Contract of Harmony Acquisition

item #30837 · buy limit 50 · 32 days of history backtested

Latest price: 2,400,000 gp instant-buy · 2,000,000 gp instant-sell
Last 24 h average: no recent trade high · 1,637,501 gp low · 4 traded

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Buy limit50

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%	91.2k	91.2k	88.6k	101.6k	101.6k	103.5k★
8%	91.2k	91.2k	88.6k	101.6k	101.6k	103.5k
12%	91.2k	91.2k	88.6k	101.6k	101.6k	103.5k
16%	66.4k	66.4k	55.4k	68.4k	68.4k	70.3k
20%	66.4k	66.4k	55.4k	68.4k	68.4k	70.3k
25%	66.4k	66.4k	55.4k	68.4k	68.4k	70.3k

Optimal buy 5% / sell 97% → 5 flips, 103.5k/day per unit (~69.0h hold) vs Default 12% / 93% → 5 flips, 101.6k/day (+2%)

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.