, held 2 days2.8%@ 819
- ArmedStop: sell everything below this price@ 616.4
Timeline
- Entered pool@ 670
Rating historyChinese only
- Buy现价在 646.65–670 入场区间下沿，前瞻 PE 不到 10 倍，与 2026H1 净利增速 242% 严重背离；但盘中再创新低、资金仍在撤离，以止损 616.40 严格控制，分批而不是一次建仓
- Buy在候补区间 646.65–670.00 下沿；fPE 9.7 意味着市场只认 1 年景气，营收增速 175% 的龙头有显著预期差；分批，止损 616.40
- BuyFwd PE 不到 10 倍而增速 >100%，缩量回调无资金出逃；现价在候补入场区 646.65–670.00 内，分批，止损 616.40
- Buy候补池标的（10-18 入池，入场区间 646.65–670.00，止损 616.40），评级与上次一致为买入；前瞻 PE 10.08 配 ROE 64.6% 是全篇 A 股最极端的"业绩兑现 vs 估值收缩"背离；现价正在入场区间上沿，严守 616.40
- Buy分批，前瞻 PE 13 倍对应 200% 利润增速，是全球 AI 光模块的"台积电"——Google/Meta/NVIDIA 的 1.6T 需求绕不开它；高开低走说明短线筹码松动，分三批在 630–680 建仓，10/29 财报是验证点
Earlier rounds
| In | Out | Entry | P&L | R | Exit reason |
|---|---|---|---|---|---|
| 2026-10-08 | 2026-10-09 | 808.4 | -8.2% | -1.02 | Stop loss |
| 2026-09-28 | 2026-09-28 | 884 | -8.2% | -1.02 | Stop loss |
| 2026-09-01 | 2026-09-14 | 851.9 | +3.0% | 0.37 | Trailing stop |
| 2026-08-19 | 2026-08-24 | 943 | -8.2% | -1.02 | Stop loss |
| 2026-08-07 | 2026-08-10 | 955 | -8.2% | -1.02 | Stop loss |
| 2026-07-20 | 2026-07-28 | 979.5 | -8.2% | -1.02 | Stop loss |
Paper portfolio executed mechanically from published rules. Not real trades, not investment advice.