Lesson 3 of the Fund Strategy knowledge supplement. Maps to the email’s ”🔲 ETF Grid Trading (satellite)” section.
Grid trading is a direction-agnostic, volatility-harvesting strategy — ideal for range-bound ETFs.
1. What is a grid?
Draw a “grid band” over price with evenly spaced rungs:
- Price drops to a rung → buy one grid;
- Price rises back to the rung above → sell one grid.
Repeated small spreads compound into returns — small sums, no directional bet.
2. Why ETFs for grids?
Use broad ETFs (e.g. CSI 300) or commodity ETFs (e.g. gold):
- They trend up long-term but swing hard mid-way — perfect for repeated “sell-high, buy-low”;
- ETFs don’t delist, have low fees, good liquidity — far safer than single stocks.
3. Building a grid
Take CSI 300 ETF (~4.76 now):
- Band: ±10% → 4.28 – 5.24;
- Rungs: 8, each ~0.12 apart;
- Per grid: budget ¥30,000 ÷ 8 ≈ ¥3,750/grid → round to 700 shares ≈ ¥3,331;
- Orders: next buy 4.64 (down 2.5%), next sell 4.88 (up 2.5%).
4. Two iron rules
- Below the band → stop buying, hold (don’t average down forever);
- Above the band → position cleared, rebuild on pullback.
5. Complement with DCA
- DCA: mindless base, buy-only, long-term;
- Grid: swing-trade the base for volatility gains.
Same ETF — DCA owns “long-term”, grid owns “volatility”. No conflict.
6. Biggest risk
Strong trends break it: a relentless rally sells out early; a relentless fall keeps buying into a heavy position. So cap each grid at ~6% of total — a satellite sleeve, not the core.
7. Grid on ETFs you already hold
No need to open new positions — reuse ETFs already in your account:
- Already held: sector ETFs like Korea-China Semiconductor ETF (513310) or Sci-Tech Chip ETF (588200) swing hard, giving more “sell-high, buy-low” chances;
- Planning to buy: a dividend anchor like Bank ETF (560670) can also spare one grid sleeve for extra yield after you build the position.
Same discipline: ±10% band, 8 rungs, fixed amount per grid, stop below, clear above. The email’s ”🔲 ETF Grid Trading” section lists both satellite sleeves and your held ETFs, with each one’s grid lines and next trigger price.
8. Tomorrow’s order template (practical)
After each close, place a limit buy at the “next buy price” and let it fill on a dip — no need to watch the screen:
📌 Limit buy 700 shares CSI 300 ETF (510300) @ 4.64 (triggers down 2.5%) 📌 Limit buy 400 shares Korea-China Semiconductor ETF (513310) @ X.XX (triggers down X%)
Buy on trigger, sell on the rung above. Spend 2 minutes daily checking if the “next rung” needs shifting. The email’s ”📅 Tomorrow’s grid order list” already ranks ETFs by easiest-to-trigger and flags the top priority to place tonight.
⚠️ This article is a framework illustration and not investment or trading advice. Markets are risky; decide with care.
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