Dragon harpoon

item #21028 · buy limit 5 · 15 days of history backtested

Latest price: 1,381,822 gp instant-buy · 1,340,441 gp instant-sell
Last 24 h average: 1,231,790 gp high · 1,193,762 gp low · 678 traded

🔔 Set a price alert

Buy limit5

TypeMembers

Notenot in the current top scan — backtest below still applies

Price chart

drag to pan · scroll to zoom · hover for values

Candles use the GE's average instant-buy (wick top) & instant-sell (wick bottom) per period; bodies show period-to-period mid-price moves — the GE publishes no true open/close. buy bandsell band

Backtest — profit/day per unit by band

Each cell replays this item's history with that buy/sell percentile pair, no lookahead (bands from past data only). ★ = best. Hover a cell for flips & hold time.

buy↓ sell→	75%	80%	85%	90%	93%	97%
5%	16.6k	17.8k	17.8k	17.8k	11.6k	12.9k
8%	23.4k	24.6k★	19.9k	22.0k	17.1k	18.4k
12%	22.6k	23.8k	19.1k	21.2k	17.1k	18.4k
16%	21.7k	22.9k	18.2k	20.3k	16.2k	17.5k
20%	21.7k	22.9k	18.2k	20.3k	16.2k	17.5k
25%	22.1k	19.6k	17.3k	19.4k	15.7k	17.0k

Optimal buy 8% / sell 80% → 5 flips, 24.6k/day per unit (~9.4h hold) vs Default 12% / 93% → 3 flips, 17.1k/day (+44%)

Bands are a starting point, not a promise — the fill model is simplified and popular flips crowd (your buy gets bid up, your sell pushed down). How this works →

Unofficial fan project — not affiliated with or endorsed by Jagex. Data from the OSRS Wiki real-time prices API. A game, not financial advice; nothing here is automated and you shouldn't automate it (it's against Jagex's rules).

For information only - not financial advice. In-game Grand Exchange prices fluctuate and flips can lose value; trade at your own risk.