Obsidian helmet

item #21298 · buy limit 70 · 15 days of history backtested

Latest price: 630,388 gp instant-buy · 604,752 gp instant-sell
Last 24 h average: 610,333 gp high · 589,691 gp low · 622 traded

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Buy limit70

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%	11.1k	11.1k	13.7k★	11.0k	11.0k	4.6k
8%	10.3k	10.3k	11.6k	8.9k	8.9k	4.6k
12%	10.3k	10.3k	11.6k	8.9k	8.9k	4.6k
16%	7.6k	7.6k	8.9k	6.3k	6.3k	1.9k
20%	7.4k	7.4k	8.7k	6.3k	6.3k	1.9k
25%	4.9k	4.9k	6.2k	3.9k	3.9k	531

Optimal buy 5% / sell 85% → 4 flips, 13.7k/day per unit (~23.5h hold) vs Default 12% / 93% → 2 flips, 8.9k/day (+54%)

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.