Building an Open-Source Dip-Buying Strategy for Altcoins (Pine Script)

Source: Dev.to

Why altcoins specifically

Alts dump harder and bounce faster than BTC. When Bitcoin drops 5 %, SOL might drop 15–20 % in the same window. That’s not a bug for this strategy—it’s the whole point. The bigger the capitulation candle, the more likely you get a real bounce after it. On BTC the dumps are usually more gradual, less “single‑candle panic” and more slow bleed. The strategy needs that sharp, overdone dump to work well.

How it actually works

The strategy runs through four stages in sequence.

Stage 1 — Find the dump

The strategy watches for a single bar that:

• Breaks the N‑day low and
• Drops more than a threshold percentage.

Normal volatility doesn’t trigger it; it needs a genuine “oh shit” candle (e.g., SOL falling from $145 to $128 in one 15‑minute bar).

Stage 2 — Confirm before buying

Instead of buying the dump candle (which looks great in backtests but is impossible to identify in real time), the strategy waits for the first green close after the dump. Additional filters:

• Flatness filter – rejects entries if price is just chopping sideways.
• Minimum rebound check – requires enough bounce to suggest actual buyers showed up.

// simplified logic (not the real Pine script)
confirmed = close > open
            and reboundFromLow > minReboundPct
            and not isFlat(flatnessThreshold)

Stage 3 — Trail the bounce

Once in, the strategy tracks the highest close since entry. When price pulls back X % from that peak, it exits. This adapts automatically:

• Small bounce → quick exit with small profit.
• Large reversal → rides the whole move and exits only when momentum dies.

peakSinceEntry = max(peakSinceEntry, close)
retrace = (peakSinceEntry - close) / peakSinceEntry
if retrace > trailPct and profit > minProfit
    exit()

Stage 4 — Cooldown

After an exit, the strategy sits out for N bars. Without this, it would re‑enter immediately in choppy conditions and get chopped up. Adding a cooldown prevented multiple rapid entries/exits during sideways action.

The repainting thing

The dev made repainting non‑negotiable. The strategy only uses confirmed bar values—no security() lookahead, no intra‑bar signals. You can verify it yourself: apply it on a 1‑minute chart, watch it live for 30 minutes, and compare with the backtest for the same period. If the signals match, the script is clean.

Many TradingView strategies with thousands of likes repaint, producing impressive backtests that fall apart in forward testing. This one matches.

What to watch out for

Settings before you backtest

• Commission: set to 0.075–0.1 % (not zero, which is TradingView’s default; using zero can artificially inflate results).

Where to find it

• Strategy: Dump Reversal Peak Trail v2 – free and open‑source on TradingView. All parameters are adjustable.
• Execution platform: GeekTrade – handles signal deduplication, position reconciliation, and risk limits. It’s non‑custodial with a free tier.
• Full breakdown:

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Feel free to share other reversal approaches you’ve tried, especially on lower‑cap alts where volatility is even crazier.