Market summary
Quiet tape on 2026-09-20: 3.25T gp turned over and ZUL-20 finished flat (-0.0008%). The feed logged no game updates, so there's no catalyst to pin on any move below.
Top movers
Up
- Red crab +120.2% (+137 gp)
- Haemostatic poultice +34.0% (+633 gp)
- Marrentill +33.0% (+105 gp)
- Superantipoison(4) +22.7% (+295 gp)
- Ent branch +18.4% (+545 gp)
- Fox fur +18.1% (+618 gp)
Down
- Topaz amulet (u) -21.5% (-303 gp)
- Divine super attack potion(4) -20.4% (-966 gp), the biggest gp swing of the day
- Bolt of cotton -17.9% (-499 gp)
- Steel keel parts -17.8% (-455 gp)
Red crab's 120% is a 137 gp move on a 251 gp item. Marrentill (96,404 traded), Fox fur (60,370) and Red crab (53,001) had the deepest volume among the movers.
Sector indices
Flat across the board. Skilling Supplies (-0.22%) was the only real mover. Herbs +0.10%, PvM Consumables +0.06%, PvM Gear +0.05%, High Alch Staples +0.005%. Runes & Ammo and F2P Staples were unchanged.
Anomalies
50 flags in total. The top five are all volume surges with little price movement:
- Gold necklace: severity 100, -0.91%
- Adamant bolts: severity 99, -1.56%
- Mahogany repair kit: severity 99, +0.06%
- Dragon arrowtips: severity 99, -0.70%
- Toadflax potion (unf): severity 98, -0.10%
Alch arbitrage
These items sell on the GE below their High Alchemy value: buy, cast, profit. The nature rune is already deducted.
- Dragon med helm: buy 58,446, alch return 59,864. Profit 1,418/cast, 1,701,600 gp/hr.
- Torn prayer scroll: buy 46,597, alch return 47,864. Profit 1,267/cast, 1,520,400 gp/hr.
- Mystic lava staff: buy 25,851, alch return 26,864. Profit 1,013/cast, 1,215,600 gp/hr.
- Ancient crystal: buy 149,065, alch return 149,864. Profit 799/cast, 958,800 gp/hr.
- Mystic robe top (dark): buy 71,086, alch return 71,864. Profit 778/cast, 933,600 gp/hr.
Dragon med helm is the only one with real depth (24,974 traded per day). The other four each trade under 2,700 a day.