Echo crystal

item #28942 · buy limit 8 · 15 days of history backtested

Latest price: 1,418,611 gp instant-buy · 1,373,012 gp instant-sell
Last 24 h average: 1,443,756 gp high · 1,398,657 gp low · 474 traded

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Buy limit8

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%	13.8k	5.9k	5.9k	5.8k	5.8k	0
8%	21.6k	15.2k	18.0k	17.9k	17.9k	12.1k
12%	20.8k	14.4k	17.3k	17.2k	17.2k	12.1k
16%	20.8k	14.4k	17.3k	17.2k	17.2k	12.1k
20%	20.1k	13.8k	16.6k	16.5k	16.5k	11.4k
25%	28.9k★	22.5k	18.2k	18.1k	18.1k	12.5k

Optimal buy 25% / sell 75% → 4 flips, 28.9k/day per unit (~13.2h hold) vs Default 12% / 93% → 2 flips, 17.2k/day (+68%)

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.