Demonic quill
P2PBuy limit: —·last trade 40m ago
Confidence
Confidence41%
One score blending fill chance, market volume and profit quality.
Fill chance30%
Volume28%
Profit66%
Suggested prices
ConservativeSafe fillsBigger margins
Buy at130,002
Buy fills34%
Sell at149,998
Sell fills9%
Net / item16,997 (13.1%)
Est. profit / 4h1.29M
76 units · 30% fill confidence
Insta-sell
130,001
cheapest buy (full spread)
Insta-buy
149,999
dearest sell (full spread)
Gross margin
19,998
GE tax
2,999
2% per item, max 5M
Net margin
16,999
13.1% ROI
Volatility
10.2%
price noise (1h history)
How to flip the Demonic quill
The Demonic quill is a members-only Old School RuneScape item — “These look like they can be attached to a slayer helmet.”. Its Grand Exchange buy limit is effectively unlimited. Right now it buys at 130,001 gp and sells at 149,999 gp — a net margin of 16,999 gp (13.1% ROI) after the 2% Grand Exchange tax of 2,999 gp.
To flip it, place a buy offer near 130,001 gp and a sell offer near 149,999 gp; the spread minus GE tax is your profit. Confidence figures are model estimates from live OSRS Wiki prices, not guarantees — flip responsibly.
Price history
● insta-buy● insta-sell● moving avg
Why this fill score
Trading volume32%
Two-sided liquidity6%
Recent activity72%
Size vs market6%
Why this profit score
Spread persistence52%
No price spike77%
Margin plausibility100%